Prof. R. Vasudevan in conversation with Prof. B.S. Murty
Good morning, Professor Vasudevan.
Thank you.
Thanks for coming and then giving us a chance to interact with you
and to listen to you about those days, the golden days
that everyone talks about when you were here,
for quite some time. I heard that, you came here
in '63 and stayed here until '97?
So, we want to hear more from you -n
how did you join IIT Madras, what did you do
before joining IIT Madras, and then your days at IIT Madras,
your academics and also otherwise.
So, we would like to listen from you
about your whole experience at IIT Madras.
Well, you could call it the musings of a Methuselah, you know,
I will try to make it as brief as possible.
I am nudging 83,
so, I have to cover a great deal of ground.
Since, you asked about my early days,
I came to Madras as a boy of 8 in the year 1943.
You must permit me to use the term Madras
with regard to Chennai, because that was the
name of the city all the time that we stayed here.
It's the name of the institute also sir, it is still IIT Madras.
It is still IIT Madras. Whenever, somebody tells me IIT Chennai,
Exactly. I correct them.
It's IIT Madras in general. Yes. Correct, by act of parliament, it's only IIT Madras.
Sir, sir, please, go ahead. Yeah.
So, for me, it will always remain Madras only. Okay.
So, I came to Madras in the year 1943,
when the 2nd World War was still raging.
I still remember going to school,
and my mother was warning me. In those days,
the Japanese were bombing; Madras was bombed by the Japanese.
And my mother had told me...in those days,
while going to school - I had to walk about 2
miles to go to my school -
she told me what to do when there is a siren.
There was a siren mounted in those days on all the
metro stations. There was only one line from Beach to Tambaram, Okay.
and there was a siren mounted on each of those.
And, the siren would go off at the time a plane was coming.
So, my mother had warned me - the moment a siren
comes on, run into the nearest place;
if you are sitting in a classroom, run to one edge of
the classroom, don't be at the center,
and have a pencil between your
teeth, so that no explosive sound would lead you to bite
your tongue and all that.
So, these were my earliest memories.
There were air raid shelters all around Madras,
and these were removed only in the year 1944,
actually, by my father, who was a retired PWD officer,
who was charged, at that time, to remove all the air raid shelters.
There was one air raid shelter removing something...looking like a
hard stone cylinder, that’s what they would look like.
And, immediately opposite Kodambakkam railway station,
it was there...these things were removed.
So, that is my earliest recollection of Madras city.
I remember the end of the war in 1945,
when the symbol V was flashed on the sky from
Meenambakkam Aerodrome in 1945, when Germany surrendered.
I remember, when India got independence in 1947.
I was at school and we were all marched off to the
playground and each of us were given one packet of sweets. Wow.
Yeah. That is all.
So, I completed my schooling in the year
1949. And, I was under aged. In
those days, you know, unless you are had a
minimum 14 years 6 months, you could not join college. Okay.
So, I had to waste one year. I spent my time learning...
time learning short hand and typewriting.
1950, in keeping with our family practice,
I joined the Madras Christian College.
Madras Christian College for us, was a family tradition;
my elder sister studied there,
my elder brother studied there,
my cousin studied there, even my grandfather
studied in Madras Christian College. Okay.
So, I took my intermediate there. All your family college.
Yeah, it was.
So, I took my intermediate degree in the year 1950.
The intermediate in those days was like the 12th standard now.
The schools were giving only up to SSLC, that is 10th standard.
In Andhra Pradesh, which I belong to, we still call it as intermediate.
You still call it intermediate.
So, this is what it was like that. And, following that,
I branched off into physics; my background is actually physics.
I took an honours degree in physics from...
Most of the people I know, who have
done metallurgy, they are all chemists. Yeah.
This is something unique. No, not necessarily.
Your own guide, Professor Ranganathan...
Professor Ranganathan was a chemist.
Chemistry sir, I know he was a chemist. Chemistry back ground? I thought that he was a physics background.
Well, anyway, Professor K. S. Raghavan, my colleague and Professor... But anyway...
No, sir... Professor E. G. Ramachandran, also physics.
So, I took physics honors, in which, my demonstrator
there was Mr. T. N. Seshan, the celebrated
Chief Election Commissioner of later days.
Before he wrote the IAS, you know, he also took physics honors. Okay.
And then, he was there at that time.
In 1955, having completed physics honors...the Advance
Centre for X-ray Diffraction here, under
Professor G. N. Ramachandran had just started. Okay.
And, they were offering an MSc degree course;
directly offered by the university not through a college. Okay.
Straight through the university. I was therefore,
the student of the celebrated biofacies Professor G. N. Ramachandran, Okay.
I was one of his direct students. And my other teacher,
there was Professor Alladi Ramakrishnan,
The director of the Institute of Mathematical Sciences.
And, at that time, way back in 195-in 1956,
for the first time, we came into contact and could use
actual X-ray diffraction equipment, Wow.
including cameras and all that.
So, it was a privilege to be connected with Professor
G. N. Ramachandran, who was a direct and if I may
mention, a favorite student of Professor C. V. Raman.
Actually, it's been my privilege to be
connected with two people connected with Sir C. V. Raman.
Professor G. N. Ramachandran was one, and the
other was Professor E. G. Ramachandran...E G Ramachandran
himself, later on. Yeah.
So, I took my MSc from the University of Madras,
specialization was x-ray crystallography; that’s my background,
x-ray crystallography.
At that time, my desire was not to become a teacher
or even to go to the IAS, but to join the Indian Air Force. Oh!
I appeared for the interview-for the interview for
Indian Air Force at Dehradun, all the way. There was only
one centre where they used to conduct the interviews.
It was 4 days of hard interviews, you had a lot of
tough tests and psychological examinations and all that.
Four people from all over India were selected, one of them was myself.
Wow! Good.
Having been selected from Dehradun, we were sent to Delhi,
to the Armed Forces Medical Centre there for medical checkup.
In those days, they were not so keen to recruit people, nearly
50 percent of people selected, would be rejected medically.
On the very first day, I was selected.
So, I thought I had my commission on hand,
but unfortunately, the next day the whole thing was
overturned and they said "you are disqualified."
So, it's really the slip between the cup and the lip.
This time the cup was almost, at the lip.
So, it fell. So, so that was really a shattering
experience for me, because that was my greatest ambition.
You know, in those days there were not many options open to people.
Either you had to go into the defense forces or
you have to join the IAS, these were the only
Class One kind of jobs available.
But right then, in the '50s, the steel plants were coming up. Okay.
And someone told me, that a study of metallurgy
would also give you a fairly good career.
In those days, the only centre giving education in metallurgy
in South India was the Indian Institution of Science. Okay.
The total number of students selected from
all over India was 16; there is a quota system, and
the number limited to Tamilnadu was 3.
Although the basic requirement was only
a BSc degree, you could never hope to get the BSc degree from
Tamilnadu there, you must have had an honors degree or an MSc degree
with a university rank, otherwise you wouldn't get it.
Anyway, I managed to get into it.
And, I was privileged to be a student of Professor T. R. Anantharaman. Wow, wow.
Few may have heard of him.
He had one of the most distinguished academic careers, Okay.
anyone could wish for. Yeah.
From school onwards, he was throughout first,
in the stated University. He was a Rhodes fellow.
In those days the Rhodes fellowship was offered to
only two people, annually, all over India.
Professor Anantharaman...and it was a pleasure to listen to him.
So, he was our role model.
And, with my background in physics,
and he was teaching his physical metallurgy,
My love for physical metallurgy grew. Well.
So, I became a physical metallurgist from that time onwards.
So, having completed the diploma course in metallurgy,
there were the usual options for me,
I could join Hindustan Steels,
I could join atomic energy commission;
I had an offer from both of these. Okay.
The IIT Madras was just starting.
So, I appeared for an interview,
I was selected for a faculty position at that time, Wow.
in the year 1959. '59.
But, the engineering classes were yet to begin after 2 or 3 years.
So, they shunted some of us off to Germany,
for an advanced technological training.
So, there were only 3 centres in those days
giving advanced technological training in metallurgy;
one was Berlin,
one was Clausthal, the third thing was Aachen. Aachen.
There was one Professor T. Ramachandran,
who served for a short time here.
He later on became a head of the
department and the principal at Surathkal. Okay.
Professor T. Ramachandran was already at Clausthal. Okay.
And, when we corresponded with him,
he said, "there is no place for you here."
And at that time, Berlin,
there was a little bit of a problem, if you will remember.
That was a time when Germany was divided into two parts,
and you could approach West Berlin only through East Germany.
Through East Germany.
So, I did not opt for it.
So, I came to Aachen.
Incidentally, I met a later colleague
who was to work here also, Mr. Dasgupta. Dasgupta.
Professor E. G. R. must have mentioned about him.
Mr. Somshankar Dasgupta was also there at
Aachen at that time, he came a little earlier.
I started my research work at the Technical University
of Aachen in the same area in which
Professor Anantharaman was working, namely,
stacking for parameter determination
and then, its effect on work hardening.
Very recently, I should tell you, sir, IIT Madras
and Aachenn have a strategic partnership, okay,
with a lot money pumped into between
the two institutions and lot of work is going on.
Much better, exactly. Lot of student exchanges are going on
between the two institutions.
That's what I said.
So, I started doing...but maybe at this time
I should interject with a few of my other experiences
as part of the narrative.
I mentioned already that, in those days, it was more
or less always common to have a ship journey
only from India to anywhere, whether it's
America or Germany and all that.
So, Professor Kraus who was coordinating the
IIT Madras activities from Germany,
he suggested, we take a boat from India
and he would reimburse our travel from there.
There was some confusion in those days between Bonn, Delhi and madras.
So, when we left from here, I checked with
Mr. Natarajan, "where I should go?"
He said, "you take the boat, you go to Bonn,
you meet the education officer in Bonn,
who will then tell you where you have to go."
This was supposed to be a
technological training preceded by a language course
- to pick up the language - it's given in a
different place, small place.
So, when we had all booked together, that Professor Ramanujam,
he was also along with me.
Professor Y. B. G. Verma,
both of these people, they were also...
Then, there was one, Dr. Garud,
who later on became principal at Nagpur.
VNIT, Nagpur. Yeah.
Well, when I studied there, he was the principal. Yeah.
Yeah, we all went together by the same boat. Okay.
And, there was one Raju also. Four of us had
booked a cabin in by boat.
Just a few days before we were leaving, there was a
telegram from the DAAD saying, "your tickets
have been booked by plane."
This is created another confusion because
we had already booked it by boat.
Anyway, I managed to contact the people,
they said, "okay, you can go by boat."
So, we took the boat from Bombay. It was a 14 day
journey from Bombay to Genoa and from Genoa
we were to take a train and this train would take us through Italy,
through Switzerland into Germany.
So, when I was going, its pretty interesting, that time,
the Suez Canal had just been reopened.
In 1956, you would have heard, there was a problem in the Suez Canal;
Gamal Abdel Nasser had blocked it.
So, people had to go all the way around Africa,
like Vasco da Gama in the old days.
At our time, it had been opened.
So, the interesting point that I want to mention
to you was that, Suez Canal is a very
narrow channel, like this, and there are two terminal points;
one is called Suez the other is called Port Side.
For those of the ship passengers, who want to
have a look at Cairo and have a look at the pyramids of Egypt,
they used to organize a one day journey. We would
get off the ship at one end, be taken through
Cairo where we could see the museum, to
the pyramids of Egypt, the Sphinx and all that...
and they would bring us back and put us on boat,
the ship at the other end of the Suez Canal, right.
So, we were taken and had the pleasure of
seeing the Sphinx, a short ride over a camel in the desert,
and also, going down one of the pyramids;
this is one of the interesting things there.
So, we were brought back after that and
when we are reached Suez, unfortunately,
the agent had taken too much time,
so, the main ship was already in motion.
So, we were on a motor launch and
they were telling us, "from the motor launch
you can climb up to the ship,
the ship will throw you a rope ladder."
So, the ship was moving, the motor launch was
moving alongside and a rope ladder was
thrown and underneath, if you have missed,
you are there in the Suez Canal.
So, all other people preceded me, and I was the very last person
Yeah to climb up the rope ladder.
Okay. Somehow, I came up in one whole piece into the ship.
So, from there we went all the way. They stop for a day in
Naples and from Naples you could see Vesuvius at a distance.
Wow. Yeah.
After, then, we dropped off at Genoa,
from Genoa, I had to take the train.
Now, what happened was, when we were on board
the ship, there was another confusion which arose -
there was an instruction from the Indian Embassy
that, we should not have anywhere else except to go
to our respective places where we could get language training.
All of us were not getting at the same place, at different places.
The ships' captain, who had earlier told us that
he had our ticket to Bonn, came
and said, "your tickets have been changed."
He mentioned me the name of a small town which
I had not even heard, there is a ticket which you are going to get.
I told him, "this is not my understanding, because
the registrar at IIT Madras told me to go to Bonn,
I have to follow only his instructions.
The captain was very angry, you are giving me a lot of work now,
I said, "go back,
I had asked you to book my ticket to Bonn, I will go to Bonn."
So, we got off, we took the train.
Now, they had another bit of experience. When our
train was passing through Switzerland,
we were brought down at midnight at Switzerland because,
by the Swiss police, on doubts that our passports were bogus. Okay.
All of us, 6 or 8, they brought us down from the train,
they checked our passports. By the time they
found out that the passports were genuine, the train had already left.
I had already told the education officer that
we are coming by this train, we were to reach on a Sunday.
So, when we finally took another train and reached
Bonn, there was nobody to receive us.
I didn’t know a word of German, none of us knew,
we didn’t know where to go. Then, someone who knew
the area came, he was good enough, a good samaritan,
he said, "I will telephone
Dr. Baliga, the name of the education officer.
He telephoned. When the education officer came,
he was very wild with us, "why did you come?"
I said, "I had been told by the registrar to come to Bonn."
"I had already given instructions, you should go to other places, you know, go."
He immediately brought us tickets and
said, "two of you will go, four of you will go here,
two of you will go there," like that.
So, from there I went to the place where I learnt German.
So, that is a very very small village called Blaubeuren.
Its population was only 4000.
Now, the Goethe Institute had deliberately selected
these places because they wanted
the people who want to learn the language, to go to
a place where no one speaks any language other than German. Any language other than German.
It is just like throwing a baby into the water to learn swimming.
I remember, sir, when I was in Japan my teacher used to teach
Japanese without using any other language. Exactly.
He says, "you should learn a language through that language only." Through, exactly.
Not through some other language. Exactly, exactly.
You are right.
So, now, this was actually the peak of winter. Actually,
December 1st I started,
there was snow and my accommodation was on top of a mount.
So, when I used to come down, I used to slip on the snow.
Oftentimes, my book will go
in one direction, I will go in another direction.
The classes used to start with morning breakfast at 7 o' clock,
along with the teachers, complete classes,
then lunch along with the teachers, because food habits were different.
There were some who were vegetarian, there were
some who wouldn’t take beef and all, among our students.
So, in a small place like that, you had to make special
arrangements. They would go with us and after lunch, back to class,
classes till the evening.
In Germany, you have a very early dinner 6 o’clock
back, dinner, and then homework.
So, this. Very hardwork.
Yes, but this was really very good because,
I didn’t know a word of German when I first went there,
but within 10 days I could manage. That was the level of
the training at the...as Professor Murthy correctly point
out, one of our teachers once wanted to give the
meaning for the word 'fallen.' 'Fallen' in German
means to fall in English.
There were people who didn’t know English also
in those places. And actually went, he actually went
upon on top of a table and fell down,
he said, "this is 'fallen.'"
So, that was very good and we were particularly
happy to note that there were people from various
countries there and the first thing which gave us
confidence was that Professor Ramanujam and myself
were continuously on the top of the class,
to such an extent that when we finished the first two courses,
we were required to finish only the first two courses,
we were continuously getting the 'Sehr Gut' note, that’s the
highest note that they would give, they offered only for the
two of us the option you could take the middle course,
middle course, the double promotion, you could take the next one.
Now, I didn’t want to take it because
I was not too sure what note I would get.
So, I told them, "I have been all along getting the highest note,
but you ask me to take a bigger examination,
I am not sure." They said, "it's up to you,
but we are sure you will clear it,
but whether you will get the highest note, we don't know."
I said, "I will go along with the usual one." Professor Ramajunam
took the higher examination
and cleared it.
We were the only two people who were offered that kind of option.
So, following that I went to the University of Aachen
and very...started work on the stacking port parameter studies.
Now, it was when I was there
that I came to hear that Professor E. G. Ramachandran
had taken over as the
first professor and head of the department here.
Now, while at University of Aachen, I had a boss
whom I will remember as one of, probably, the
finest persons I have ever met.
What should I say? He was more than a gentleman.
I found him a nobleman, he was extraordinarily kind to me,
extraordinarily kind, considerate.
So, I was very happy to work under him.
And therefore, I also took advantage. Sometimes,
I would go on the journey. I as a doctorate student,
he gave me the privilege of having some
Diplomarbiet students. People were doing the diploma
in Germany, which is equivalent to the master's degree in Germany.
They had also do a project work.
So, that could be a part of my project work and he said,
"you can pass it on to them."
So, I used pass on some work to them and take off myself,
to look around France, here, there, the places, like that.
So, one of the things I want to mention to you again,
which is part of what you have mentioned here was,
a camping trip I undertook all the way to the North Cape.
The North Cape is the northernmost point of Europe;
northernmost point of Europe. I am referring to the year 1961.
So, there was a German colleague and his fiancé,
and myself. There was a German Dauphine, a
Renault Dauphine car; I had taken my driving licence in Germany.
So, rented through to drive.
And, my other friend was also entitled to drive.
So, the two of us we went camping.
So, we had take tent accommodation with us,
we had to cook all this, because it involved a
round trip of 8000 kilometres
to be completed in 30 days, less than 30 days.
And, we were not so rich that we could afford more than 800 marks;
the old currency in the days those days was the
German mark. In those days, the German mark was
about one and a quarter Indian Rupee.
That was...that was all we could afford.
So, we could go only by camping.
So, we did take a car and I told him that,
"I would prefer to take the highway, it's easier for me to drive,
you take the city driving, I was like..." Was there any the speed limits those days?
People say, Germany is the place where
there are no speed limits, okay?
What about those days?
Yeah, actually I will mention this to you, when we were...
I remember, '96, my host drove me. Yeah.
A car at 250 kilometres per hour. Yes.
Until I saw the speedometer, I cant make out that it is actually 250. Yeah it.
So, it was.
Auto ball It was Autobahn., So smooth drive. Autobahn.
And, if it is Mercedes, you will never feel it.
They will say, they will always say, "the Mercedes engine is
absolutely silent, at whatever speed you will go."
Yeah. Now, I want to mention about the speed in some other connection,
I had mentioned this earlier.
It's a very small car, it could not go very much beyond
90 or 100 kilometres, the small car only.
So, we had taken this car and we were at...there is
camping places, all over Europe you have that. In the evening,
we will get down, pitch our tent over there, cook
on a small kerosene stove heat and then, take a look and go around.
So, we went through-through Germany,
then into Denmark and then, from there into
Sweden, and then, from there into Norway.
In the upper regions of Norway, you have the lap...laps there,
Lapland and then, from there, you go to the North Cape,
which are the northernmost point there.
Now, driving in those regions is, was extremely
dangerous in those days. Although we went in July,
there was still some snow over there and believe me,
the width of a road was probably half this, that
you are seeing. Only one car would pass. On one side was an abysmal fall.
On the other side, were mountains with lot of
crags, that kind of thing, we could easily pick up a
scratch and all that on the car; you have to be very careful.
Now, when I was driving there, at that time,
I negotiated a curve at, what you today say was not a
very high speed, somewhere between 80 and 90 kilometres.
For some unknown reason, the car sprang away from
the road, crossed a ditch. Fortunately, where we were
going, there was little expanse, jumped along the ditch,
and came, fortunately, rightside up on the other side.
That shook us to no end,
but, we came out in one whole piece, we got out.
Now, there was a ditch and there was a road here.
So, the the problem was, how to get the car across a ditch?
Yeah, yeah.
Fortunately, it was a small car and there were
friendly passersby. They halted their car, hefty chaps,
all of them physically lifted the car
and brought it back. I mention this for that speed only.
Because, there were regions there,
where you could not really go too fast.
Norway, in those days, were
not so rich, they had not struck oil in those days.
So, in the summer when we went, there used to be
terrible stench of fish, because they would be
drying fish all the way around the river.
So, we went all the way to the North Cape.
On the way, I could read a newspaper at 2 o' clock
in the night, because the it was land of the midnight sun.
It was still so bright.
So, I reached there, and there is a very small shop there, and
then, the North Cape itself is nothing more than
just a stone and then, an arrow pointing towards a North Pole.
From that point onwards, it's water. Okay.
So, I went there and they had a
small register in which the names of all people
Who? who had come from
various countries that entered. Entered.
I thumbed through it, maybe, I did not look into it carefully,
but, I did not see any other Indian name
before my...was very happy.
One of the first Indian to land there.
I don’t know.
May...maybe it's not correct, there could have been other people.
I said one of... I might not have seen it.
One of the person... I might not have seen it.
So, we came back, but what you mentioned.
We had another problem language problem.
When we were coming down through Finland,
Finnish and Hungarian belong to a different group of languages.
These have nothing to do with Indo-
German languages, absolutely different.
The other languages are not far about. For example,
in Swedish, the word for bread is Broder,
It is Brot in German, Brod in Swedish;
you could somehow get along, but when you coming to Finland,
absolutely, the language is totally different, only sign language.
But, we managed to somehow come. Then,
we completed all the, the entire journey, 8000 kilometres
in 30 days and we reached Aachen. And, the cost including
repairs to the car, each of us paid only 800 marks. Wow.
So, that was one of the interesting... So, you could
I undertook in 1963 .
What aspects of metallurgy you have, kind of, got
the expertise during your stay in Germany?
Well, actually I was mentioned,
I concentrated well, I did go and attend classes.
Stacking falls, you mentioned. Yeah, my area which I concentrated,
but I attended lectures also, in other areas - extraction metallurgy,
general physical metallurgy and all that, they were not very different.
But, you were also allowed to operate some machines, for example, microscope?. Yeah!
X-ray diffractometer was the first thing. It like,
the whole thing was...what should I say...
very, looked like predestined and all that. Okay.
When I went to that place, my boss had just ordered
for an X-ray diffractometer, he had not worked on that himself. Okay.
And, he had nobody to work with it. Alright.
But, with my background under Professor G. N. Ramachandran,
I was familiar. The still...the diffractometer was new at that time there.
So, I started working with that.
There was an electron microscope there.
Yeah, that’s what I wanted to know whether you would have...
Misses Butanuth, was a lady.
She also came here later on,
she didn’t stay long enough here. Mrs. Edith Butanuth.
That was the electron microscope,
but, those..those days, you know, we couldn’t go and touch
or operate any of those.
Whereas, the as far as the X-ray laboratory was concerned, everything..
in fact, we had also got an x-ray fluorescence spectrometer,
at that time.
My boss asked me, "can you look after both of these?"
I said, "no, that’s not possible."
So, it was, later on, passed on to a Hungarian colleague.
So, I stuck only to this,
I used to don’t only my studies concerned with the X ray diffraction, but
there were people coming from other...
who wanted x-ray diffraction pictures taken.
So, I used to do their work also,
but, I did attend lectures in other subjects also.
Well, I had to mention this...the
this standard was not very different from what-from what,
You are want here.
It was there at, maybe, at one or two places,
it might have been a little deeper, that’s all.
19... '63 you returned here.
'63 I returned. This time, I took a cargo boat,
because, I had a lot of luggage with me. Okay.
So, I couldn’t come, so I.
I bargained with Mrs. Marga Schmitz of DAAD.
She said, "I will pay only the fare for a normal boat,
you pay the extra difference." I said, "Okay."
I took a cargo boat. And so, we had a very interesting journey.
While we were coming back, we passed by the side of Italy.
Some of you have might have heard of this name of the cinema
Stromboli in which Ingrid Bergman starred.
Stromboli is the name of a volcano, still active.
Still active, and our boat was just
passing by this side of Stromboli.
It has got a...it's a volcano, you know?"
And, the crater mouth is like this...
So, in the night, we could still see red hot lava flowing down.
There were fishermen on the other side.
So, in the night, it was a beautiful sight as our ship was coming,
to see an active volcano in operation.
Then, from there we came
under the monsoon quarters somewhere.
So, this is very interesting because the ship was oscillating violently.
Now, in a cargo boat, passenger accommodation is like first class accommodation.
Okay. So, I had a cabin all to myself.
Now, it was some kind of a, what they call Klappbett in German,
folding bed, and there was a ring on the wall;
this was to allow for the fact
that you dont fall down during tossing of the ship.
So, I had to hook my hand
through the ring on the wall, so I should not fall down.
It was really oscillating by about,
a minimum of 45 to 50 degrees.
Oh. Because you are in the middle of a monsoon.
The more embarrassing thing was that,
when I came down for lunch, we were only a few people.
So, we were sitting like this, you know, our plates were all there.
So, when the ship was taking a toss,
I was often seen eating out of my neighbours plate,
so, of course, which displeased him.
So, I reached India back
in late July 1963 and joined duty on 1st August 1963.
We were all put up in a few rooms in the metallurgy workshop,
the MSB was not yet completed.
Professor Ramachandran was sitting on top, we were also sitting over there.
My colleagues at that time,
Dr. T. Ramachandran had already retired; Professor L. S. Dasgupta,
and Mr. Ramakrishna Iyer,
who was there at that time; Ragunatha Rao,
he was also there; there was one Venkataraman.
So, far as it's not too many people.
So, metallurgy was all in one building, the workshop.
Practically there only.
So, the... The crates were still being opened.
forming did not come up.
No, the crates were still being opened, you won’t believe it,
the very first batch which graduated out of IIT Madras in 1964,
they graduated in the year January not in July because,
following the Chinese invasion
there was an acceleration of the courses. Okay.
And, all the courses are required to be complete by January.
So, with the effect that, the very first batch graduated
without ever having taken a peak
into an optical microscope.
Oh not even. The crates were still being... the crates were still being opened.
Okay. The crates...and unfortunately the
the Metallurgy department was planned by
a few people who belonged to mechanical engineering.
So, they were not all really familiar.
Okay. So, we did not get the kind of equipment we needed.
The only X-ray unit we got was the outmoded ciphered x-ray unit,
An unstabilised unit, 57.3 millimetre camera.
That was all that we had on the camera.
You couldn’t do any kind of research work with that kind of thing.
So, I felt really lost.
After cosming back here,
I couldn’t do any work in the area of x-ray diffraction
until we got the X-ray defractometer.
This we got, thanks to Dr. A. Ramachandran.
Dr. A. Ramachandran came as a breath of fresh air. 1968,
he brought research into IIT, at that time.
So, we were to get some x-ray facilities
and I had gone on a Humboldt.
So, I was one of the first go on a Humboldt, myself and
the Professor B. V. Rao from IIT Madras.
So, Professor Ramachandran knew
about this I was working in x-ray diffraction.
When I came back in 1969, he said,
"we have an arrangement with Germany,
about two hundred thousand
German marks worth of equipment to come.
But, we want to have a centralized facility because, you can use it,
metallurgy, chemistry, can use it,
physics can use it, we cannot have separate.
So, we will have one central x-ray facility."
So, our Central XRD came that way.
Right, came that way.
So, he asked me, "you plan it out."
Okay. So, I planned out.
So, this was '69 - '70. '69 - '70.
But, the equipment had not yet come, Okay.
we had to place an order.
Professor Zeurn had come from Germany,
he was helping us in getting all this equipment.
So, we had planned this kind of thing,
I had worked with the Philips unit there,
So, I said, "I prefer Philips unit, Philips diffractometer"
Professor Zeurn helped us, otherwise we might have got other units.
So, he constituted a committee of which I was the convenor.
And, there was Professor Aravamudhan of Chemistry,
Professor Ramanamurthi of Physics, these were my other two people,
this was a... and myself as a convenor.
Now, he said, "you have to get it started and going immediately on its arrival."
By the time we came to know that everything has been
shipped, it was '73 January, also it was coming...no place.
So, the faculty association was, those days,
located in those small rooms,
where we now have a Central XRD lab.
So, we requested that they vacate to another place,
and otherwise, construction would have taken more time.
Okay. And, we had do it.
So, the equipment landed in Madras port,
and the Philips people were very helpful
and within 1 month flat
of the equipment landing in Madras port,
we had the laboratory going.
Completely. Completely.
X-ray diffractometer and then, small scale, small angle scattering
and, you know, other associated things also going and...
But then, were there any efforts to do texture those days, x-ray texture?
No, at that time what happened was,
I was not actually in the area of texture. Texture.
I understand, Mrs. Mahalakshmi Seshasayee, later on also, was working on texture.
Dr. T. Ramachandran was working on texture. Okay. Earlier.
Yeah, yeah. But, he was not here at the time, when this came.
I think we did get some attachments, I am not too sure about that.
But primarily, the interest was in powder diffraction. Powder diffraction.
Ozone powder diffraction. I understand.
So, this was the main thing.
So, professor... I got excellent cooperation from
Dr. Aravamudhan and Dr. Ramanamurthi,
both of them they pitched in. But more importantly,
not only did we not have any space for me at that time,
I had to move to whatever space was available,
I had no staff, nobody, nothing.
Get started working, I was one man who was trained in that area.
So, at that time, I had the great good fortune
of getting two outstanding students;
one was Professor Kesavan Nair. Oh! Okay.
Who graduated from IIT,
And was my MS student also,
and there is Dr. Pathiraj, who is now in Holland. Okay.
These two people joined me at the right time.
Professor A. Ramachandran told me that,
"I want the laboratory to function; function means function."
so. When I actually joined here in 2004, Professor Nair was not there,
So, I was made XRD incharge.
So, I was central XRD incharge for some time.
So, what we did was, we also agreed that no student should be turned back.
So, Dr. Kesavan Nair, who started working,
that time, fortunately, we also had the service of
Professor Macherauch from Germany.
Professor Macherauch, is a very well known person
in the area of residual stress analysis,
,that’s how we started under residual stress. Yeah, sure.
He came for a one month stay here.
So, he came to our XRD laboratory,
at the same time, Nair was there, Prathiraj was there.
So, he instructed, he personally used to spend time here, night and day,
and set up the facility, trained them and all that.
Subsequently, residual stress measurements from here, passed on to BHEL.
Building Research Institute. Even now, sir, lot of industries, Ashok Leyland,
and a number of industries come for residual stress analysis.
Yeah, from here, yeah.
After that only, we got the Rigaku.
Rigaku yeah. The x-ray diffraction unit and all that.
Now, Mr. Varadachari joined us, at about that time Yes.
I was alone once again, I had practically no staff.
Varadachari. Nair fortunately, Nair, my MS student,
got the job as an STA. Okay.
That is something. Pathiraj still continuity as a PhD student.
Then, there was one Miss Meenakshi, I dont know if you remember her,
she was loaned to me by Professor Aravamudhan
as a ah technical assistant.
She is, now, in America also.
Then, Chandrashekar was there.
Like birds of passage...and when they left,
I didn't know what to do. I met Professor V. S. Raju,
he said, "I have a man working with me,
do you think you can train him, I have no need for him."
I said, "give him to me." That's how Varadachari joined us. Vardachari came.
He stayed with us and Just about
2 years back he retired.
He left.
So, actually, the laboratory, I must say,
I was in charge and general fashion...
but the real development, I must
openly conceid, was due to Professor
Kesanvan Nair who was my student, and ah Dr. Prathiraj.
Dr. Prathiraj, subsequently went to Holland,
where our work done here was recognised
and Professor Kolster from the University of Twente,
he was taking people from here.
So, Profesor Kesavan Nair had gone there,
I also, was invited twice, he had a centre for advanced physical metallurgy there.
They were working on residual stress.
So, But, that time, did any electron microscope coming to IIT?
Yes, electron microscopy actually had come a
little earlier. Professor Sreenivasa Raghavan was in charge of that.
And, Dr... Any other facility...?
Dr. Butenuth...no these
were the things. The scanning electron microscope
was still coming a little later.
I think Dr. Gokul Rathan subsequently
came too, later, little later.
But, you know, I had my hands full with
XRD itself. XRD, I did not want
anything else. And, I was also getting interested
in some of the areas at - some other areas at that time,
I wanted to go into development and technology.
So, so x-ray diffraction and residual stress analysis is one aspect of it.
Then, I wanted to develop some other
areas also, fairly unfamiliar areas,
because I have always been thinking that there is a great difference between
fashionable science and relevant science.
And, I am a person who
goes in strongly for relevant science, that is where the
the, you must have tangible results,
for whatever money you Correct.
put into it. Correct.
It's my personal point of view that,
if you put into 10 crores of money and then get
3 papers published,
however, exalted the journal...
Maybe, it's my personal view, I am wrong,
it's possible, but it's my personal view.
I personally believe that, rather than that,
if you can spend doing some work
on improving any aspect of technology by 10 percent,
guaranteed 10 percent,
with a marginal input of money, public money,
that is really, the kind of
development meant for this country. Anyway, this is a personal opinion.
Okay, to come back to our thing.
So, 1968, we started our postgraduate
programme in metallurgy. That was the first
postgraduate programme was physical metallurgy,
1968, we started.
Year after that, Professor E. G. R.
was always very keen on industrial metallurgy.
So, he said, "physical metallurgy we are there, for industrial
metallurgy, we will get the people from Germany."
So, Professor Zeurn came in for welding,
there was one Professor Bandow who also came in
for welding, Professor Wagener came for metal forming.
And, there was Dr. Panchanathan, Dr. Roshan etcetera,
Dr. Prabhakar, they were all taking care of foundry.
Foundry, and Prabhakar was also looking
after non-destructive testing at the same time. Non-destructive, correct.
So, this way, it was being developed and
I did feel that the demand for physical metallurgy was
coming down because there was a feeling
among many people that the MTech in
physical metallurgy does not really fetch you jobs.
So, I did try to bring in a practical emphasis to physical metallurgy.
So, bringing in some kind of, you know,
real cases of a courses and fracture analysis,
real case of fracture and things like that.
So, we did change the
ah the title from physical metallurgy to materials technology,
to indicate their support.
So, this is how..
So, when I joined, 2004, I can say
those days casting, I mean casting was
going down, welding, forming and materials technology
was enlarging. Materials technology.
Of course, a big boost came when,
Professor Padmanabhan
joined metal forming. He was
an outstanding person and
today he is going to give, He is going
give the lecture today.
he came from Banaras to join us,
and, it was a very good acquisition by the
department to get Professor Padmanabhan.
So, that's how it started.
So, afterwards, subsequently, I had been making some visits to
Foreign countries periodically.
I was spent a year as a Humboldt fellow,
'68 to '69, I told you. I was
at the Max Planck Institute of Stuttgart,
where the person sitting at the table next
to me was Professor Anantharaman himself.
We were together to take the work under Professor Gerold.
And actually, I had gone to Professor Gerold only as
Professor Anantharaman suggested that.
So, Professor Anantharaman and I were
working together for 1 year at
the Max Planck Institute.
Then, 1977 I was given a Max Planck
Society Senior Fellowship. I went
on a sabbatical, this time to the Max Planck
Institute for metals research
at Dusseldorf. At that time, I did
some work which incidentally
got me a invited membership
into the ICDD. I didn't remember or
know at that time, that this work is going to lead to that.
I was doing it as an aside, actually.
Very different from what I was going to do there.
So, '77 - '78, I was there and I came back.
'82 I again went, this
time there to the Institute for Refractory Research at Bonn.
I wanted to work with my old boss Professor Maddox there.
I was put along with a geologist
but what we had in common was
x-ray diffraction. Okay.
So, we were working with that one.
'87 there was, once again I visit
there was a INSA and KNAW,
KNAW is the Royal Dutch Academy of Sciences
and the Indian National Science Academy, there was an exchange programme.
So, he went visiting Holland
because Professor Kolster wanted me to come out,
Professor Kolster had come and visited us here.
He was very impressed and he said, "I want
to take your people here and build up."
He went there and he again, called me in 1989.
I spent 3 months there, at which
time he even asked me to deliver some
lectures to his students,
which I understand, was well received by the students.
So, after that I had...
he had wanted me to come
every year, if possible,
for a few months there, but that wouldn't work out because
we had rules in those days, you know.
I had to spend 3 years, I had to be under a bond here. Okay.
Whenever I used to go, that was not possible.
Nowadays, in principle, every summer you can go if you are
Exactly. willing to.
Exactly. That's possible.
Now, the all this was not possible, in
those days. Yeah, yeah.
So, in 1995, I were superannuated. Okay.
And, at that time, the emeritus fellowship was just
coming in. Not by the IIT,
but the All India Council of Technical Education. Okay.
So, I was one of the first to get that, only for a period of 2 years.
2 years. '95 to '97.
So, in that period of time, I want
to come to this aspect now,
towards the end of my stay, I was getting
interested in the area of developmental technology.
Now, I was always interested to know how
Russians had pulled themselves up with their bootstrap,
they did not have have money enough money
and still, they were doing research work
comparable to what the Americans were doing.
We used to get translations of the
Russian research work here.
So, I used to spend a lot of time in the library here,
looking into the Russian research papers.
What interested me there was,
very often, the papers were very short,
2 pages or 3 pages - this is what we have done and this is the result.
They would not necessarily go into the thermodynamics behind it,
they would not go into the theoretical
studies behind it, this is what you have done
and this is what you have obtained.
I was wondering whether there was anything behind it.
One such thing which interested me
was, this principle underlying the
thermocouple welding gadget,
it is mentioned as an Yasno Bogorodsky effect.
This name Yasno Bogorodsky
is not known anywhere outside of Russia.
It is mentioned in a few Russian books.
The interesting thing is that, this is a
form of electrolysis.
Under certain conditions,
with electrolytes of a specific concentration
and specific voltages, you don't have
the usual kind of electrolytic heating
which is only resistance heating.
The fall of voltage between the anode and cathode
is not uniform there, normally it is uniform.
And, you will find the usual thing, discharge
of hydrogen at the cathode and things like that.
Now, with some electrolytes
and with certain voltage ranges,
you have some kind of a pseudo-anode,
it is not really a metallic anode
building up very close to the cathode.
So, the potential drop
is not uniform, it is very steep. Steep.
Over a small area and then gradual.
This steep is so strong
that it can give rise to a spark discharge
and the spark discharge will produce tremendous heating
at the cathode; tremendous heating at the cathode.
So, the whole idea was,
the right concentration
and the right...I could not get information from the old books here.
At that time, Professor Indiresan had sent me as part of a
Government of India delegation to the then USSR,
for studying corrosion, a joint research in the area of corrosion.
So, we visited several parts of the old USSR.
So, when I was in Moscow,
I requested the people there, those days, you know,
the commissioner, so, everything there,
they could dictate and call a professor like this.
So, I said, "such and such a professors written a book,
I was wondering whether I
could talk to him?"
We will summon him here.
So, he was there.
So, I said what is it
I said, "sir, you have written this..
I have been trying something here, I did not
quite succeed, do you remember?"
"No, no, I got the information somewhere else also,
I dont exactly remember it."
So, I came back,
but then, subsequently a
student working with me here, at that time,
I think, his name was Rajia,
he found out,
after lot of experimentation
one day he just walked into my room and said,
"sir, I have got it."
I couldn’t believe it, there it was.
Then, we immediately thought,
this kind of concentrated heating
in a small area, you will understand,
we could melt copper,
We could melt copper,
under the cathode it will drop down,
and, if you touch the electorate it will be at ambient temperature.
So, almost the entire heat was concentrated now.
Because of this, there was no energy loss. Okay!
So, I got one of my students
Pampa Rao to do actually these
specific measurements in the
electrical engineering department
with regard to power consumption.
We, first of all, took a very large transformer,
that was found to be a wastage.
They said, "this is not necessary, this is not necessary."
You wont believe, it when we finally built
the thermocable building gadget,
it was only 17 watts transformer, just 17 watts.
The time taken for a thermocouple weld
time taken, it was working from a 5 ampere outlet,
please understand,
a welding working from a 5 ampere outlet.
Not heard of ususally! You cant.
We had thermocouple welding gadgets here, imported from there.
The cost of manufacture was only 500 rupees. Wow.
And the cost of one weld
was less than one tenth of one paisa.
There was a time when. Did you did you kind of try to patent?
Yes, yes, yes, we didn’t really get very far,
but, one thing I was very happy about,
at that time, a large number of students
doing research in many places, who wanted to
you know weld thermocouples,
they used to come in large numbers. Our Murugesan,
I dont know if you remember, Oh.
he was a technical assistant.
He was the one who I kept
in charge of this equipment.
There was one Ashokan who was working.. Murugesan
used to handle physical metallurgy
lab Physical metallurgy lab.
he was also in charge of this, I asked him.
There was one Ashokan,
who was working with me and another project with Sri Raman
this another thing which he developed
that was ultrasonic fatigue testing.
This is extremely rapid fatigue testing
which will produce high cycle fatigue
that is more than a million cycles.
The time taken would be only two to three minutes,
because the stretches were generated
by ultrasonic means,
ultrasonic waves or elastic stress waves
and these are a 20,000 cycles per second,
your regular fatigue machine
works at about 50 cycles per minute.
So, you can imagine
a high cycled fatigue testing,
I could complete in a matter of
2 to 3 minutes,
what would take you for months.
The only problem was the power
Power. required for the unit.
We had to have very very small samples.
And, we had to design this,
you could not use the usual barium titanate crystals
that you are using for the normal ultrasonic clearing,
you had to go in and prepare
a special facility with nickel transducer.
I needed a special fine grained
nickel sheet for this
purpose which was given to me by a
friendly professor from England.
So, with Sri Raman, we developed from scratch,
a high cycled fatigue testing machine
the samples used to be only so small.
And, what astonished many people was,
I mean, I will come back to thermo couple welding
agent in a moment,
you would screw the sample
from one end;
the sample will be screwed from one end,
it will be free at the other end,
it is standing vertical...
Please understand it's
screwed at one end,
it is not held at the other end,
it is not held this way,
what is the stress acting on it?
There is no stress
because there is nothing which is pulling it from this side. Okay.
So, you dont even have
a cantilever force because I am not holding it this way.
The whole thing was because we had..
under specific conditions,
we could produce nodes and antinodes.
So, we could produce antinodes at
one portion and node
at the other portion.
We had to concentrate the stresses at the central portion only.
So, in order to get this we had to have only very very
small samples we had took,
but then, the advantage was that
we could fabricate such samples
and, we did demonstrate it to many people,
including Dr. V. Ramachandran
of National Aeronautical Laboratory. Okay.
Many people who would not believe
that fatigue would come out like this,
we showed them, the sample would be held like this
and after about 2 minutes, it would fall down
as if an axe along its neck, right in the middle.
Now, we did enter it for a competition,
I dont want to go into the details behind
that, there was some jealousy
because we didn’t get finally, because
the people who opposed it, opposed us on one score
can you compare the SN cycles
here with the regular SN cycle.
He said, "that’s not the purpose
behind which this is constructed,
please understand why I am doing it,
I don’t know whether its a 1 to 1 correspondence
between ultrasonic fatigue testing
and the normal fatigue testing. Normal fatigue.
But, the results were like this."
Suppose you have a number of options
with regard to a material,
either with regard to welding
or with regard to composition or heat treatment,
the question is,
which is the best option?
So, I said, "if you can do the welding,
according to various
procedures, whatever it is that you think is.. then as
change the composite etcetera...
bring me these samples,
I will check these samples and tell you
which is the optimum among this, which is the best. Okay.
This result will be the same
as what you will get from the other one,
but that will take you months to..."
In this.. This way how we put it,
but, they wouldn’t see it like that.
They said, "unless you are able to
tell us the connection
between the actual SN cycle and this, we wont do it.
This was at the fag end of my stay.
So, I left. I just stayed enough to
connect contact with Sriraman,
who was doing his PhD with me,
to complete that work.
Very other..many other interesting... Some of your students,
where are there now? I mean..
Nobody is there, I am very sorry to say that.
You see, the other people went into other areas also.
This..there are other angles to this.
Actually, even the unit has been dismantled,
I am very sorry because
we did find some other things there.
Martensitic transformations
in austenitic stainless steel,
you dont get it at room temperature.
You will get it only at subsidiary temperatures.
Now, what happens is,
if you, this is with regard to MS,
but you have MD also,
when you go in for defamation,
it will be at higher term. Higher term.
So, the stress for this will have to be very high.
Now, you will understand here,
when there are ultrasonic waves
produced with this kind of power,
my unit had something like, I think,
some like 700 watts power,
not like the barium
titanate which works with about 40 or 50 watts;
tremendous force.
So, if you had a sample like that and dipped it under the water,
it was subjected to cavitation bombardment. Cavitation.
The cavitation bombardment was so high,
that we produced martensite on the surface,
confirmed by x-ray diffraction studies. Okay.
At room temperature At room temperature.
and, above room temperature;
above room temperature.
More interestingly,
subjective correlation, now I am speaking from memory,
22 years ago,
we produced not one, but
two types of martensite.
And, these 2 types of martensite, you know,
when we reheated them,
they vanished at different temperatures.
Another aspect of this was,
because of this tremendous amount of
bombardment in a very thin area,
you could produce surface hardening. Okay.
Shot peening kind of. Shot, like
shot peening.
Like shot peening. Yes, yes.
Over very thin area
only, but the... How people use the word splat..
Yes. Okay,
surface modification. Yeah yeah.
Through this kind of thing
So, this I was a thing, which I felt
we could use for many things.
So, anyway this is one side of it, I still believe that
we could do a lot of work in this area.
One point which I mentioned to them was,
India was getting into missiles,
in those areas.
So, my disagreement with some of these people who,
I said, "look here,
you say ultrasonic fatigue testing has no.."
at least they couldn’t see the importance.
I said, "the missile is flying through space at that speed,
the flutter is there,
are they at 50 cycles,
or are they more likely to be at 20,000 cycles?"
That’s true.
Well it carried no weight.
So, anyway I was stepping down, that
is over, anyway..
these are all the areas where I want to get in.
Interesting. Another I...
another point I want to mention, similarly this RPM,
the electrolytic heating,
you will understand,
you could produce the induction heating in steel,
but then, only steel
which is ferromagnetic. Yeah.
Above the Curie Temperature, Correct.
steel cannot be heated,
then, only gets heated through conduction. Correct.
So, the initial heating at the surface
is only until you come to the Curie Temperature,
not thereafter.
After that, it's only heating from the bottom. Okay.
Now, this could heat..
this is not dependent
on the ferromagnetic effects.
So, not depending on, you could also heat aluminium.
But, it has to be a conducting material.
It had to be a metal.
Correct, metal. It had to be a metal.
It has to be a metal. It had to be a metal.
Cannot be a... Please understand
the beauty behind this.
We produced with two pieces of wire,
close to each other, copper and zinc.
The idea was, as I told you,
there is a very thin film of hydrogen surrounding it.
This film of hydrogen is also a sheath,
is also the cause for the heating.
So, when we melt it and we produce separately,
please understand, from a single container
separate nuggets of molten copper and zinc not brass.
Wow, wow. Not a nugget of brass,
separate. Now, what I felt was at that time,
I barely felt that, this required development,
there is a lot of wastage going on in the metallurgy workshop.
Generally any workshop,
they file things rings fall down,
copper, aluminium, steel, all of them.
If its possible for us to build a gadget
whereby these could be remelted
and obtained in the form of small nodules,
you could use them in the foundries
for additions. Now, this is a place where
you could melt them from the same container,
and get them as separate things,
only you need a gun.
So, we did also make a gun at that time.
There was one boy called Mohan who fabricated it,
he passed away in USA later.
And, you believe me or not,
we did have a gun,
and we bored through white cast iron.
White cast iron, without producing cracks.
We produced three holes Very..
next to each other because,
the heating was severely confined to that area. Okay.
There were some problems,
the area, in all these cases,
the anode to cathode area is very critical,
you must have a very large anode area
compared to your cathode area.
So, if it's thermocouple weighting gadget, no problem,
my anode was the container itself,
the cup. So, I got over it easily.
But while boring, you dont have this.
So, I was really thinking
that, what you needed was actually a spiral anode.
We didn’t do it finally,
but I do believe that if you do that one
it should be possible for us to bore through
very hard metals,
and also...these are all areas where it could go.
I mean physical metallurgstic doing a lot of applied...
I was interested. Engineering
It is amazing, which is not usual, There was.
I should say.
No, I should. Being a physical metallurical myself,
I can say this. See, based on this
I cannot produce a paper
which will come in any of the exalted journals.
But these are applications. ...we will research for a while?
The proof we are putting is in the eating.
You are right, sir,
I can agree with you.
One other..one other, let me just
mention these, two other things which I want to..
These are two areas
in which I still believe work can be done, if
only, thing is we need the combined efforts
of a mechanical engineer, Mechanical engieer.
a design engineer...
Am I overshooting my time?
Please tell me if I am... You go ahead.
A design engineer,
an electronics engineer, and all that. If you do that,
you can produce unique gadgets in this country.
Because our thermocouple welding gadget is not
paralleled by anything else outside.
There was one gadget which was
brought from America, working under..
which was costing about
20 times our gadget
and could not do any better than our gadget;
you can produce cheap ones.
This and also, you can develop it in many ways.
Ultrasonic fatigue testing, I believe,
is something which we can also develop.
Then, the third, next thing I want to mention was,
the effect of coatings.
I had noticed from East German and Russian journals
that there are certain coatings,
once again, not every coating,
which have a tremendous effect
on fatigue crack and fatigue crack propagation.
So, we did a lot of work with regard to many coatings
and we did find that some of the coatings which people are using
for paints, some of these,
have a very strong effect on crack propagation.
So, we were able to identify one or two
resins and paints
which could really, you know,
this we actually tried in our auto workshop.
They sent springs to me.
In our house, my wife and I
used to clean the leave springs.
I quote this and I have a
a letter from Mr...late Mr. Kumar,
who was the workshop superident here
saying, "sir, thank you very much,
the life of our buses
has now increased by at least 50 percent,
Wow. and our jeeps."
One to two. Now, the only thing was,
these lessons have got a very short life.
So, what you should do is
you must have, you can use this in a place, you know,
where there are large number of units to be treated.
For example, like..
like a, like a lorry production place or something like that.
All that it requires is,
it will not cost you more than 50 paise or 1 rupees if you applied,
but the minimum guaranteed life,
with specific coatings can be at least,
50 percent. read it along with the down time,
when a bus breaks down.. Bus breaks down.
this you can do within 1 rupee. 1 rupee. 1 rupee.
With an 1 rupee you can do it.
This is once again an idea which I got,
once again by going through
old Russian and East German journals. Germans and Russians were really..
They really. clean.
But then, the only thing was..
if you had said
simply this result to an american journalist,
it would have been turned back saying,
"tell us the reason why this is happening,
Workout the thermodynamics behind this" and all that...
They were not satisfied with the results only.
So, I was then I was saying, finally, about kidney stones.
So, Professor Keshava Nair had a kidney stone. Okay.
And, at that time, there was a doctor here.
He came and said, "kidney stones ah sir?"
he while he used to come to our XRD lab,
he was a good friend of Keshavan Nair.
So, we were talking, he said,
"sir, kidney stones depend very much
on heredity,
on food habits and all that."
A first generation,
Japanese-American
and a second generation Japanese-American
and a third generation Japanese-American,
they would all have the same this thing.
So, for each place, you need a data bank,
for treatment, because
we have this mistake
that we treat our patients here for all diseases
in the same way as we treat foreign patients.
Now, if this depends on a genetic trait,
I don’t know whether it is strictly correct.
So, we want to first of all find out,
there are various kinds of kidney stones..
the most common
are of course, the calcium oxalate stones
then, after that, there are the uric acid stones.
Speaking to our doctors over here,
I found out all kinds of things
which could be present in kidney stone.
And, we had at that time, the... So,
x-ray are We had the... we had the...on those books.
I had the x-ray diffraction pattern there, and I had one student there,
who although worked with me on electrolysis,
he was wizard in computer programmes.
So, I caused him to work out a software,
we have a copyright of the software.
So, the main problem here is this,
you see, you never have a single face,
what happens is, it could be a combination,
it could be calcium oxalate some proportion,
uric acid some proportion and all that..
now, it is like, for example, identifying a criminal
from his thumbprint. Thumbprint.
Now, if there is only one, there is no problem.
If 10 people are going to put, that’s a problem.
Now, therefore, we had all the patterns.
So, I asked him to work out a software,
whereby we could eliminate it and we had it. Eliminate it.
and we could really identify
and we did prepare this
and, I did at that time, I was approached
by the local doctors,
general hospital Madras
and also from Pondicherry...
they wanted to joint research programme to be started.
Unfortunately, the authorities then said,
"unless they pitch in with the funds,
we dont want to join into this."
I said, "look here, they are treating poor patients,
they dont have the money,
lets join into the.." then he said, "we will have joint guidance.
We want from you and we will
you knowm all these things, you know, it needed cooperation..
In the kidney stone, when the doctor operates
he throws away a kidney stone,
that’s not correct,
you should take it and keep it because,
you should find out the food habits of the patient. Correct.
All these things. So, you must keep it with you.
People usually do chemical analysis,
that’s a problem
because, there are many allotropic modifications
of the same chemical formula
chemisty cannot differentiate.
By XRD, we could do this one.
We did find
and we had a collaboration with the doctor from trivandrum,
99 percent of chemical analysis under XRD,
absolutely they overlap..
and in the remaining 1 percent I told him,
"your chemical analysis is wrong."
I go by XRD data.
So, now, we want to prepare a data bank,
we could not prepare the data bank.
This is only for kidney stones; Kidney stones
are always very highly crystallised.
You know, their kidney stone patterns are very sharp,
there is no problem.
But then, when you come to gallbladder stones,
these are not very well crystallised.
So, you usually get a very broad pattern.
Now, identifying them is a little difficult.
I think, if one gets into rietveld analysis..
One. for our software programme,
we didn’t have the rietveld analysis built in.
If you do that,
if you study the gallbladder stones which are not nearly
as well crystallized as kidney stones,
as well as other deposits,
I believe, this would be an area where we can go
finally, archaeometallurgy. Any any other aspects of
you are stay at IIT Madras you want to recollect?
For example, your relations with the students. Yes,
yes, I will tell you one thing. Campus life
exams. I enjoyed my life with the students.
And, I have no hesitation in stating
that, I have often learnt from my students.
I have often learnt from my students.
It's always true.
I went after about 20 - 25 years of service,
I was once asked to give lectures
on material science,
to electrical and electronic engineering students because,
nobody else wanted to take that course.
K. J. L. Iyer forced me to take that one..
that was a large part of theory of metals and things like that.
How was campus those days
when compared to the campus now?
Yes, there were, you know,
far fewer buildings than you have now. Okay.
There was a far greater,
larger share of nature itself at that time,
and all of us, as I was telling, many of us had gardens
in our houses.
So, we used to have garden competition and
you know. . When water scarcity
has now, created a problem while gardening. Yeah, yeah.
Yeah. Fewer vehicles also, in those days and..
By and large, you know, it's very very beautiful campus.
I can only put it like this,
if I have the option
to relive my life all over again,
I would like to serve again at IIT Madras. Come back.
thank you very much.
Professor Swamy, you wanted to say anything?
Excuse me, I just wanted clarification,
you know, we..
the metallurgy department was involved in teaching
BA Metallurgy to students of Anna... Yes, yes.
Madras University. Yes, yes.
Do you remember? Yes.
Did you teach any course, like '70 - '71? Yes yes yes yes.
Okay. I used to go there because
Dr. Kulandaiswamy was at that time, dean there. Yeah, yeah.
Dr. Kulandaiwamy was at that time dean
and, I was asked to go and deliver some lectures over there. Yeah.
I also, that’s why another thing is
your brother-in-law Tathacharya.
No, brother-in-law, Tathacharya, yes.
And, he was a member of the senate also,
was he a visiting professor,
your brother-in-law, Tathacharya? No, he came only for a short time.
No, no, was it for one, but he was a member at senate,
so, persons in, Right right.
did he work on anything called Kirlian photography?
Yes, yes.
Kirlian photography that’s something which,
I dont know how many of you..
you see, Kirlian photography
borders on the arcane -
can life exist
after some part is cut?
This Kirlian photography, he did demonstrate.
If the Electric Engineering department..
experiment is like this - a leaf is there,
Yeah. The leaf is excised,
a part of it is excised and cut off,
and then, this was done in our
Electric Engineering department.
Electrical radiation cast a shadow there of
including the part
which had been cut off. Oh.
It was also visible. Did this make use of
the electron microscope or how did he do? Yes.
Electron microscope which. But, I dont know the full details,
I know about this particular thing, this Kirlian,
this create a lot of sensation at that time, including the
governor of the Raj Bhavan, he was interested.
He called him,
he said, "I was interested in seeing this." Okay.
But, this was really the case,
even after a thing ceases to exist,
certain kinds of radiations can detect the absence.
Okay. In fact, why I am asking you is, I told Professor Murty also, Yeah yeah.
A doctor, Neurophysician in Medical College,
had tried to make use of this
technique in order to find out even the people who were Yes.
buried as Jivasamadhis. Jivasamadhis, they were trying to investigate. Yeah.
Actually Professor Tathachari, went back to America afterwards, So, I can.
he was very much interested in Kirlian photography, but
he was also great scholar in Sanskrit and many other things,
all sides, biophysics also..
he was a close student of Professor G. N. Ramachandran. Yeah.
He was a professor at MIT,
he was a professor at Stanford,
he contracted cancer and then, finally, he passed away.
and, he was working in this area, you are right.
Kirlian photography the... Okay. photograph was taken here,
in the Electric Engineering department
in the short time, yeah, yeah. I see, in photography said like you.
Having mentioned that, one thing I forgot to mention is,
my interest in archaeometallurgy.
I mentioned to you, India is a country where, you know,
we have iron and steel going back to periods
when the westerners were not aware of this. Correct.
And, I still believe that,
there is a lot of scope for doing
your work on archaeometallurgy here.
I'm mentioning this because, one of my students
did go to the Kodachadri hills.
At Kodachadri hills, there is a small pillar,
it was supposed to be made out of iron.
Going there is very difficult.
He told me, he went by bus,
and then he went by walk,
and he is lived under a tree,
chopped a little bit of that, came, we analysed in our laboratory.
The purity of iron was 99.5 percent.
99.5 percent iron,
2000 years back. In a piece..in a piece of pillar where,
the annual rainfall was 650 to 700 centimetres, a year.
And, we don't have radiocarbon dating,
so, we cannot tell the
how. exact date of the..
shoulb be a few centuries, at least, yeah true true true.
old. But, where we were lacking
in those days, we had done also some work,
we did not have the support of radiocarbon dating
nor thermoluminescence stating.
If we do this, at Melsiruvallur
and at other places in South India,
there are many things,
which go back easily to a 1000 year and more than that.
We could do a great deal of work
and I think, we should start archaeometallurgy.
At least, to respect our forefathers. I think.
Who were, you know...
actually, Konasamudram was the
place from which the Damascian steel went,
who made a Damascus blades and all that.
Sir, before we close,
any message that you would like to give to the
younger generations?
Well, I really dont know whether I am
qualified to give any message. I find
the younger generation also
you know, they have got much more knowledge than what I have.
The knowledge which I have is very small,
compared to the knowledge. To be, to be honest..
the kind of passion that you people had,
I think, that is something which is missing.
Maybe, they have knowledge,
they have information available,
but, but, the fire to do something is...
All I..all I want to mention was that
Try to try to. Do try to get into the area of
developmental technology.
All I mention is, this is something
which is an article of faith with me.
Do try to work with a small amount of capital,
and, try to see if you can produce definite,
that should not be arbitrary..definite results.
If you are able to produce
a 10 percent guaranteed Yeah.
improvement
n the performance of any product, Improvement.
after, let us say, investing
a few thousand or a few lacks of rupees on it,
it is worth it.
So, do go into it, there are a lot of, you know, all around you, Sure sure.
areas are available for research. Available.
And, we do a lot of fundamental research,
it's probably very good, I am not denying that. Sure.
But, there should also be a place for
developmental research.
Thank you, sir. Thank you very much.
Wonderful, thanks for coming.
Thank you so much. Thank you sir, thank you.
Okay.
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to the Centre -
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Support - Digital
Material
Prof. Ganapathy Chettiar in conversation with Prof. V. Anantha Subramanian
Good morning.
Good morning Professor Ganapathy.
It's my pleasure and privilege today to have a chat with you
so that we recollect some of the very important events, your career,
your experience at IIT
and so that we get a full wholesome picture -
of- Ok, thank you. Yeah.
I'll start with my education background. Yeah.
I was born at Trivandrum, Kerala state,
and brought up there
and it is very important to stress Trivandrum
because with my family background,
I could complete up to engineering in Trivandrum.
Because Trivandrum is a advanced city with Engineering College also. Right.
All the colleges I attended were of commutable distance by walk or by bus. Bus
Then, in 1961-
Yeah.
Our batch was the all-Kerala batch - first batch of all-Kerala.
All-Kerala yeah.
And in 1961, I passed with first rank and
First class distinction. Gold medal yeah.
and also I received gold medal from
Yeah. V. V. Giri at that time. Great.
Absolutely wonderful yeah.
Then... how I came to teaching:
the Government of India started a new scheme
Technical Teachers Training Program.
The purpose is to attract young bright engineers for teaching.
Right.
In that way we - a few centres were
selected for giving training under this scheme.
Yeah.
College of Engineering Guindy was there, IIT Kharagpur, Roorkee University.
Right.
Many of the top students applied from Trivandrum
I applied I didn't know anything about this.
I have ... aiming for IRSC - Indian Railway Service. Railway service.
Then my executive engineer I was, short while I was in electricity board.
Right.
He said this is a Class-1 officer’s scale
after you finish - even if in IRSC, you will get only
Class-1 officer therefore, you please go.
Right, that was the motivation factor, yeah.
Then I joined - I was selected - I went to Delhi and I was selected.
I joined in College of Engineering, Guindy.
It is a 3 years program - first 2 years, part time teaching.
Yeah.
And PG, postgraduate yeah,
in that way I got M.Sc. Structural Engineering from there. Yeah.
And we also got teacher - teaching experience from USA -
United States aid program, some professors Ok.
were there, they also gave some lectures:
how to teach and all these.
Then, under this scheme Yeah.
the Government of India has to provide us lecturer post
after 3 years. It is a agreement. Ok.
But Government of India was not very successful.
Right.
Therefore, what my - I saw my seniors, Government of India has given
one of the technical teacher-training in Srinagar.
Another in Jamshedpur.
Then we thought, let us find out ourselves.
I, at that time fortunately, IIT Madras applied.
Yeah.
For post.
Yeah, 1964. Yeah.
I applied for the post.
Initially I was not called for interview.
It is the same old story (laughs). I met the registar at that time. Yeah.
R. Natarajan, IAS.
Right. He is very very excellent. Yeah.
I showed him I am first rank from Kerala University
and here M.Sc. Engineering also I am second rank,
but I was not called for interview.
Then he did something there and here and Professor Varghese
I met - he asked me to meet Professor Varghese,
HoD - Head of Department of Civil Engineering.
He - I met him, he said: see actually we didn't want any structural engineering.
Right.
That is why I didn't call, then I said this and - this is
then ok, no problem you will be called for interview.
Yeah.
Then interview call came,
I attended the interview. And that is history (laughs).
Interview was held,
Professor B. Sengupto was the chairman - director - at that time.
And fortunately for me, an expert is Director of SERC
Professor G. S. Ramaswamy.
He has specialized in shells.
Right.
My M.Sc. thesis was also in shells.
That way, whatever questions he asked I answered properly.
Right.
Therefore, he was impressed and I was selected for the lecturer course. Right.
I joined in September 1964. 64.
Yeah. And other technical teacher-trainees in IIT are Professor Ninan Kurian.
Correct.
He is my classmate in Civil Engineering
Professor V. Radhakrishnan.
Right.
Mechanical. Yeah. He is from our own college, same batch. You are right.
Professor P. K. Philip
like that we joined here. Right.
So, I really appreciate and admire the
candid facts of those days you've stated.
So, I would say the same factors could prevail today as it was there
which is also a very good reason for anyone not to lose heart
because I would therefore interpret that
you set your heart on something, you achieved it.
So, that’s wonderful... As I see, you have done your
Ph.D. in 1973 in Structures, again.
Ah - Yeah Then, I have a peculiar experience in the sense
I was in Civil Engineering Department for 14 years. Right.
Then with Ocean Engineering Department, 19 years.
Right. That way, first 14 years I will tell about my experience in Yeah.
Civil Engineering.
At that time, IIT had agreement with the West German government for
Sci- Collaboration. Yeah, yeah Scientific collaboration.
And Civil Engineering was alerted a little late
whereas, the other departments will - ahead Yeah.
in the Civil Engineering Department also
there, only two branches were accepted-
Structural Engineering and - Right. -Hydraulics.
Right. Hydraulics was given preference because one professor Rouvé was there.
Right.
And Structural Engineering, we were there. At the time, only 3 -
Ah, Professor Varghese was the Head of the Department. He was a
permanent head of the department, not by rotation. Right.
He was appointed as a - Right. -Head of the department.
and then he planned in such a way that
there should not be competition between the teachers. Right.
Therefore, he identified each area for each
so that no competition between people.
In that way, Professor Radhakrishnan - R. Radhakrishnan - Civil Engineering
he was asked to ... emphasize on structural dynamics.
Right.
Professor T. P. Ganesan was asked to do experimental stress analysis.
I am the third lecturer.
I was asked to do on steel structures.
Right.
He said there - there is lot of scope for steel structures,
nobody is doing on steel structures.
Yeah, it’s very interesting because I really want to highlight the fact
that you were (...) well established or - by those - by today’s standards
a well established Department of Civil Engineering
and then you came to Ocean Engineering
which was absolutely nascent or virtually non-existent.
So, I would like you to bring out what were the challenges that
you encountered, and which I know as your colleague later,
that you successfully overcame.
The transaction had happened like this The way you planned. Yeah.
In IIT - in Civil Engineering Department -
in IIT many people applied for the Alexander von Humboldt Foundation. Correct.
I also applied. Right - which you got. And I got selected.
Yes.
1977. Yeah.
I joined. I went to Germany. Germany, yeah.
Berlin, yeah
At that time, The Government of India wanted to start 5 centres, one centre each in IIT. Right. IITs.
Right. IIT Madras was asked to do on Ocean - Ocean Engineering,
IIT Bombay was asked to do on Resources Engineering. Right.
IIT Kharagpur was asked to do Cryogenic.
And IIT Madr- ... Delhi was asked to energy and IIT Kanpur, something else. Alright.
That way we were hired to Ocean. IIT was started, no,
IIT Ocean Engineering was started.
Centre. With a 150 crores Yeah.
For 5 years. Yeah.
And they brought Professor Mitra from IIT Kharagpur. Kharagpur.
who was the head of Naval Architecture there. Yeah.
He was the first head of - Yeah he is the father figure of IIT Kharagpur also
because he was the first naval architect I think in India coming from UK
And with his [inaudible] experience, he planned properly. Yeah.
He was the first Head of Ocean Engineering. Yeah, Yeah, Yeah.
Then when I was in Germany itself
the advertisement came for professor post. Yeah yeah.
Already Civil Engineering I was assistant professor.
Right. With a senior and all this...
then I applied from there because
I had training in - in- Hindustan Shipyard for ship structures
and there also I have gone for some 3 months with one professor
... in [inaudible] another professor. Right, yeah.
In that way all this is - that way, I was selected
for professor post in Ocean Engineering.
Not [inaudible] no.
No, [inaudible] is not. Yeah.
He is a professor of structural - steel structures - ship structures, good fellow. Ship structures ok.
Then I joined as professor there.
Yes.
And ... stayed in Civil Engineering.
Alright. Because Ocean Engineering building was not there. Yes
Then, there was given a few rooms. Professor Mitra was there,
myself, Professor Raju. Right.
He is the senior to me.
Yes.
We are appointed on the same day because I joined later.
I was junior to him. In that way we
started Ocean Engineering centre. The department, yeah.
Initially Professor Mitra planned everything properly
and we were very lucky to get German aid for Ocean Engineering centre also.
Right.
That is why we are in a, such a very good stage.
Yes, I just want to touch upon some aspects of that
because I came in the early '80s and we were colleagues.
Of course, you were already the professor there
and the amazing thing was this was a department
which was beautifully planned with facilities even before starting the
academic programmes or even the research programmes.
So, the creation of the wave basin was a challenge
or was something we could not have dreamt of
and today, historically I would say we have evolved.
Now, I would like you to touch upon the challenges that we faced
in having created the facilities - they were not so fulfilled in those days -
and how we resolved it, how that path of growth
from those days, late '70s to now,
how will you put it on the track?
... leaving alone the details, Yeah.
In Germany, it was given to Ocean Engineering researchers. Right.
After Professor Mitra retired, Professor
Raju was the head of the Ocean Engineering Department for 3 years. Right.
At that time, Professor Indiresan was the director. Director.
This German programme aid came towards '83, '84
that is, towards end of Professor Raju’s time. Time, yeah.
Then Professor Raju ... requested Professor Indiresan,
the Director, that he will continue
as the coordinator - for the German programme. Right. Right.
And Professor Raju and Professor Indiresan were - at very good terms. Right - Yes.
But I objected to that.
I fought tooth and nail with Director Indiresan. Yeah.
And told him that this is not a usual project
it was a project given by the German government to the institute. Yeah.
And it should be yeah done through the department Head only. Right.
It is not an individual project. Right.
Because no individual has submitted this project. Right.
That way, he didn't want to take any decision. Right.
Who? Professor Indiresan. He is- Indiresan, yeah.
That way he hesitated because my
argument was very strong, he could not say no. Right.
And you were talking for the welfare of the balanced
growth of the department. And he hesitated
and wrote action can be taken by Professor Sreekanth.
Right. Next Director. Right.
After Professor Sreekanth - Srinath. Srinath, yes.
Professor Srinath has come. I met him. Yeah.
I told him all these things. Yes.
Then I came and that way the head of department only has to
look after that, he told. Right.
At that time fortunately one German -
[Inaudible] was also there. Right, yeah.
In that way he was ... good terms with all the faculty and all this.
Yeah.
In that way, things went off.
Yeah.
And he planned for this multi-element wavemaker
there was objections for multi-element wavemaker. Right.
from some people. Yeah.
[Inaudible] we overcome that
and I also went with him to Danish Institute.
Yes, Danish Hydraulic Institute, yeah.
Who were the fabricators and installations - Alright. - for all these things
Everything was done properly. Exactly.
So, to put it back in a nutshell
what I would say is that that very positive intervention
has made the department what it is today after more than
35, 38 years
and another peculiar aspect those days was:
we had the facilities, we did not have the experience.
And let us say, we did not have the confidence
of how to utilise these facilities for research, for academics,
I think it's very important to highlight how we overcame that.
For giving - Yeah.
At the time one Professor Krupa - Yes. - Technical University, Berlin.
Yes, I was with him also there, yeah. And Professor Kraus
were also experts for us and Professor Chandy. Yeah.
Was called to... give us training there for some time, On the DAAD fellowship there.
so that you can use the facilities. Yeah.
And all these things. In that way, who else will... like that I have also gone-
few people were given. Yeah. Sundar was there. Yes.
Training and in that way it was not -
and from Danish Hydraulic Institute also some people came there. Yes.
Yes. Another thing is I had a Indo-German project with one Professor Kuriacose.
Ok right. And the multi-leg articulated tower. Towers.
One person also came here. In that way the transition was not bad. Right right.
Now I think that was a very critical decision that gave us a lot of self-confidence
because if I remember right. we used to search for a global expert
to help us in experimental hydrodynamics
we finally learnt that we are the experts ourselves. We grew the hard way.
You know there also I had a little bit fight. Yeah.
This Professor Krupa, German. Yeah.
I was in Germany, I know the system. Yeah.
There is what is called über Ingenieur. Yes.
In that way, all the work will be decided by him. Ok.
In the work shop, in the laboratory who should do what, all these things.
Right. That way they wanted to have a same system
over engineer, one over engineer should be here
and they met Professor Srinath and all this is -
I told him this over engineer will not work here. Right.
Here it is a democratic country.
Yes, He cannot act - our head of the department also cannot overrule -
Oh ok. - over engineer. That way I very, very much fought with him.
Yeah. That over engineer need not be there. Yes
The what is it called - wave time manager they called. Right right.
There need not be any wave time manager, everybody will continue like this Yeah.
and all will be having freedom to work, whatever it is. Yes yes.
The facilities and the expertise can be shared between people
and all this I have to struggle harder to argue with Professor Srinath.
Right.
Finally, he agreed. Yes.
you know I want to recall the genesis of Naval Architecture
in our department because
you know, I mean you should share with us
how we... So, I was in Civil Engineering at that time. Naval Architecture was there
even in Naval Architecture, in Civil Engineering Department
Naval Architecture was not given any proper- Yeah.
figure and it was consider as a second grade department.
I think we started as a conversion course for the
Cochin Shipyard - Engineers, Cochin Shipyard and all.
giving them a degree in Naval Architecture. Yes. Degree people with.
Our some people came here and there. Right.
Right that was the beginning. That way it was going on, yes.
Then when the Ocean Engineering Centre came, Yeah.
Still they did not want to be here yeah initially. Right.
They had academically, administratively, very difficult problems
that way Professor Indiresan appointed
Yeah Professor Right.
Very senior naval architect to look after the -
Yeah Ocean Engineering, no, Naval Architecture section. Yes.
And he was - He was from Garden Reach Calcutta right.
He was sitting next to our - Yes yes.
He was there for some time, but still the problems were not solved. Yeah.
And these people fought with him and all such things. Yeah.
I think we had just 3 colleagues in those days
to teach the entire Naval Architecture programme.
And Ship Structures I used to take. Yeah.
And these people ... sometimes will take and will not take
in that way I got help from Swaminathan of Mathematics Department. Mathematics, yeah.
For wave - Seakeeping and. yes yes.
That way smoothly I took. Yeah Then, Ghosh Roy left. Yeah.
Then Professor Indiresan said I will be looking after administratively
for the Naval Architecture and ... Naval Architecture
In toto has come to Ocean Engineering. Yes.
In that way I also consoled Sambandan. Yeah.
Who did M.Sc. with me and all this. I had good terms with him. Yeah.
Of course, with also.
And he was made co-project coordinators for two or three projects. Yeah.
So, that his importance need not be - left out. Yes. Yes.
In that way they became smooth.
Yeah And it has become a part of the Ocean Engineering Right.
Centre as B.Tech. Naval Architecture came
and now I think it is called B.Tech. Naval Architecture
and Ocean Engineering. Ocean Engineering, which is
more to - that way it has merged totally with Ocean Engineering. Yes.
So, that's where I would say that your contribution - key
contribution - was bringing together
what was a Naval Architecture division under ocean - under Civil Engineering
back into the mainstream of Ocean Engineering
and today, of course, we are all harmoniously working
so. Cold War was. Yes.
stopped. Yes, exactly that is what I am saying.
So, I admire I want to bring it to record the vision that you had
in bringing, because although Ocean Engineering
is a multidisciplinary department
we had our own problems and issues in this coexistence
and growth and everything.
Now, I want to touch upon some other aspects of those days
when Naval Architecture again was at that nascent stage,
I know that in your career while you were a
full fledged faculty and professor
you chose to go to the industry voluntarily
and spend 6 months, please tell us of that incident and experience.
See, I was asked to do on steel structures. Yeah.
That way I did.
Professor Varghese said steel structures here nobody else is doing anywhere
that way it will be very good if you go to
Bharath Heavy Plates you know HPVP. Yeah.
They are making this. Pressure vessels.
Yeah. Pressure vessels, spherical tanks
and all these. are making this for sometime there
and also Hindustan Shipyard where they are
fabricating ships. Ships.
In that way 6 months yeah he asked me to go there, yeah I went there and
I had a good fortune to have friendship with
Sambandan, Sambandan was there at that time. Right.
And other two. Yeah.
Misra and. yes other such people I stayed with them.
Yeah. I studied very well. Yeah.
How the structure is fabricated and how
that ship structure is nothing but a structure like any other.
Absolutely. But the loads are different.
Yeah. Loads are different by end sea loads and other such thing.
You just said that ship structure is nothing but just like any other structure
now this is one thing I love about the way you were teaching
that you could simplify many otherwise difficult concepts.
I remember being a student in your own class,
that you always made a subject look very easy.
To me that is a very important hallmark of a teacher.
So can you please narrate any incidents that may occur to your mind,
your interaction with the students,
did you always have a smooth time with them, did they really challenge you,
did - is there some incidents?
Yeah. Positive or whichever way.
See, after my retirement I was in Nagercoil. Right.
And there is in Tirunelveli some colleges are there. Yeah.
They called me for giving some lecture one day. Right.
And there a principal - no there principal is - was
He - he has done Ph.D. in Hydraulics. Right.
That's all I knew. Yeah. Of course,
good friends and all. Then when he addressed the students, he told
I taught him the Fortran language.
When I was in civil engineering, I took computer programming for the beginning. Yeah yeah.
He told, I know I knew computer programming only through him
and he took us Fortran language, and that was surprise to me.
I see he recalled the fact that you were there, teaching them. Yeah
And even our - Heritage - our CEO. Yeah.
he is, Kumararan yes yes. And he has written a email to me yeah.
That I attended your class on plates and cells.
Kumararan I mean
Yeah. Which was good and he has took.
Yeah, he was in the early '80s there. I met him. Yes yes.
Yes he was our student in the early '80s.
So, he is been here enjoying this job yeah
Like that some...
So, I again recalled because when I came to the department in '82
and joined the faculty, the early days.
'82 I was [inaudible]... Yes yes.
So, the early days were the days where you could hardly find
any vehicles in front of the department.
I remember seeing a Fiat car in front of the department,
we professors used to proudly owned our cycles and use them
for that matter, Professor Indiresan himself was on the cycle.
So, days have changed.
So, I would like you to touch upon the nostalgic aspects of those days
how - how were the camaraderie between colleagues,
you remember we used to have a tea room there.
Yes yes.
So, the, the - See about the vehicles: I used to come to IIT by my cycle
then towards the end I had this Luna. You had a Luna of TVS yes.
Then 1 or 2 years before my retirement I You had a Maruti, I know, I know.
Still I have in my house. Yes.
Then we - I always - we wanted to be together. Yeah.
That is why we started a coffee club. That's what I am saying, yeah.
And I - I know many people, they will bring the coffee (...)
professor or HOD or whatever it is.
He will bring there and Yes.
But I will never do that yeah I went there and
I will eat. That way I used to meet everybody. Yes.
Now the coffee club was a very important place to meet.
In fact, we even used to discuss in the faculty meetings
the issues of the coffee club, you know. I also used to take charge of that.
So, what I mean is it was a good fraternity of the
department in those days, yeah. And yes, faculty also went for one outing
Professor Indiresan also came. Absolutely. See, after Director post, Yeah.
That also ... incident ... after director post. [Inaudible] Yeah, yeah.
He did not want to go to IIT Delhi. Delhi.
Or something ...
... I don't know Yeah.
but he wanted to continue in IIT Madras. Yeah, yeah.
Being a Electrical Engineering professor
he was having some problem with Electrical Department. Right.
That way Ocean Engineering. Yeah accepted him to be here.
Yeah. Because he had that ocean energy project.
Right. He was - he gave ideas to Professor Raju and Professor Ravindran
that way all the 3 were, in that way I, I was called by the - the - then deans.
Yeah.
Professor Prithviraj and Professor Kuriakose. Kuriakose yeah.
Yeah. And they had, not they - somebody had some bad
thinking that I will not accept Professor Indiresan.
Oh, oh, ok. I will being ... I being head and all that. I told them, I will never do such things.
Right. He is always welcome, you forget about all that then. Yes.
That way he came Yeah to Ocean Engineering.
And when he left,
he thanked me and he said: you cooperated with me always.
Absolutely, I remember the days when he was our colleague also, yes
yeah And if he was given full freedom to continue the Ocean Energy Project. Right.
All these things. Yes.
Yeah, where he also had a stint in Germany for a couple of years
I think. I have met him there.
Now coming back to our subject area and ocean engineering today.
I just wanted you to share on a more global basis
or more on a national basis
that those days we all used to go abroad
for these collaborative programmes and
short and long-term stints there.
I always remember China used to send huge numbers of their
researchers to the West - to the Euro - to Europe, to Germany
and they were received in a big way.
And today after about almost 40 years
we have seen the transition of China which is a fact.
Now as Ocean Engineering Department
and with our interaction with the industry
how do you think we can take a leaf - I am not trying to say
we should copy China - say, how do we take a leaf out of this -
what kind of advice would you give,
that - how do we intensify the benefit of these
abroad stints where we get back something,
how do you think if we had an ideal scenario
that this could transform our industry into a
larger entity than what it is today.
See first of all, the industry should have an open mind to come to us. Right.
They came. See, even now I will not say no. They have come. For example,
Defence. Ministry of Defence for that ... just to give an example. Yeah.
These INS Vikrant was there.
Ski jump. They had the - they had the normal planes. Yes.
When they got a Harrier aircraft. Right.
It is heavy. Yes and it should have ... longer runway. Larger runway, right.
Larger runway is not possible therefore, they wanted to give a ramp. Ski jump.
That way they asked to descend the jump - ramp
so that the turbulence should not come. Yeah.
That project was given to us. Right.
We did it successfully with Professor Chandy
and [inaudible] was the Director General of Naval Designs. He came there
and - and the Chief of Staff also visited.
Chief of Staff also visited and they were very happy with the - Right, right.
similarly, this ISRO. Yeah.
In fact, sir, I would like to touch upon or stress on the fact that that Vikrant project
the creation of the ski jump was a wonderful
state-of-the-art creation by this department. See, I am not a
expert on this turbulence. Yeah.
But I saw. Yeah. Professor P. S. Srinivasan was there in the fluid mechanics. Yeah.
At certain stage, this- that wooden pieces which was - such - vibrate. Right yes.
[Inaudible]
That way they found out some such things and all these things.
See, it is a beautiful thing that somehow the navy had the confidence
to go by the tests and investigations that the department
conducted and implemented. That only now they are having that - Right, alright.
Naval Research Board or something. Naval Research Board. Yeah, yeah.
So, I think that's a nice example you have given
which is in a way an answer to the question I asked earlier
that we - do you agree that we need to be doing this with much more intensity
because nothing builds like success, nothing succeeds like success
you know? Yeah. Similarly there is ... ISRO. Yeah.
See this PSLV they are sending. Right. And we saw... capsule falls. Yeah.
That is left there itself.
They wanted to see when the capsule falls what will be- Recoverable. -the vibrations
Right. Whether it is got - got - spoilt or it will be floating. Yeah.
That way we did experiment with Bhattacharya.
Yeah, I know, the reentry. Yeah, yeah, yeah, yeah. Yes.
We two also did some software - We have done. And inland waterway. We have done, yes.
Yes. I do not know. See, the faculty should go
far away to ask. Yeah. Now I see in the newspaper; as a retired person
I am reading: inland waterway is very very important. Some fellows are telling. Yes.
That way we have to go. See, we are having expertise,
we will be able to solve many problems, we have to tell. Yes.
But if teachers are in their ivory towers, nobody will come. Yes.
I think I'll be happy to state here now
based on the foundations that our predecessors
have laid including you of course.
Not like that... Today our interaction with the industry is quite intense.
It should be.
So, yeah of course,
if you visit the department you will see the amount of activity
we have with the shipyards,
national, international, yeah. And we should tell them: see we are having these multi-element wave maker, Yeah.
Using this we can do so many things. Right.
For example, Naval Physical Oceanographic Laboratory.
Laboratories yes. Underwater cable... it's all very very
important defence-oriented projects. Right.
On the look, it will be looking nothing. Right.
But these are all very useful. Yeah.
That way what will be the configuration of the cable... Right.
And vibration will take place... Yes.
Or what should be the force...
all such things we need some projects like that Yeah That is ...
we - people are going for - and Orissa and that port. Right.
Gopalpur port. Yes. Gopalpur port, from there all the way he came. Yeah.
Even now the approach trestle is constructed there... with our design . Absolutely, absolutely.
It is standing and Sundaravadivelu is still continuing as -
And Sundar and - Yes, he is the expert on ports and harbour structures
and Sundar and company - Another, another - - they are the experts on break waters.
which I will say my contribution is
I started this user-oriented M.Tech. program. Absolutely.
Yeah. For port engineers. Money was given by them.
Right. That is according to me it is the first-user oriented in IIT
Madras- program that you started.
They paid money. Yeah.
And their engineers came here and our syllabus was slightly modified
or electives are added which will be useful to them. Yes.
In that way, user-oriented...
and that is the starting point for the present user-oriented you are having
2 or 3 petroleum engineering - With L and T. L and T. L and T. All such things, yes.
we also have a program with NIOT.
User-oriented program for M.Tech. in Ocean Technology. Yeah.
Yeah, that is true.
So, I think people today should remember that
our predecessors have done a lot of wonderful foundation job
which anybody would have done,
but the important thing is, this kind of visionary,
No visionary - steps -
They should continue the project without any selfishness. Yes, absolutely, yes.
During my Headship. Yeah, I never took a single research student for myself,
because people should not say being Head, he has taken by all these things. Yes.
Yes. In that way for 4 years it is a webworm.
I would recall this personally in the case of many of our colleagues
where you saw to it that they are taking and guiding and
you know, producing the - or at least guiding for the Ph.D.s
in a time-bound fashion because I remember your cautionary statement always
that if you don't take care of yourself -
And you used to provide the most important impetus for that. Yeah.
Looking at - looking back at all those things
I just wanted to ask one more thing,
would you like to have a message to our colleagues today? No,
Please don't say no, because I would like to say, No-
Messages should be always given and old people will give
No, I would like to receive it with pleasure. Yeah.
See what I get - get an impression is nowadays many people are selfish. Yeah.
They feel they want to improve their own biodata
without bothering about the progress of the departments. Right.
That should be Yes.
And we should collaboratively - unity should be there.
Yes. Or cooperation should be there. You should have Right.
another person who is in another area, whatever it is. Right.
And do some projects; we have to go out of the way
and inform the ministry, no, departments
see we are capable of doing such and such things. Right.
Right. Please come. Right, yeah.
So, that would be the key to success, the key to collective growth, yes.
See, Team effort. Yeah For example,
yes, this is a, this - MRPS, MRPS something is there, no?
Right.
They are exporting. Yes.
They made, but unfortunately it is not satisfying the
international standard because there is a small gap. Yeah, yeah.
Myself and ... Chandy Yeah.
Visited there.
and they are applying the pressure - liquid pressure - everything, everything is same,
but when the - and temperature is there volcanizing.
At the temperature, it - it expands.
Yes. Therefore, the metal comes out. Okay.
That way we gave a solution that - this should not be done like that.
That way they did and that way the projection was not there.
Nothing to do with Ocean Engineering. Yeah.
But still. Yeah. Because of the experience in the - see,
Chandy did for this integrity monitoring using ... artificial... Of the structures.
Yes. Neural network. Yes.
All those things has helped us to -
and we got a project from ONGC. Right.
For the- Integrity monitoring of the structures. Artificial neural network
for integrity monitoring of structures. Right. Monitoring of structures.
We did an experiment. Yeah. It was quite good, we made a jacket tower.
Yeah.
Measured the ... dynamic characteristics. We cut it. Yes.
Damage, yeah. Then there the it can be shown, see.
And this can be identified by our ANN or software like that.
Yes, yes. We have to convince them. Right.
Because managing directors are not experts. Experts.
in, in that way
they can see this, oh, these fellows
they have some ideas, etcetera, they should know. Yeah,
I ... think that is a very important hallmark of our department
because we have been interdisciplinary. Because we have to come down. Yes,
We have been interdisciplinary for example, just to briefly share
I am doing a work for the defence related to the
ordinance factory, the infantry combat vehicles.
Because they are going to be amphibious.
So, as you said it is not a ship. Yes.
But then the moment it's in water - Land also it will come and - Yes.
So, you know, with that kind of a open mindset
we have been able to collaborate
very effectively with the industry. And they are the apt people for designing that hydrocoil.
Yes.
Nowhere else; except IIT Kharagpur, nobody else will do.
Exactly. Hydrocoil designing.
Exactly yeah.
Structurally, you can take the help of our people. Right.
See at the time ... there was a proposal to
buy submersible by the government.
Central government. Right, right. There were some meetings
I was also asked to attend there by some people
but fortunately the cost was very much. Enormous. The secretaries
decided not to buy yeah that way submersible ...
bought. Could have been bought, yeah.
...I should not forget to touch upon another aspect. Yes.
Because we were at a time not having all the experts for all the subjects
because of the highly interdisciplinary nature
of the syllabus of our programmes.
And I remember how you led from the front by taking on courses
in the undergraduate level and with that example
you saw to it that our colleagues also take on courses.
We had courses like mechanical handling systems.
That is exactly what I wanted you to touch upon
you know just for the benefit of the- See, mechanical handling department I had a good rapport.
With Professor Parameshwar no. Because I took there - what the design of the crane -
Yeah.
Which ... it was a M.Tech. course, two courses are there.
Mechanical Handling 1 and 2, I took. I was taking that
That way, I can ask them to - shipyards and all such things Two courses for this. See, Parameswaran was very good that way
he did. Right. And we got some projects, Chitram crane company Cranes.
and all these things. Who set up the crane in Cochin shipyard, yeah.
And Professor Parameswaran used to design that gear and all this. Right.
The structural things. Right. I used to do and
fabricated and it was - So, you know it was a.
- Mechanical handling Yeah.
For only marine, of course, Vijayan helped afterwards I do not know
our people themselves - Yeah we had. We had - had studied and
Mechanical Engineers also joining us. Yes. And ship structures, I was taking.
Then Bhattacharya studied, Right. And we were taking. Like that
each man prepared themselves to - That is what I am saying, so the
the most important aspect was that we had the courage
and we did the hard work and we solved our problems
and we gained in confidence.
See. Yeah. Now, if you see none of us are experts on anything.
You take Professor - Sundaravadivelu too
now he is doing in coastal structures, ship structures,
not ship structures, boat structures, etcetera. Right.
By experience, experience, experience he gained. Yeah.
Structures are structures. Yes. Then
how the loads come. Yes. That way, similarly yourself.
Yes.
Or Sundar. Yes. Like that, like that, like that, we study and bring it.
So, I think that is very important. That is - that has made a good difference in our approach
to handling our problems taking our teaching. We could have easily said, no sir exactly this is not our
area, we cannot run - Yes.
or look for another colleague to be hired. Yeah. To get M.Tech. Ocean Engineering,
We have to fight like hell at that time. Yeah.
To start M.Tech course engineering. See, there was opposition.
Some unwanted opposition: a centre cannot start a M.Tech course.
Right. It has unfortunately our name was called - Ocean Engineering Centre. Centre.
Right.
In that way I met Professor M. C. Gupta, Dean of
Academic Research. Right. He is that - etcetera, etcetera, etcetera,
everybody helped us. Correct.
Yeah, I think we have -
Only reason why Ocean Engineering Centre is
thriving now is we had this educational programme -
all other 4 IITs, it's went down. Yeah.
Yeah. Resource Centre, in IIT Bombay Right.
Nothing is there, Right. Except maybe 1 or 2.
But here we are having a whole - entire department by
that 150 crores, Yeah, it is a full-fledged department, yes. Which was
started by Nayudamma Committee. Right, right.
Then cryogenic. Right. Cryogenic is there,
but not as a department and all these things. Exactly.
Because we had this academic program, we were successful. Absolutely.
and I think we had the vision and open mind. And how we have spread. Yes.
Yes. ... some petroleum engineering, Yeah.
that, this, that, etcetera ... many things.
Yeah, today we are so busy and so full that we don't have the space
and of course, IIT is expanding.
So, we have solutions for going into
more common academic complexes and
you know, spreading out a bit in the institute.
So, I am so happy that...
Ah, then, You could recollect. About other than
academic programme what were the...
I was a warden in Saraswati hostel
that is all normal. Right. But how
some students came sir you helped me lot
and all this, that is all normal.
Then as Engineering Unit, Chairman - that was a
good post. Professor Natarajan was the Director. Yeah.
He gave me a very good appreciation. Yeah.
And all this. Though I opposed
a little earlier when he was not Director. Yeah. There is a - there was a proposal
to have a guest tours for IST.
Indian Society for Technical Education,
which had good rapport with somebody ...
Yeah. They wanted to have a guest house near
some prime location. As a Chairman of Estate we discussed.
And the Senate I opposed tooth and nail. I see,
It was to be within the campus or?
It was to be within the campus. No, I suggested it is very good to have a guest house,
but you have it above the NCC building - NCC building or something
there - You are right. not a independent guest house. IIT is not meant for giving
guest houses, etcetera for others. Right. Right. I told.
Then when I came out from the Senate room, one or two colleagues:
how you can tell like that
to the director?
It was very very good what you told, but it was very dangerous.
Again, again, now that you - it just takes my mind back to some other aspects
I would say you never hesitated to call a spade a spade.
You know - See, after going home - Professor Natarajan called me. Yes
At that time he was not director. Yeah.
He was IST Chairman or something like that. Right.
He told hey, why, how you're giving a space for ICSR,
but you refuse to give for IST. Yeah.
I said ICSR - ah, NIOT. Ok.
How you are giving NIOT space in IIT. Space, but not for IST
Yeah.
Why do you want to compare NIOT,
Government of India is giving a lot of money for the IIT
and the department, IST what they will give?
Yeah. They will come and go.
Chairman will come and go stay there.
Correct. For 2 days and go away. Right.
How can you compare like that? Yeah.
The same Director has given very good appreciation after my...
Which meant you - you had the.
No. Conviction to - to hold to what you felt was right
and it was proven right. That's more important.
See, there is space in the NCC building first floor, second floor,
third floor, we can construct and leave it. Yeah yeah.
And again to put it on record the same NIOT has today blossomed into a huge
institution with who we are very closely interacting. Yes.
Thanks to the very positive attitudes we had with them.
Yeah, again to recount, during your chairmanship of the
engineering I always thought or always observed
that you always went into the details of small things. For example,
in between the main gate. Yeah.
In-gate and out-gate there was this thorny bush. Correct.
Right. Before were they were trying, trying, trying - it was not
it is having a very environmental problem it will never get destroyed.
Exactly it is very pernicious. And it will not allow other plants
to grow. Right.
That way I gave contract and I assigned; it was completely removed
not only there, even near the hostels. Yeah.
And now it is a very good garden. Yeah. In between there
and also now is not to be seen.
Yeah, yeah, of course, it was a recent issue that people even went to court
how IIT could remove it and all, I think we have amicably resolved it.
No it will not allow - Yeah it is a very
pernicious plant - other plants to come. Exactly, exactly
Now, I remember because even those days
you know we have this peculiar problem of
so many banyan trees in this campus
and they would grow invariably with their seeds on buildings
creating crevices.
So, I remember in your time you had a mission
to remove them from all the buildings
because it was ruining the buildings eventually.
Not Yeah, which comes under the - yes, exactly,
so, it's always very important
to look into the minute details which makes a big difference.
See for example, this - Yeah. Right. Speed breaker.
Being a Civil Engineer I went to IRC, courts are there
how it should be ... marked. Laid yeah.
Yeah. I insisted our engineering unit to see that IRC
marking should be done on the ... speed breakers. On the speed breaker yeah.
They done and it was, Yeah yeah yeah yeah.
Previously, it was in a something else, ... laying on something. Yes, I remember, yes
to standardize it was taking a long time, yes.
I think one of the hallmark developments in our country was the
pioneering development that we did with regard to
wave energy in this country particularly with regard to the
oscillating water column and putting up a demonstrator plant at Vizhinjam.
So, if you could please tell us the genesis of that and how it went ahead,
the problems that we faced, how we resolved it, yes. I didn't resolve any problem.
See, wave energy is the brain child of Professor Indiresan.
Indiresan yeah.
It is very layman's approach type.
Yeah. See, when the energy is there, why not we
In that way at that time we had that 4-metre flume.
He took 2 drums.
Yeah. This - and the when the wave passes
it will move up and down. Oscillates, yeah.
And then it will have some ... and like it was bending and all these things. Yeah.
Yeah. That way he was convinced it will be very...
Right.
And there were there were many professors in IIT, not our Ocean. Right.
They said it doesn't satisfy the equation and all.
The energy. Thermal. Yeah.
Equilibrium itself.
Yeah. It doesn't satisfy the laws of thermodynamics, it will be a failure,
they told. And of course, they would have suffered also,
perhaps Professor Indiresan would not have liked it.
Then, then and that way, but; however, we had our Professor Raju
and Professor Ravindran. Right.
Who, when, Ravindran being a mechanical engineer, Yeah.
they were doing a lot.
And we are - as a department, we gave all the support. Right.
Though I never got involved because it is not my area. Right.
It is area of Professor Ravindran and of course, Professor Raju
also, in that way it was going on. Yeah.
And fina- in ... they made a prototype. Right.
On that they got money from the government - central government,
the real problem as I see are ICSR at that time.
It is false, fluctuating. Fluctuating.
Energy. Right.
Therefore, if you take an average it will never be useful.
Ok. It cannot be converted to the
Sustained useful. Sustained useful conversion into energy, right.
... but I see because of that they should not leave. Yeah.
They tried their level-best with the prototype also. Right.
But it was not really successful. Yeah
possibly it was technical, but not commercially successful. Yes. Yeah.
I mean. Yeah. And another thing they wanted to do ... ocean thermal energy.
Right yeah. When there is difference between the depth
Yeah.
Here the- Surface water, yeah. Temperature is less.
And they brought a scheme in Lakshadweep we can have.
Yeah. Shore-supported ocean energy. Right.
Etcetera, etcetera. Right. But I didn't see that as a commercial.
That is true, yeah. It didn't come up.
They, I don't think they have created directly electrical energy
or power out of it but I think they have been using it for desalination
using the cold water from the bottom and the surface warm temperature
and running a reverse refrigeration cycle or
flash evaporation yeah. In this case, it has not reached a commercial point. Yeah
Possibly the place Lakshadweep you can justify
because they do not have any choice yeah. But at that time still they are telling
nothing is coming up. Yeah. They could - see, as I told. you should convince the
decision-maker. Right. They should
go and tell the decision-maker, whoever it is.
Right. Then if he is convinced he will say,
there if it has not come, the mistake is you should not - we have not. As clear yeah.
Or it is not capable of. Correct, correct, correct, yeah.
When coming to the GATE. Yeah.
See at that time Common Entrance Examination for Postgraduate Admission.
CEPA. CEPA.
Other IITs were joining with our IIT for a few periods. Right.
then they said, no, no, we are going away. That way our IIT continued.
And we conduct the exam
we publish the results. Yeah.
Based on the result they used to give admission also. Right.
CEPA, that is - So, CEPA was the prelude to the GATE.
GATE. Yeah.
Just above before we stop.
Yeah. I was the controller - they will appoint a controller. For conducting
And joint-controller. Right.
Joint-controller will be controller for next year. Right.
That way, like that, last class
I was controller and a joint-controller was
Professor Padmanabhan - K. Padmanabhan Metallurgy. Metallurgy.
Right, yeah.
That way, when Professor Padmanabhan became
controller, at the time itself, GATE has come.
Right. And it was stopped and it has
...transitioned to - GATE Transformed into the GATE. Gate, right, right.
Yeah. It was a very, very tough job. Right yeah.
Secrecy is so much. Yes.
Secrecy is so much. Yes.
Even for the proof correction of question papers.
We should not get the ... help of others. Yeah, right. All such
things were there in that way, our IIT did very well. Yes. Even today
JEE etcetera is done at the topmost, secretly. Yes.
Yeah, definitely, there is an example of how to conduct an exam
and how to take on the aspects that there is no league,
there is no malpractice, there are no mistakes
and I know it is a nerve-racking thing.
So, you pioneered the CEPA and then it became the GATE. No pioneering
I was - It was a - It was running on.
Was it already running many years? I see.
4, 5, 6 years. 4 - 5 years ok. Yes. So, it evolved
ok. CEPA, it was called. Yeah, yeah, great.
Because of the experience, GATE came. Yeah. Yeah.
Similarly at that time JEE also we did for the first time
civil engineering, I was.
The chairman was Professor Varghese. At that time, JEE. Yeah.
So, and I was involved in JEE many ways.
...so many days. Right.
Then, till then the rank is by mechanical - manual.
People will find out, you will call the number and then
then - at that - when Professor Varghese was the chairman
he said, they decided, why not we use the computer. Computer, yeah.
The computer - you cannot asked, I didn't tell. About IIT Madras, Yeah.
When I joined, Professor Sengupto was the Director. Yeah.
He isn- people say, he was of the opinion. Yeah.
that my engineers need not have to go to computer they should use the slide rule. Right.
That way he said no computer and he didn't come at all.
And many people were interested to do. Right.
Then we used to go to College of Engineering Guindy. Right.
They had IBM 1620. Right.
And when this JEE ranking came
we prepared the rank, student mark.
Right. Student mark, each card punching - myself and Professor C.
S. Krishnamurthy. Right.
We punched all these things, all secret. Now
you should not tell this has spread - and then we went to
College of Engineering Guindy. Ok.
One minute, it will come.
Yeah ok. Test will sort out.
Right.
And we will took the print out and gave and
it was useful - like that, the computer.
Was slowly initiated into the process. Yeah, yeah, wonderful.
And when Professor A.
Ramachandran came next to Professor Sengupto,
first thing he did was to get IBM 370. Right, yeah.
That way, things move. That was our very fancy, high-end
system in those days, yeah.
Wonderful, sir, I think- Thanks. It's been my great pleasure to touch upon
all these aspects and
I'm so happy you could share your experiences
which will be a great
pleasure for viewers of this series
to learn of the heritage of IIT Madras, the transition from those days
of course, we are still a young institute
less than 70 years right, 60 years yeah.
Just like I am young, said to be young. But I find you absolutely young at heart.
Most wonderful.
Thank you very much for - bringing Yeah thank you so much.
out all the details. Yeah, thank you so much. My pleasure.
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Dr. Vikram Rao in conversation with Prof. Mahesh Panchagnula
Hello, we have today ah Dr. M. Vikram Rao,
who is a 1965 graduate,
one of the earliest batches, in fact, the second batch.
So, Vikram tell us a little bit about - about yourself
and what it was like getting into IIT Madras
and describe the day you actually came in here if you can.
Well, in the back - back then we did not have a JET
the - the joint entrance exam
and we so, we all had interviews.
So, we - we were examined on the basis of our marks
and we had interviews.
And I still remember that my first interview
included Professor Koch,
he was a German Professor and - and
and he was - he was asking me what did I do,
what were my interests and I said gardening.
And I think he wanted to be sure,
I - I think they accepted something more erudite,
but they did not get it.
And so, he wanted some examples of - of flowers, okayay.
And so, I threw some out you know and then I said roses;
he said: Oh! Roses, when do roses grow?
So, I said: oh mostly in winter, all the year round, mostly in winter.
Later on, I realized
that that is absolutely the wrong answer for Germany
but it's the right answer for Delhi. [both laugh]
But I got in. [laughs]
Nice. So, which hostel did you live in
[Prof. Mahesh] and there was of course, only Cauvery at that time. [Dr. Vikram Rao] Yeah so, that's
an interesting one: we were the second batch,
but we were the first hostel residents of the campus.
So, we were all in Cauvery at that
time and we were - we had roommates
and then ... second year we - some of us shifted to Krishna
and the 64-65 rest of them;
the 64 people who were out in Guindy, they came.
So, we used to remind those first batch people
that as far the campus is concerned, we were the first batch.
Because we were the first residents.
And what was it like to go to class on the first day?
[Prof. Mahesh] Did you walk, bicycle what was - and what was it like? [Dr. Vikram Rao] Yeah,
All the classes were held at AC college
and central research lab
CRL we called it, I guess central research lab.
And - and we were taken in a truck and I - I thought that was neat
because we had these nerdy elite students
coming to AC College in a truck.
Oh yeah, I mean it would have been a completely -
they would be expecting somebody in an air-conditioned bus
or something, okayay?
[Prof. Mahesh] Yeah. [Dr. Vikram Rao] But we came in a truck with hands - slide rules in the hand,
it was fantastic.
[Prof. Mahesh] Nice. [Dr. Vikram Rao] Yes, it was very nice,
I mean it made you - brought you down to earth;
you know, that you were regular guys, not the select few.
Talk a little bit about classes at that time;
was it lecture, did you have discussion time in the class?
Yeah, so, the - the classes were - were lectures,
there was discussion,
there were something called surprise exams
which didn't last more than one year
because they were very unpopular
but I still remember one class...
see, there were no - there was no air
conditioning of course, okayay
and there were fans, but kind of depends upon
where you were and so forth and
I still remember Professor Koch,
the same guy who asked me the roses question,
sitting - standing in front of us in CRL in a classroom
and just perspiring, you know, his face was red, [Prof. Mahesh Panchagnula laughs]
his handkerchief was completely soaked to begin with
nd he was trying to - [Both laugh]
I don't know how these Germans survived our summer, but.
So, it was difficult to concentrate in that heat
with a little bit of fan that might be running.
Sure, wow, you came through with all of -
with all of those hurdles
and classes started booming into campus
[Dr. Vikram Rao] They moved into [Prof. Mahesh] here in
[Prof. Mahesh] your second year or third. [Dr. Vikram Rao] campus second year.
[Prof. Mahesh] okay. [Dr. Vikram Rao] Yeah yeah, second year.
And that would be BSB 105.
Yeah, it was, yeah and I think
of course, no AC yet as I remember, but there were good fans.
okay good - good.
So, tell us a little bit about the administration
that was running the campus at that time, the Head, Sengupto.
Yeah, So that was interesting, we were Madras campus,
Madras in those days, although we are still IIT Madras.
[Prof. Mahesh] We are still IIT Madras, correct. [Dr. Vikram Rao] [inaudible] brand, okayay.
You need to correct these people who say IIT Chennai
and yet, we had a director who was Bengali,
[Dr. Vikram Rao] which I thought was impressive, yeah. [Prof. Mahesh] okay.
And the - the administration was amazingly
tolerant of behaviour from us,
which was of course intended to be humorous
[Dr. Vikram Rao] but nevertheless sometimes borderline disrespectful. [Prof. Mahesh] Yeah.
And I - I still remember this very interesting
incident with Professor Sengupto,
who was the director and we - we had a strike, okayay.
Now, you know, rest of India, students strike all the time,
we didn't know how to strike.
okayay, and we were not able to consult the
the professional strikers, okayay.
So, our strike was for water;
I don't remember: not enough water or what,
but it was - it was water, and we didn't go to classes.
Oh that was your strike
[Prof. Mahesh] not going to classes was your strike, okay. [Dr. Vikram Rao] Yes, okayay.
So, Professor Sengupto came ...
and he - and - and he said, he was angry, okayay,
and he did not use a mic,
he could have been heard 2000 yards away.
And - and he said: "You people,
you think you are the cream of the Indian high school system;
you are not the cream, you are the scum, they both rise to the top". [both laugh]
So, of course, in the next issue of Campastimes,
I got Saha to do a caricature of Sengupto.
Well, he is Sengupto, but with a blue face, okayay
and he was stirring this thing;
he's saying "This is not cream, this is scum." [both laugh]
And then I wrote - I wrote a piece with it,
this is the closest I came to being dismissed -
Me and Saha, although I put him up to it, so, I could be blamed.
[Prof. Mahesh] Yeah so... [Dr. Vikram Rao] So, they put up with it, that's just the thing, okayay.
[Prof. Mahesh] Yeah. [Dr. Vikram Rao] They realized it's all in fun
and really...you know, anyway, they - they put up with a lot
[Dr. Vikram Rao] Yeah. [Prof. Mahesh] I'm sure.
[Prof. Mahesh] So, yeah you mentioned Campastimes, I think. [Dr. Vikram Rao] Yeah.
So, you are one of the - you were the - among the
founding group of students
[Prof. Mahesh] that brought this illustrous piece out. [Dr. Vikram Rao] Yes. So, I was one of them.
Yeah. So, Professor Klein who was a German professor,
who also had a Ph.D. in Sanskrit;
we got together and said we need some kind of
a published organ
and we came up with that - it sort of grew
... and the name came from a sandhi of campus and pastimes.
And so, it's called Campastimes,
people mispronounce it all the time but we cannot be helped with that.
And it was published - on a - Anand Singh Bava was the editor
and Diocesan Press published it,
printed it and Klein was the publisher, I think.
And ... we just sort of had fun;
we would - we would have these production meetings
when there - there wasn't - there was sp - blank spaces left.
So, one of us would fill something in and so, you will see there,
there are fillers with no initials on them,
that's usually, probably us just filling in the blanks.
And who - how did you go about getting the content to go?
I mean, was there a formal process or you just,
how many students were involved in it?
I would say, in terms of contribution,
total would have been about 15 students and
no, there was no method to that madness, yeah,
a few of us would ... and we came up with newer and newer things
when we ran out of ideas. So, Cup of - Over a Cup of Aye Aye Tea (IIT),
was somebody, I think Siddhartha who
got on that idea: Over a Cup
and then somebody said "Oh, IIT" and - and then divertissements,
which is so easy to write for.
[Prof. Mahesh] Yeah. [Dr. Vikram Rao] All of us wrote for divertissements,
[Dr. Vikram Rao] because that's just pure humour, okayay, you can just pick anything. [Prof. Mahesh] Yeah.
Just - it just grew ... there was no plan.
It was an - it was iconic at that time, I mean
copies would run out
[Prof. Mahesh] you know when they - [Dr. Vikram Rao] Copies would run out, because
we didn't really charge; despite it saying 10 naya paisa,
there were naya paisa in those days.
There would be piles that would be used
and people would pick them up;
yeah ... I can't remember but we probably put out
[Dr. Vikram Rao] 7 or 8 in the first year or something like that, yeah. [Prof. Mahesh] okay.
First year meaning, first year of its life,
which was I think our second year.
So, back to academics,
you were in the Metallurgy engineering stream.
[Dr. Vikram Rao] Yes. [Prof. Mahesh] Who do you remember -
who are the some of the professors who made a -
[Prof. Mahesh] an unforgettable impression on you? [Dr. Vikram Rao] Oh yes.
So, they were quite - but the - the main memory
is E. G. Ramachandran
and he was the Chairman
and I'll tell you a story about E. G. R.
it's absolutely apocryphal. I - you know - in fact, I am reminded -
I am - the similar story is told about ... Richard Feynman,
the Nobel physicist - that apparently he did
almost exact same thing
when he went to give a lecture course in Cornell,
although he was at Caltech.
So, E. G. R. came to us;
I think this is my fourth year
to teach us a course on Advanced Metallurgical Techniques.
He came: first day, he was sitting front of us, we were chatting
and one thing led to another and he said:
do you people understand quantum mechanics?
Now, what kind of question is that, okayay.
So, he then proceeded to ask a few,
nobody he knew enough to his satisfaction, okayay.
So, he threw his notes, threw his notes down
and he said: we're going to learn quantum mechanics
and he taught the whole darn course from here. [Dr. Vikram Rao points to forehead]
I don't remember seeing any notes, ever;
now might be, the memory is a little flawed after the years, okayay...
but amazing, this is like some sadhu sitting under a banyan tree
with 10 chelas around him and learning,
just experiential learning, it is amazing.
Very few people can pull that off;
you - you know - you'll have to have knowledge
in your head to do that and the desire to actually teach.
Yeah, those are the people that built IIT
[Prof. Mahesh] to what it is today in many ways. [Dr. Vikram Rao] They were,
[Dr. Vikram Rao] and there were many who did it in a different way. [Prof. Mahesh] okay.
I would say so, it's hard to know what is the
true foundation of a place;
but without doubt the true foundation of a place is the - is the
leadership at the time, which includes the faculty,
but also the administrative leadership. you know, Natarajan
told lot of jokayes, not all good,
but not all funny, I mean they were all good
He was our registrar, very young guy at the time,
well, lookayed young anyway.
Yeah, you know - that - it's hard to know what is a true foundation;
but I would say yes, particularly because it grew from scratch.
[Prof. Mahesh] Yeah. [Dr. Vikram Rao] okayay and you had to make up the rules as you went.
[Dr. Vikram Rao] Yeah. [Prof. Mahesh] The campus environment,
you've visited the campus several times since your early days.
[Dr. Vikram Rao] Yes. [Prof. Mahesh] What was it like watching the campus grow, if you will?
Well here is the thing, I was blown away when I came
to see all the trees; because when they built the hostels,
they must have had to cut down trees, okayay.
So, in the hostel area it was pretty barren.
No, in fact, it was all fields; there were no
trees in the hostel area.
[Dr. Vikram Rao] Ah so, I do remember that there was nothing there. [Prof. Mahesh] Yeah.
But now you see there are trees there.
So, I assumed that by some regulation you are
required to put trees back.
No, purely voluntary.
But the thing I was really impressed with
and I don't know if it's voluntary
or whether it was enjoined on you,
because this was a state park,
Adyar park or whatever it was - Adyar forest.
It was not enjoined.
[Dr. Vikram Rao] okay. [Prof. Mahesh] It was just a
[Prof. Mahesh] decision of the leadership at that time. [Dr. Vikram Rao] But - but the true impression I get
when I came back after many years is,
blown away by the fact that, by and large,
[Dr. Vikram Rao] you can't see the next building from one building. [Prof. Mahesh] Yeah.
And that some of these old banyan trees are still there,
it's difficult to construct that way.
So, it - there is no other campus like this you know, Powai,
the IIT Bombay people
say it is a sylvan campus, not really, okayay.
In fact, there is no campus like this
which has a true what we'd call sylvan setting.
And you would, how would you go - go out to
find some real life outside?
Bicycle; well, also, although there were 4 or 5 guys
who had scooters and motorcycle.
So, Bava had a scooter, Basu John Vetteth who has passed,
who by the way was one of the all-rounders, had a motorcycle;
Mahesh who has passed as well, had a scooter
of course, his family owned Bajaj scooters.
So, he had a scooter.
But [both laugh] sorry about that - that but it's true;
but the - but the - but the scooter and the people
were not obnoxious about it.
[Prof. Mahesh] Yeah. [Dr. Vikram Rao] I mean there were only what 4 or 5
they were really down to earth; some of them were wealthy,
but it didn't show, we rode the bicycle.
And you had to be careful,
because if there is a stick across the road, you avoid the stick.
Because stick that moves when you are wearing chappals -
an angry snake is not to be tackled with chappals, okayay.
So ... we avoided sticks,
just to be sure; some of those were really sticks.
[Prof. Mahesh] Yeah [Dr. Vikram Rao] But who wants to be sure. [laughs]
And the deer were getting used to the -
Ah, deer we were - we were - we were trained on that,
but several couple of guys got hit.
See the training was that if the - if you see deer
and they are trying to cross, wait for the last one;
wait, just wait okayay, because the straggler usually a smaller one
it's still going to cross
and then they have to cross over you. So, [laugh]
Yeah, how did you communicate with home back days -
[Prof. Mahesh] back in those days? [Dr. Vikram Rao] Letters.
[Dr. Vikram Rao] Letters; pretty infrequent letters, if you ask my mother. [Prof. Mahesh] Letters. You had a Post office -
and you'd communicate back.
Yeah - yeah and this is the interesting thing;
I don't know what any parents would have done in those days,
They - they just trusted to the administration, I guess.
Nice and what was it like to be in the hostel:
describe the hostel life.
[Prof. Mahesh] Yeah. [Dr. Vikram Rao] That Life, if you will.
Yeah, so, the - the - as I said, the first
year we had roommates in Cauvery
and then second year onwards, we had single rooms;
it - it was highly collegial, see part of the thing is
you are stuck in the middle of a forest.
So, you had 240
for the first batch students and the second batch students.
Yeah, first batch was 120.
So, our batch was 120 students, well, when we started,
there was some iteration;
but by second year, no,
I - I would say the first batch might have been a 110,
yeah about 230 or something yeah
[Dr. Vikram Rao] and then we were all there. [Prof. Mahesh] Added on every year.
But see, because we were the first residents of the forest -
which as I told you we reminded them of -
we were highly collegial.
So, the Campastimes thing had 64 and 65;
there was no senior/junior stuff okayay
in - in most of things like,
I used to be on some debating sort of things
and we were all together.
So, I don't know what any other campuses are these days
or how it is now;
but it was highly collegial,
people from all walks of life just being together.
I get the feeling that all aspects of IIT
grew together: academics, campus,
extracurricular activity, student growth;
I - from - from everything I hear,
I don't get this feeling of a sequential growth process.
I don't think we were allowed to grow sequentially,
[Dr. Vikram Rao] it all was happening at the same time, okayay. [Prof. Mahesh] Yeah.
And - okayay, you know, I like to say IITians are
not arrogant, just elitist okay and I hope that is even true.
But at least all of us are sort of fairly smart
and you got to figure it out, you can figure it out on the fly.
[Prof. Mahesh] Yeah. [Dr. Vikram Rao] If as an IITian you can't figure it out on the fly,
then who else is going to and I think we just
figured it out on the fly
and the faculty allowed us to and they did the same thing, okay.
See even the curricula, all the curricula was invented on the go;
for example, we used to have Workshop,
I mean, this is a disaster okay,
actual hard work, okay, some of it just - cold chiseling,
you don't even know what that means, okay [laughs] [Dr. Vikram Rao enacting the method]
So, this was - this a chisel, metal chisel, metal hammer
and if you went from here; you didn't get any marks,
you had to go from here
And then you had to hit this, you are not allowed to wear gloves,
so that means you learn.
[Prof. Mahesh] It builds personality.
It would build something, big fat thumbs is what it builds.
okay, and - and then you tookay this - this - this U-shaped object
and made it into a paperweight which is flat.
[Prof. Mahesh] Sure. [Dr. Vikram Rao] okay. So, I think this is, but it's a great leveler.
[Dr. Vikram Rao] okay. [Prof. Mahesh] So, you wrote a lot of caricatures for - for IIT Madras,
[Prof. Mahesh] I mean for Campastimes. [Dr. Vikram Rao] Yes.
So, name some of the people you caricatured
and personalities you remember from your days then?
So, actually I'm not sure that -
it sort of just happened;
usually the caricature - the early part is easy okay,
because you picked some of the faculty
that were interesting
and or some of the student body that was interesting.
But after a while, it was just if something happened;
then on basis of that the person got picked.
And - and so, what I would do is, I would go -
So, Professor Sampath for example,
who was a double E (Electrical Engineering) Professor;
I think we now have a Chair in his name.
So, the Sampath one happened is that,
he was just a larger-than-life person, okay.
So, he was an obvious choice. So, I went and interviewed him.
So, what I would do is, somebody who I did -
didn't know all that well,
I would interview them and just get some facts
and then fictionalize them [laughs]
[Prof. Mahesh] Nice, nice, nice [Dr. Vikram Rao] Yeah.
So, tell us a little bit about your convocation
the then Education Minister was your convocation speaker.
So, I actually came to the darn thing okay,
some two days; and the reason I am telling I came to it,
[Dr. Vikram Rao] because I didn't go to my Ph.D. convocation, okay. [Prof. Mahesh] okay.
I was ... actually, I came because we were a family okay,
that is why I came, okay. Yeah.
And nowadays I may or I may not come.
So, I don't remember much of the convocation
other than the speeches and that some of us got,
actually I got an award for this damn thing for some reason;
I did - it was all made up,
because how could there be an award for
Campastimes, okay?
No, no, I think it broke a path
[Prof. Mahesh] inside a forest called IIT Madras. [Dr. Vikram Rao] Yes.
I know, ... most
of what I remember about is just meeting them again;
see we left early, see you don't realize this.
See we - we graduated early because of the war, okay.
And so, we graduated I wanna say in February or something,
[Dr. Vikram Rao] but the convocation is at the regular time. [Prof. Mahesh] Sure.
So, there's a gap, so we all went home and then came back.
And so, it was good to sort of meet everybody.
So, what I remember mostly is saying goodbye correctly;
because when you leave, you sort of all scatter, right.
But saying goodbye correctly and seeing the place again
as an alumnus, it was - it was very cool.
So, I don't remember the pomp and ceremony,
I just remember the fact the family came together.
I think all - every student in the - in a
convocation would say exactly this.
[Dr. Vikram Rao] Yeah. [Prof. Mahesh] The pomp and ceremony is secondary.
[Dr. Vikram Rao] Yeah. [Prof. Mahesh] Describe what it was like leaving IIT Madras,
going back. Did you leave alone?
Did you have some friends go out with you - what was it like?
No, because I was going to Delhi in a train, okay
and there were only a few of us
and we didn't, no, we did not go to
I don't - no recollection of going with anyone,
because I think we were about 3 or 4 from Delhi.
See, that time because there was no joint entrance exam;
they deliberately had pockets from all over the country.
So, there weren't that many from any one particular area.
So, I don't have much of a recollection of - of the leaving part.
Very nice, this has been a fantastic interaction;
would you like to say anything?
Well, no I have - I would like to say
this is wonderful to have a Centre like this;
it's not often that your heritage is preserved
[Dr. Vikram Rao] in - in a way that is interesting, see this is the point. [Prof. Mahesh] Yes.
You can preserve in ways,
but it has got to be interesting to the casual observer.
[Prof. Mahesh] Correct. [Dr. Vikram Rao] And while I am not a casual observer,
I can put myself in the place of a casual observer
and say this is a terrific place and thank you for having it.
Thank you so much for doing this.
[Dr. Vikram Rao] No, no, no worries. [Prof. Mahesh] Yeah, bye.
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Prof. S.N. Venkatarangan in conversation with Prof. Usha R
Good afternoon, Professor Venkatarangan.
Thank you. Thank you very much Usha, thank you. So,
on behalf of the Heritage Centre, I wish to extend a very
warm and affectionate welcome to you.
Thank you. Thank you very much. Thank you. And thank you
very much for accepting to join this
Oral Heritage History Interview
and conversation and I am a highly honoured.
And it's a pleasure for me to engage
with you in this conversation.
Thank you. And I am sure in the next 50 to 60 minutes,
we would have learnt a lot about those golden ages, golden age
of your career in this department and in the institute.
And- Yeah, yeah, thank you. Thank you very much.
So, I will first start with a brief introduction about myself- Ok.
And how I joined the institute. Yes.
I was a graduate B.A.
Mathematics from Government Arts College, Coimbatore.
And it was about 18 years
when I completed my graduation.
It was an exceptional thing because
those days, they were very strict
about age restrictions. Yes.
But there were some special cases.
Where they exempted people who were highly motivated and then,
they allowed them by the Director- Ok.
of the Director of Education,
school education and we were asked to complete
our SSLC and take our graduate course.
So, I did my B.A. Mathematics at Government Arts
College at Coimbatore, it was B.A.
at that time not B.Sc., B.A. Mathematics
and then, I got a first-class rank.
And then, I wanted to join B.E.
because at that time, there was a clamour for B.E. students
and therefore, I wanted also to join, but because of
financial circumstances, I could not join
and it anyway it was my ambition
to join some engineering college
and become a graduate in Engineering.
But my uncle advised me at that time because of financial reasons
to become a teacher B.T. was only a 9 months course, Bachelor of Teaching
so, he said you join
Ramakrishna Vidyalaya at Periyanaickenpalayam
and I joined there and then in 9 months I completed my B.T.
at Ramakrishna Vidyalaya Periyanaickenpalayam
in English and Mathematics.
Two subjects we had to take and English and Mathematics.
Then, I joined as a teacher
in Municipal High School, North Coimbatore
and I was there as a B.T. assistant for 5 years.
1957 to 62, but at that time, I had always been aspiring to be
a graduate in Engineering so,
there was no other option, but to go for AMIE,
that was another avenue which was available to me
and so, I was earning and learning also at that time.
So, I was doing my AMIE course
at a Institute at Coimbatore,
at a private institute at Coimbatore.
And I was the only one who passed
a section A of AMIE.
In the first attempt from that institute.
And then, I was interested in doing section B
and becoming an Engineer.
So, when I took leave for section B,
from the school, at that time, I was interested in doing LE also,
Licentiate in Electrical Engineering because AMIE I have passed
so, I thought let me do LE also simultaneously
so, I came to write the LE examination in Central Polytechnic here.
At that time, there was an advertisement in the paper about IIT Madras
and then that year, they said that
they will admit students for Mathematics.
This was which year? So, pardon.
Which year was that? That was 1962.
1962. 1962, 57 to 62 I was a BT assistant.
62 I came here to write the examination because
it happened to be the date of interview here at
IIT Madras also was happening to be the near 1 or 2 days near
so, I stayed here and then I came to the institute for the interview
and that time Professor Sengupto was the Director
and Lakshmanaswami Mudaliar was the Chairman at that time.
And then, I went for the interview and there was the big hall
and that was in the now housing Civil Engineering Department,
there the Director’s Office was there and there was a
long table and all that which I have never seen in my life
till that time because that was a very big table and then,
about 40 or 50 people will be sitting around and then,
we were called in for the interview
and luckily only five people were selected.
And they said, of course, we told them that it will not
be possible for me to do the
thing here because I had some problem
with finance, and they said we will give you scholarship
and so, all the five of us were given scholarship
and I think it was the same with the Physics and Chemistry also
that was the first batch at that time.
So, we joined here and at that time, we were not having a
separate department, we were housed in some three or four rooms
in the HSB. So, this interview is for
admission into Mathematics Department? Into Mathematics.
For graduate programme?
Ok no, for the Mathematics they gave M.Sc.
Entrance, for entrance there was a interview, oral interview and then,
they selected based on the. Ok.
Performance in the interview. Ok.
There was no examination at that time. Fine.
At that time, there was no examination.
And so, five of us were selected.
And then, we continued here completely and then in the year 64,
we got our M.Sc. degrees.
And then because I had taken leave from
the institute from a municipality at Coimbatore as a teacher
so, I went back and joined there and then, Professor Nigam had
joined in the department. He was the role model for me in teaching
as a matter fact possibly you must be knowing. yeah
That he was the role model for many people
who wanted to be good teachers
so, we became good teachers only because of him.
We used to enjoy his teaching and he used to have classes
even after the college hours at that time. Yes
In Hydrodynamics. Yes.
And then, we used to go and meet.
So, there was plenty of give and take between
the students and the faculty at that time
because that was about one;
one year since he joined, at that time,
Professor Srinivasan was the head,
S. K. Srinivasan was the head.
Then, after I joined there, the DOO who came to see me
he said better go and join for Ph.D.
and why did you come here unnecessarily
as a teacher wasting your M.Sc. degree.
Then, he I-I appreciated him,
and he said I will get you leave and so, you go and join.
When I came here, the date was over.
Date for applying for Ph.D. was over,
but then, Professor Nigam took me to Professor Sengupto and
said that he is our student, one of the best students here
and I would like to take him so, he has not applied, already one,
one week has passed, then he said it doesnt matter, let him apply
now and then, I was selected. Oh Nice.
That time and then, of course,
I told Professor Nigam about my family circumstances and all that.
And the next year, after I joined as a Ph.D. scholar,
he took me on the staff.
As a Senior Technical Assistant.
The lower most possibly in the department at that time.
Ok. But anyway, I was very happy because I could get some money.
Ok. And then, help my family that was how I joined the department.
And then slowly I had a good reputation of being a good teacher
because I used to follow Professor Nigam and
he used to give me a classes
and whenever teachers were about to go,
I was waiting for them to go.
And then, whatever classes they were taking, I will take from them
and then, go on teaching and so, like that;
though I was a Research Scholar for one year,
I could go on teaching even at that time itself. Ok.
With the permission of Professor Nigam,
I will go and teach the students
in the absence of the teachers and that is how I entered
into the department as a Senior Technical Assistant
and then, slowly I went up
the ladder and retired as a Professor in 1997.
Ok. 97 and 90 till 98, there was a extension for me 98
June I think, 98 June I retired. From the institute. Ok.
So, that is how I got into the institute.
And of course, my ambition of
becoming an Engineer was not satisfied,
but coming to an Engineering College
was satisfied. Satisfied.
And I used to get paper for correction from AMIE.
Ok. Where I had completed my course.
So, they just followed me and then,
I was getting paper correction from AMIE. Ok.
For for section A students in Mathematics. Ok.
So, I used to do that. Ok.
So, that was how I entered the institute,
and I had a very pleasant experience.
All through.
Ok. So, as a Ph.D. scholar with Professor S. D. Nigam.
So, what were your experiences, how how was
I mean what was his approach in-
No, he was. -moulding you.
Yeah, yeah, no, not only moulding me, moulding many people. Ok.
When he came from Kharagpur, he came from Kharagpur IIT.
At that time, we were all thinking about
only the previous staff member
S. K. Srinivasan and others, but when I joined under Professor Nigam-
Because Professor Srinivasan had already taken Research Scholar
so, he did not want to take me at that time, he said you please ask
Professor Nigam so, I asked him. And then, he took me.
As a Research Scholar.
There were three Research Scholars with him
at that time and there were many other
staff members who were interested
in doing research under him
though they have not registered at that time,
even Srivastava and other people.
So, when all of us we will meet in the evening,
every day we will meet in the evening
by 7:30 after our food in the hostel,
we will come here and
Professor Nigam also will come from his house
and then, from 7:30 to 9, each one will tell whatever he has read
and found interesting, he will present it. Ok.
In the seminar room of the department.
And so, the department will be active till 9 O’ clock.
At morning 7:30 or 8 O’ clock,
Professor Nigam will be there before we come from the hostels,
he will be there. Ok.
So, he was such a nice man and at that time
there was not much of journals which are available in the library
in the fields in which he was working- Hydrodynamics particularly
So, but he had a interest in collecting all the paper
and so, he used to have a bundle of papers collected from
some persons and he had to return them.
So, we used to copy those papers of other authors in Hydrodynamics.
And then, we will be at the time of copying, we will be
interested in knowing what they have written and all that.
Right.
So, that is how we started and then one day he will say
you take up this paper and present it here.
So, like that he used to ask the students.
He will never give the topic of research to the students.
The students have to find it for themselves.
So, he will say if you find this interesting, go ahead,
see these journals and then, read and present it here.
So, I used to work in liquid helium also.
Ok. I mean in the beginning.
Liquid helium and then, stationary principles, all those things, but then,
he left us completely free by that time I became
a staff member also so, it was part time for me.
But anyway, he will not leave if we present something
to him one evening, the next morning he will come and ask
what did you do about that?
Have you found out the answer for my questions?
He will come to my room and then ask.
Exactly. What so, that is how he started.
The creating enthusiasm in the students.
By his enthusiasm in the students.
Exactly. That is what he used to do.
That was how he motivated us.
And then, we will go and tell him sir, this is the field,
I feel that there are some interesting things
which are here then, he will say please proceed ahead.
And then in the seminars, we will present
and then, he will say take up this topic.
So, go on doing research.
So, that is how we started with that.
So, there was the topic of research that I had
was on the use of local potentials.
As in chemistry, there was a Prigogine,
Ilya Prigogine by name.
And he was a Nobel Laureate.
He had come to IIT Madras also. Professor Prigogine
had come here. He is a Chemistry Professor of Belgium
University and he had come here and I was interested in
doing work in his field and so, I had done some work already
and then, Professor Nigam said this is the best time.
Ok.
So, he is coming to Maths Science so, we will invite him.
You present to him whatever you have done
and then, we invited him here and then,
he used to come here in the evenings and discuss with us
and then, he found that two paper that we had done in his field,
were very interesting and he said if you permit me,
I will present it in the Belgium Academy of Sciences.
On your behalf, you need not come, I will present it.
So, the two papers that I had first were presented by
the Nobel laureate in Belgium Academy of Sciences.
Who is the Nobel laureate?
Prigogine, Ilya Prigogine, Thermodynamics man.
Oh, oh. Thermo.
See he was a student of De Donder and other people
and he said Thermodynamics actually the state of any system
can be defined in three or four ways so, one is
equilibrium state where everything will be a constant
at every place here, it will be a constant
irrespective of its position and time and all that.
That is equilibrium dynamics. That was the thing
which was being taught in the schools and
colleges at that time. And then, the system that is next
is what is called as the stationary state.
Or steady state.
In steady state, the temperature everything will be depending upon
position not on time, position not on time.
So, they will be coordinates of position
and then, the other non-stationary state is one
where you have position and time coming into play.
So, if you are going to study systems,
the systems will not be always in equilibrium,
every point in the world will not have the same temperature,
same pressure etcetera.
So, people thought thatTthermodynamics
which was being taught was dead
completely and it is useless.
And so, Prigogine took up,
Prigogine and his student Glansdorff of Belgium School,
they took it up and then, they said how it can be modified
to accommodate the steady state and the non-steady state.
These were the three states and of course,
the turbulent state was beyond that scope,
it was not in the local potential area,
but turbulent state was completely different and
that was discussed by Landau, Landau and Lifshitz of Russian School.
So, this was when I presented it to him,
and we had applied it to problems in tThermodynamics
in Heat Transfer, in Boundary Layer Theory
and instability of systems Chandrasekhar’s Field.
So, these four problems I had tackled using his method.
Ok. What is called as the local potential?
The main idea is which is the system may be
completely different at different places and different times,
but when you take delta t time like Newton’s method
so, there will be a local potential for that.
So, there will be an upper one and a lower one
and so that is how they built up what is called as
the concept of a local potential.
And then, when he presented that paper,
the two paper were accepted and then,
those were the two papers which I published
along with Professor Nigam in the first stage,
beginning stages and it was quite enthusiastic work for us.
Oh, Very nice.
So, that is how we started and continued with that.
Ok. And then later on, when I completed my Ph.D.-
So, how long did it take?
It was. For you to complete?
Because I became a staff member
and I want to tell you also another thing.
When I became a staff member at that time,
we had about 60 students in a class
and the B.Tech. students were divided into 4 or 5 groups.
And simultaneously, four teachers will be teaching.
And so, I used to take one section and then,
parallely there will be-
So, you mean to say- 4 others.
Class strength was 15.
For? You said 60 students would be divided into 4.
No, not 60, 60 into 5. 300, around 300 B.Tech. students. Ok.
B.Tech. students will be in 4 or 5 batches. Ok.
And then, one will be under my charge. Ok.
And that will be correspondingly my colleagues will be taking 5.
Yeah, I understand. 4 more sections or 5 more sections
and so, we used to meet together and then,
discuss about and what what happened was
that some of the students felt that
they could come to my class because that was divided
already by the academic section and so,
they said sir, we would like to attend his section and
it was not possible.
So, what was done was,
they went to the Head of the Department So, what was done was,
they went to the Head of the Department
Professor Nigam and said sir, we would like to attend
his classes so, please reorganize.
But all the other people were also asking and then,
they say they went to the Director also at that time
and then, they said that what should be done?
Ofcourse, not that they were against the other teacher,
but they said I we like the way the he teaches
that is what they said.
And then, he said if you are interested then, come after the
school college hours and then by 5 to 6:30
I will be teaching in the Central Lecture Theatre
and all the students of B.Tech.,
most of them who were interested
will be coming and joining.
So, like that I used to give.
Ok.
So, that was one of the things which prompted me
to become a very good teacher, if possible,
that is how I started.
Most of the things I learned by teaching the students.
Every year when I teach a teach the students,
I used to teach it in a different way.
Because I know the difficulties of the students who have
done the previous examinations, they would have come and
told me sir this is how I understood, but the next
time when I teach, I will see that that doubt
will not come to anybody in the class.
So, that is how I improved my teaching.
So, I was a teacher, but also, I was a
student at the same time. Yeah, yeah
So, that is how I enjoyed teaching in IIT
and more most of the things were very simple,
the students used to ask me why is 0 by 0 indeterminate form?
Why is infinity minus infinity indeterminate form?
Why is 1 to the power of infinity?
Because 1 to the power of infinity 1 into 1 into 1
any number of times is 1 only,
but 1 to the power of infinity is indeterminated
you can’t find the value why?
So, I used to give them practical examples
of infinity minus infinity, how it is 4, how it can be 5,
infinity minus infinity can be 6, how it can be 6
so, I used to construct and give them very simple examples
that is why the students are started liking me.
Ok.
They said sir because we did not know all these things,
my teacher also did not teach me all these things,
but this I learnt by thinking about the whole thing and then,
wanted to give them some examples.
Ok.
So, that is how I did that. Ok.
So, the teaching was in a way a learning for me. Ok.
To become a very good teacher. Ok fine.
So, that is how I used to spend my time
and after that of course, M.Sc. courses are also there
and there were some Engineering students who wanted to take
some courses under me
because Professor Banerjee was teaching
Electro- Electromagnetic Waves and there,
they had the operation of delta coming in, del operator
so, they were saying sir, divergence,
curl and gradient and all this we are not able to understand,
can you please? Then, I said first I should get
the permission of Professor Banerjee
because I do not know what he is teaching you and all that,
but I must concur with him so, then they said
you contact Banerjee, Banerjee told me these are the things
which the boys, I am using for the boys.
Then, Professor Nigam said you please take a special course
for Electrical Engineering students outside the class hours
and 5 O’ clock again Central Lecture Theatre,
the Electrical students will come and I used to tell them
what is meant by the operation del when it
operates on a scalar, on a vector as a dot product,
as a cross product, I used to tell all these things
and in the process I learnt many things. Yeah, yeah
Which because I had to explain to the students in a clear way
and so, I had to deeply think about that and then,
find the applications, the AMIE that I studied was very helpful.
Because at that time, Engineering applications were
there in AMIE Engineering, Electrical Engineering applications.
So, I used to teach the students when they came for knowing
the operations of del and all that, where do you get this?
In Electrical Engineering.
In Hydrodynamics, where do you get that? For Civil Engineering.
So, that is how I used to attract the students
by giving them some practical examples
in their own fields so that is how- That is interesting.
I became a a good teacher. Ok.
And when I joined the department.
I will tell you that there were no,
you the the only slide rule was made compulsory
for the students, the Engineering student must buy the
slide rule at that time. That was 1967, 68 and all that.
And there was a big model slide rule in our department
which was under my custody.
When I joined as an STA,
I they were they asked me to demonstrate
how to use the slide rule for multiplication and all that.
And then slowly, after 2 or 3 year the slide rule became
obsolete and then, you had the CAN calculators.
And when the CAN calculators time, we had Brunsviga.
From Germany, there were in the lab Brunsviga
calculators were there and Faceit, Faceit calculators
and I was appointed there as a person in charge.
And then, the boys used to like it very much because
it has to play with the- Yes.
machines you know?
So, they used to play and come and play and then, do
Mathematics, numerical methods at that time.
So, Professor Subba Rao was also there. Ok.
So, he will give some problems and he will say
Venkatarangan will be in charge, you please go
ahead and learn from you.
So, they used to come, and do numerical methods.
And calculate and all that.
Of course, nowadays, then of course, we had
the computers coming in and after that the Brenziger,
I dont know whether they are in the here or in the workshops,
it must be a somewhere laying idle.
And all that.
So, that is how the progress in the department was there.
Starting from the slide rule up to the laptops
and desktops all those things.
That is how the development took place
and then, the teaching methods also changed
because the numerical method which was being
taught earlier was very slow, but now,
after the advent of the calculator and all that,
it was very quick so, the students also
used to do a lot of problems and then, we could also
proceed to more interesting topics in numerical methods.
That is how the syllabus also got changed
because there is a flexibility of changing the syllabus
by the department after some time in consultation
with the teacher so, we used to change the syllabus
and then, improved some new methods and all that.
So, that was how the teaching pattern also was changing
every time and I used to enjoy teaching in IIT till I retired.
Till the date I retired.
Ok.
So, I have heard a many of your students saying
how passionate you were about teaching.
Yeah, yeah And how they really wish to be a teacher like you.
Yeah, No, I I- I have heard many of your students-
No, no I I think you you are you are also- -telling me.
-student of Professor Nigam. Yes, I am also.
And everything came from him.
Yes, yes.
The way he explained. Yes.
That see the whole concept will be very small.
But the foundations that he lays,
it will lead you wow, what is the next thing,
what is the next thing.
Yes, exactly So, like that it will go.
Yes. And then finally, what he says
will be very easily understood by you. Yes.
Without your knowing, you will understand, this is so simple.
Yes.
So, that is how the whole thing will
So, when some people come to me for Mathematics even now.
I tell them very simple things, example things,
for example, complex variable, the complex integration and all that,
why complex integration, why do you do that?
Laplace transform, why do you study?
First, I tell them the need for studying something.
So, everything has to be studied because
you want to make it simpler so that you can so,
the Laplace transform does only differential equation
becomes an ordinary simultaneous equation which is very easy,
you are very easily able to solve.
So, that is how I create interest. In the students. Ok.
So, how did Professor Nigam’s training to you
towards research help you in the later years?
Yeah of course, yeah because my students also
whenever I was not like Professor Nigam,
I want to tell you very honestly,
but he was such a wonderful man,
he could have four or five research scholars too,
but I used to take only one at a time, concentrate on him
because along with my teaching work,
Yes. it was very difficult for me to go with
the two or three research scholar at a time.
But one at a time, but whenever I used to take a research scholar,
I used to consult him.
And then, I will say sir,
this is the topic I want to give him, I will always consult him.
This is the topic, would you feel that it will be good?
Then he said yes, yes, it is very good, it is very interesting,
you proceed. That is how all the research scholars that I took
I will always take his permission and then say this is
the field in which I want to work and then- Ok.
He will understand that and do that. Ok.
And the last student whom I took was Rajalakshmi by name.
You might have known her; she was the M.Sc. student here.
Ok. And Rajalakshmi worked on Adomian’s principle.
Adomian’s principle of solving equations
and Adomian because I saw in a review
that Adomian had given an idea that
this method will be working in all the fields.
Not necessarily in the field in which he has found it out.
So, I took that and then, Rajalakshmi did work on that.
And then, there was another scholar also Sivakumar,
he also did work on on this.
So, Adomian’s principle.
So, in in a way, he was a motivating factor
and also, a guiding factor even after my Ph.D., he was
guiding me in many ways. Ok, ok.
So, that is. Ok.
Excuse me, when did you get your doctorate?
72.
72. And when did you got promoted
from STA to higher level?
I dont remember,
STA that was about 6 or 7 years later.
As a Lecturer and then, Lecturer to Assistant Professor
and then, Professor I don’t.
Assistant Professor?
Assistant I dont remember the dates, but Ok,
I just want to remind you about one thing.
When Professor Indiresan. Yeah, yeah correct.
Introduced the ferric system.
Yeah.
And I remember, he wanted to have 10 periodicals.
Yeah.
I wanted to tell you that, you were in that meeting. Yeah, yeah
I I want to tell you that also, see Indiresan was a very nice
teacher, there is no doubt about it, but when he came here,
then he had, he wanted to implement some things
which were done at IIT Delhi. Delhi.
and then, we I think you were also there in the meeting
and some students were also, student representatives
were also there and then, he said that from next time onwards,
every week there will be a test for the students in Mathematics,
in Physics, in Chemistry in all the subjects every week.
This week whatever they have learnt, next week
they will have a test in that topic etcetera
like that he was telling.
Then of course, everybody was
keeping quiet because he was a new Director
and he asked what is your opinion?
Then I said sir, if you ask me frankly, I will tell you
otherwise I will keep quiet.
Then, he said you tell me,
you are supposed to be a very good teacher please say
tell me with that, then I opened out and said
sir, there are some topics in Mathematics
which cannot be taught in one week.
It might be one month to finish that.
So, with all your experience, please tell me
what is the topic that is? I said continuity.
Simple topic like continuity, the concept of this left limit,
right limit and then, the students have to understand this
and then, they have to do problems on that
and then only when they have mastered that,
you can ask them questions on that otherwise,
first day left limit, right limit and what will
they know about it?
So, there is no possibility of
having a test in some topics like that every week,
but if it is a month or so it will be good,
and I said in Chemistry also, it is the same thing,
I took was the liberty. I asked Swamy.
Someone tell you I said that.
I said sir, as far as my Chemistry knowledge
is mostly 0, but I will tell you from what I know
the halogen group and all that, there is a halogen
what is that chlorine, bromine, iodine and fluorine
and in this, fluorine is the most active one and
so bromine and iodine it goes on
and you have to study the whole group
and then only have common properties,
differentiating properties and it will take I think
quite a lot of time not one week or so,
it will be more than that and then, the students
who are there, then they said sir,
what Venkatarangan says is right.
So, let us not have weekly tests.
Let us have monthly tests.
He was very angry.
He was very angry, he was terribly angry.
And meeting was adjourned.
And then, the students-
Yeah. -apologized to me. So, they said sir,
you try to raise that hand and then,
it happened like this.
So, they so, anyway, so anyway we didn’t have
that the time periodicals. Ok.
Just usual. So, usual usual otherwise, they every day,
see every week there is a periodical means
they all the days they will be students
will be having periodicals only.
This week on portions on last week,
next week portions of the previous week and then,
final examination and there are many topics
which cannot be covered in one week.
In 3 or 4 lectures, how can you continuity,
differentiability, how will you do do that?
It is very difficult.
Even for M.Sc. students, now
who have understood all those things,
it will be very difficult.
If you ask them to teach.
It will be find difficult, you have to construct
examples and give them.
So, that is what I said. Ok.
And it is nice that you reminded me that was Ok,
then what was your reaction when the system
changed to a semester system?
No, the semester. There was a change, isn’t it?
No, semester system was good,
semester system was never bad.
No, no, I am asking there was a change
from 1 year duration programme.
And to a semester system programme. System programme.
Yeah yeah So, what was the reaction at that time?
No, I I was very happy about that, I was very happy
instead of hanging on completely throughout whatever
for for 1 year.
So, you break it into
two halfs and then, study, there is nothing wrong. Ok.
So, it was welcomed by students also. Ok.
Students also welcomed, and I also welcomed that. Ok.
So, that is quite interesting and so. So, then,
did you stay in the campus sir or?
No, I was staying in the campus only. Ok.
So, what changes do you find in the campus now?
Now of course, it has become slightly crowded
that is what I find, there are lot of buildings
which were not there earlier.
So, at that time how was it?
No, the multi-storeyed buildings
which have come up on this side when I came now, today.
This side I saw some multi storeyed buildings.
They were not there.
And it was quite calm,
and we used to enjoy the open-air theatre picture.
Because at that time, TV’s were not there,
TV programmes were not there.
And if he remembered, we used to enjoy
all the programmes which were given in open-air theatre.
And the college, the hostel functions.
The hostel functions will always be conducted here.
And the hostels will come here and then,
they will give a general entertainment,
we used to go there and sit, mimicries will be there.
Very nice, interesting programmes by all students.
And the students were very much talented I
of course, now also they might be talented,
but still, we were able to appreciate the talents
of all those people at that time.
Because we never had TV or anything,
only this was a recreation which was very nice.
And many people from my relative’s houses,
they used to come here on Saturday
and then, come for the programmes here.
So, they used to enjoy very nicely all the programmes.
Ok.
That was very nice.
And then, another thing also happened
in the mean while we had
Pakistan war or China war I dont remember
and then, 3 year B.Tech. course was introduced,
you remember that 3 year B.Tech.?
Yeah. B.Tech. course, a special special.
For I think this was for 3 or 4 years,
it was continuing and then, we had good experience
with many people who were coming from Army, Air Force,
there used to be a number of people who used
to come there, I used to teach them also. Ok.
Mathematics and so, that was very interesting thing also,
along with the 5 year which became 4 year later.
And then in between, there were 3 year.
Ok.
3 years course, for about 3 or 4 years it was there.
Very nice programmes.
So, those those students must have completed
their undergraduate programme
and. Yeah and then and then comes here.
Yeah, and then come here.
So, graduate B.A., graduates they will be coming and so. yeah
Or science graduates.
Some people were deputed
by the Army, Navy and Air Force. Ok.
They were also here.
They and they had lot of interest also.
Because they have to go back and join the
parent department and all that.
That's why they used to take lot of interest doctor,
professor one was Kala by name,
you I remember most of their names.
So, there were some girl students also who came.
And we enjoyed teaching those
three that was a separate course for them.
So, the syllabus was different and very nice,
interesting courses we had.
So, apart from teaching
and research, have you been a warden of a hostel
or some sports? Oh, no, no I was not ah, but there was
some special programme
for the we can’t call it as
SC/ST, we should not call it now as a SC/ST
special course was there, you remember that?
Sir, scheduled caste.
In B.Tech. in- Preparatory course.
B.Tech. Preparatory course
No, those students who failed in the entrance examination.
And were Scheduled Caste and Scheduled Tribe candidates,
they will have special coaching by the IIT,
those who have not a were not able to get into IIT,
they were called, given scholarships and then, they were
trained here in our institute, institute teachers
used to teach them and then, they will appear for the
entrance exam the next year. Ok.
And then, they will get qualified and come in
so. That was only in Professor Indiresan's time.
That was Indiresan and in and in fact,
I heard that Indiresan was very much upset by that programme.
Yeah. And I you must have heard about it.
It was only in his time that
some where the students were given
that B- B.Sc., Tech or something B.Sc. arts. Yeah, yeah.
yeah, yeah something like that.
So, he was against it completely,
but anyway because of force of circumstances,
he is a very principled man, Professor Indiresan
though in spite of my quarrelling with him,
but still I appreciated him because I was deputed
to Germany Germany and I was here to Peradeniya University,
Peradeniya University for teaching for 6 months.
I was there in Peradeniya University.
And along with me some Professor Venkateshaiah
and Sri Ramalu, all those people there were there
and from Chemistry Department, who was there
I don’t remember, Chemistry nobody came.
Only for Mathematics, Electrical Engineering, and
Bhattacharya also along with the next batch,
he went to some 3 or 4 people were deputed
from our department for the teaching
So, first I was deputed, they said first you send
some good teacher and then, you can continue
for three more semester so, first semester I went there.
And I taught in the Peradeniya University.
Ok. For the students there that was.
So, you said you you were you graduated as
the first batch of M.Sc. students from this institute. Yeah, yeah correct.
So, who were all the faculty members
at that time apart from Professor S. D. Nigam
and Professor S. Srinivasan? D. S. Subramanyam was
one of the faculty, D. S. Subramanyam.
He-he was one of the best teachers.
He was one of the best teachers though many people
do not like him because he never will look upon
look towards the students and then,
he will go on to narrating whatever he wants to say,
teaching them, but only thing is those who are in the
first four or five seats, they will be able to hear him
and the others at the back they never used to hear him,
but he was one of the best teachers that I could do.
In pure Mathematic, he was the best in our department.
And then, S. K. Srinivasan was there.
S. K. Srinivasan at that time, we had an understanding
with people in Matscience.
Professor Alladi Ramakrishnan was the chief at that time
there and Vasudevan was there,
and S. K. Srinivasan is the student of Alladi.
And so, we used to go to Matscience for seminars
and they will come and give seminar in our HSB 237.
Every week there will be one seminar.
So, one Friday, we will have here, one Friday, we will have in-
Ok. So, there were many people who were there,
from our department, there were two people who had joined there
by name Sridhar, who was an M.Sc. student here,
he did his Ph.D. there. Ok.
And then, Sunder, by Sunder is another name
and there was a third student of ours
another Sunder by name
and he is also there, Sunder was there and there was
one more person, they were all top-ranking students here
in Mathematics and they were taken by-
Keshavan.
Keshavan also. Keshavan, Keshavan right, I forgot
Keshavan French yes. Yes.
He was in France for sometimes,
Keshavan. Yes.
Keshavan is the other student,
excellent students, very brilliant students.
Keshavan’s classmate is the other person. Yes.
Sunder.
Sunder I don't know whether he is continuing here or not.
But Keshavan, Sunder, they were all there.
They were so, we had a very good understanding,
we used to go and give that is how I got to Prigogine.
When he came there.
Then Professor Nigam brought him
here and then, he presented my paper. Ok.
So, it was very nice.
Associate and then, we had
associated with the AC College of Technology also.
So, the Mathematics G. N. Ramachandran was there.
G. N. Ramachandran was there and some of his students,
he they used to come and learn Mathematics from
our department so, I used to help them.
So, he G. N. Ramachandran will tell you can help
get the help from these people.
And there was some Electric Engineering
staff member there who were
very much interested in coming and learning something
from our Mathematics Department say they used to
come here and learn and at that time,
when I wanted to ah, when I complete my Ph.D.,
there was no computer here, big computer system here
so, I went to Guindy Engineering College and then,
they used to help me at that time and then, AC college,
both the colleges I used to go and get the time in their computer
and so, there was a quite lot of understanding
between all the three colleges and then, the institute.
Of Mathematical Sciences also at that time.
Professor Vasudevan was there.
You might have heard about him. Yes.
very well-known figure Vasudevan,
Alladi's student and a colleague of him. Yes.
and S. K. Srinivasan’s colleague.
And I worked on his paper.
It was a dissertation at that time, M.Sc.
we had a dissertation also so, I was asked to go to
Professor Vasudevan and then, because there was
Quantum Mechanics which was being taught
in our department by S. K. Srinivasan
so, he said you go, and I worked on Yukawa potential.
Which was Vasudevan’s topic and I in in fact, it was
and I think most of the things were taken from his book,
Vasudevan’s book on Yukawa potential
and he was the external examiner for me.
When for M.Sc. he. Ok.
was there. Ok.
At that time.
So, we used to and there was lot of
other activities also which were happening at that time.
Which I don’t think now it is happening;
Professor Valluri was there.
Professor Valluri was there and he
he was the fracture mechanics man,
fracture mechanics and he used to give talks
and all the staff members were invited for that.
And we used to go there, it was a series of
talks about 10 lectures were there.
And similarly, in Physics Department,
Ramaseshan, Professor Ramaseshan,
who is related to C. V. Raman,
he he used to give talk in the Civil Engineering Department,
and we also used to go and attend.
And Professor Vasudevan of- Metallurgy.
Metallurgy; Metallurgy Department and his brother,
his brother was in Physics Department.
R. Srinivasan. R- R. Srinivasan, R. Srinivasan gave
talks on helium atom, hydrogen and helium atom
and at that time, Professor S. K. was giving a
a lecture to us on Quantum Mechanics
so, all the staff members used to attend,
and we used to go and attend there
and so, we are all students of R. Srinivasan also
at that time, they used to invite all the people
and then, we will go there.
And and another surprising thing which now is not happening
is one of the things at that time;
modern Physics was a topic for
M.Sc. Mathematics students.
I don’t remember; I dont think you remember that
Professor Ramji Rao took the class,
Professor S. Srinivasan, he took classes for us
on Modern Physics on. Modern Physics.
completely Modern Physics they were teaching
and so, we had we used to come to the laboratory also.
So, we used to have laboratory classes also
and we used to perform experiments along with
B.Tech. students, there were some separate place for us
and so, they were all C. K. Narayanswamy was in charge
for us, Professor C. K. Narayanswamy,
he was in charge of us and we used to
like enjoy it very much.
Professor Ramabhadran was there,
Ramabhadran was also there.
So, we used to enjoy and and particularly,
Ramji Rao’s, Professor Ramji Rao’s classes,
Ramji Rao was from Physics,
he used to teach Physics for us
and so, we used to enjoy and then, Quantum Mechanics.
Quantum mechanics was
taught by Srinivasan there in Physics Department
and by S. K. Srinivasan in Mathematics Department.
So, we used to attend the S. K. Srinivasan’s class
and then, Physics students will say
sir, his classes are very good.
R. Srinivasan class, you come attend
so, we will attend his classes also.
So, we used to of course, with his permission,
we used to go there and sit, and learn from Srinivasan.
He was one of the best teacher, R. Srinivasan is
considered to be he was the Deputy Director also.
Yeah. For some time of our institute, one of the best
teachers next to Professor Nigam, they are all in the same line
At that time, there were time rates M. V. C. Sastri
was in your department and Nigam from our department
and Rama- Vijaya Ramachandran in Physics
No, no Physics, Physics Physics was Rama.
Ramseshan, Rama Sastry.
Rama Sastry, Rama Sastry was there,
all the three they used to be
very friendly and your M. V. C. Sastri used to say
in the same wing as we were in the beginning stages,
M. V. C. Sastri lab was, catalyst lab was
in the second floor of our department where our
HOD’s office is there. Ok.
Just on the other side,
Professor M. V. C. Sastri, we used to meet him every day,
every day we used to meet him.
And then, we enjoyed.
So, all the three.
So, we had connections,
inter connections and all that.
So, what about the faculty members who joined
later say in the years of 80. Later I don’t have much of
80’s to 90's. Idea about them.
before you retired in the Department of Mathematics.
Because now, I you know now 20 years have passed
since I retired. Yeah.
I think 20; 20 years I have completed.
97 I retired. 97.
97. So, when I joined,
you were there, Yeah, yeah, that time I retired.
I retired at that time. Ok.
So, I don't know the present I except
Kulkarni. I think Kulkarni is also retiring you know. Retiring yeah.
Kulkarni is shortly retiring, and the
P. V. Subramanium has retired already.
Most of them have retired.
And only one or two whom I know Kulkarni is retiring
and I don't know Thamban Nair?
He is there. He is there.
Yeah. He is there.
So, some two or three people,
but I don’t have much of contact with them.
Ok alright so.
When did you become Professor?
Professor I was in 90. 97?
97. No not 97,
94 or 90.
You retired in 97.
Yeah, yeah,
90; 97 September I retired.
Yeah. But there was a rule that you should,
you can go on till the next academic year.
That is alright that is. That is how 90.
That is not counted. So, 94 or so, 94 or 93,
I don't remember the date.
I was an Associate Professor also.
See we had Assistant Professor,
Associate Professor, Professor like that.
I see.
So, myself and Raghav Rao came through all the steps
not jumping and all that STA, Lecturer, Assistant Professor,
Associate Professor, Professor so, like that all the.
So, you have been engaging all the time in teaching,
what were your hobbies then?
Hobbies of course, I never had I used to enjoy teaching only.
Teaching.
Yeah, yeah even now, I enjoy teaching.
Ok.
Even now, some students come to me from schools
of course, I teach them I say whenever I am here,
you can come, and get my help.
So, those who are known to me and near my houses,
they come and learn for 11th standard or 12th standard
Mathematics and some Engineering College students also come
and asking some doubts about matrices, determinants all these.
So, you whenever I have a free time, I
call them and then, I help them whatever doubts they have.
Ok. I help them.
Ok ok. Where you involved in I mean
teaching students for JEE?
Yeah, yeah,
it was there I will tell you.
See in the beginning
when we were in the campus so, at that time,
people from the campus they had our Director’s sons,
many of our Director’s sons, they used to come to me
and to get a like that and then, there were some other
staff members who were interested and saying sir, we will.
So, at that time, myself, Narayanan and Ramabhadran,
we were asked to help the students,
but the at that time, we had to get the special permission
from the Director because outside we cannot go and teach
in fact, there was one Brilliant Tutorials
you might have heard about that.
Brilliant Tutorials person came Taanu came here,
when I was a teacher here and then, he said
why don’t you come and teach me,
I will give you four times the pay that they are giving you.
I said I don’t want four times your pay and all that,
I don’t want to come there and teach.
Then I-I said if you want any help
go and get the permission of the Director,
Director has to give the permission, then only I can come.
So, he he knew that when he comes to the Director,
Director will not permit so, he went away,
but then, there were some staff members in the institute
whose children and whose relatives children
they were interested in coming and learning
from me and Narayanan and Ramabhadran. Ramabhadran
because there was a of course, I did not want to
go into this earlier, there was a questionnaire by Pandalai
when he was the director and he had asked the students
without mentioning to other staff members,
who are the best teachers in the departments?
So, in each department, each one was selected by the students,
by the the students gave their names and
my name was in the Physics.
Maths Department. Means Mathematics Department,
Ramabhadran's name was in Physics Department
and Professor Narayan’s name was
in the Chemistry Department.
So, I-I know the students
who gave because they were all very good students of mine
in B.Tech. and so, when they gave that name,
then there were he said that by
getting the approval of the senate,
we will present them with some memento and all that
so, that was circulated.
And then, there was a furor because
people said without asking anybody,
how did you ask the students to give
and then only the evaluation of teachers came up
so, then he said if you dont like that
so, let it be on record that these are the
three best teachers, let it be there,
I will not give them any token or anything like that
or presentation memento.
Then, the the other
the questionnaire came and then, there you
we were asked to give to the students and
get their response and all that that is how
it went on and at that time also,
myself, Ramabhadran see we were we were
teaching not for the sake of anything;
it was only because of pleasure in teaching.
And so, the staff member all of them they said that
they should be permitted to take classes at least for us
and Professor Pandalai's son was my student also,
he was there and he used to come and study with me,
many of the students the Kuriacose daughter
and your Rajaram, Rajaram’s two sons who were in America,
they came to me and they were learning
from me for JEE, they were coming.
And other some some staff members
here who were Mechanics and all that their sons used to
come and so, I was teaching them free,
but then, when they said that you should not be stopped,
then they were we said go and ask the Director because
there people are saying that we should not take.
So, the Director said we give permission to the three
to teach, but only thing is they should not go for setting
of question paper or correction of JEE examinations.
That's what the Director gave a ruling.
So, of that time, we started helping again
so, people knew about that.
So, that was how it was stopped and started again.
It was there.
So, what about your children,
what are they doing? Yeah, my son is a student of
your husband Vivekananda College, he did his B.Sc.
and he joined IIT for Mathematics and he got
the Governor’s medal in the year 92,
he passed out of M.Sc. Mathematics; M.Sc. Mathematics
and he is now the Executive Director
of Morgan Stanley in United States of America in New York.
So, from 92, he has shifted there, and he got his Ph.D.
from New York University and he is working on
Financial Management now.
Ok.
Near the time square in New York,
he is there as the Executive Director.
Nice. And my daughter is a Mathematics graduate
from Queen Mary’s College.
And she is the university first in Mathematics.
In that in the University of Madras
and she got all five centums in the subjects
complete and that is the university, first rank all through.
Oh very nice.
All the five subjects in the final year, she got centum.
Ok. In the Mathematics and she is
now a freelancer in Mathematical training.
And she is working in Bombay,
going to different places in the world, she is there,
and she is married to you you must be know him
there was a STA in a ; there was a STA Senior
Technical Assistant in Electrical Engineering Department
and his son is Kothandaraman Ok.
I have forgotten his name; he is no more;
he is no more he was.
So, so all the students of my and my grandson,
he is now with Sunder Pichai in Google.
Ok.
Google.
He has got his doctorate in Mathematics.
In Cornell University Ithaca.
Ithaca Cornell University,
he is there and. Very nice.
my daughter in law is with
Facebook Company there.
So, that is why it is still continues.
Yeah, in spite of me.
Yeah, so very happily.
Yeah, yeah tree of Ok,
the love for Mathematics, passion for Mathematics. Mathematics.
It still continues. Venkat Sir, you have been working for
the past 4-5 years, I mean we have been there for
the last 4 years; my granddaughter was the student
M.Sc. Mathematics. Ok.
She passed out in I think 2016.
2016. She did her fourth semester in Denmark, Copenhagen.
Ok. Her name was Parvati Thilakkan.
Ok. And now, she is throwing her Ph.D. in doubling.
[FL] doubling. M.S. there. Financial Mathematics.
Financial Mathematics. Yeah, yeah
Ok nice. That is how Mathematics connection.
Yeah, yeah Similar did not study in IIT Madras. [FL].
Do you have any suggestions
and advice to younger generation?
You know I don’t have any,
the only thing that I tell everybody is.
That no student is bad in Mathematics,
every student is equally good, only thing is
in the 4th standard to the 7th or 8th standard,
if there are good teachers who teaches them.
That is the stage where they get the fear in Mathematics
and what they do is whenever you give a problem,
they try to solve and look at the answer
and if the answer is correct, they leave it.
And if the answer is not there, they
change the 7 in the numerator and
4 denominator and then, go on changing it and
and that is how they get the fear,
the fear in Mathematics can be completely removed
if the education from the 5th standard onwards
to the 8th standard is taught by very good
and enthusiastic Mathematics teacher.
If it is done, no student will think about
fear in Mathematics.
That is my sincere opinion.
You; you have not you are written any textbooks?
No, I have not written, I have not; I will tell you
the reason why I don’t want to write the textbook.
The reason why I don’t want to write the textbook is
you you can impress the student, make him understand
it nicely when you are in one to one contact with him,
one to one contact, not one to two and one to three.
One to one contact if you have, the students will definitely
understand whatever you say, but if it is one to many,
then it is not possible and it can always be done
and I have got number of examples of students
who have done extremely well,
I I will tell you about an example
There was one student at Bombay
where my daughter is staying,
I used to go there in the vacations from
in IIT quarterly vacation, half year vacation,
I would go there for 15 days and that
boy was not good in Mathematics so, his
mother who was a colleague of my daughter,
she brought the her son to me and then said sir,
5th standard, he is finding it difficult.
So, whenever I used to go there,
this fellow will come for 5 days or 15 days
or 10 days and you know, he has got the
Harvard’s best medal in Mathematics.
Very recently.
Harvard’s best medal in Mathematics,
Harvard Universities and you know what has happened is
that fellow is very weak in other subjects
in English particularly and so, they
failed him and they said that this fellow cannot be
given, then they said as a special rule,
English is not going to matter much in Mathematics
though of course, he has to understand,
but he has done very good work in Mathematics
and so, we should be he should be given.
So, that is how he got the this last year or so.
He got that and then, he thanked me from there.
So, that boy from the 5th standard onwards
right up to the 12th standard, after that
he has gone Abroad, to the 12th standard,
he has been continuously getting my help
and I will always teach him in such a way that
it is a topic which is quite logical,
there is no question of mugging up anything or anything,
it is just logical, from this you get this,
from this you get this that is all.
So, that boy he used to appreciate
and then now, he has got.
So, like that there were four or five examples
of mine where students have done extremely well.
Even when I went to America now,
my old students had come and they have
thanked me for teaching them in Mathematics
because they are teaching Mathematics
to the students there, see that is the
so, I-I used to enjoy that very much
because whatever you have, if you transfer it,
then automatically they will pick up.
It's a nice subject, I don’t say that only
Mathematics is, but Mathematics because I know it,
it is such a nice subject and I don’t remember anything
now, I tell them very honestly, I don’t remember anything,
but only thing is the way it is derived,
I remember that. That is how you can make them
rid of the fear of Mathematics.
Ok.
That is. Are you invited to give lectures of the NPTEL?
M?
NPTEL.
No, NPTEL, I am not associated,
I think P. V. Subramanyam is associated with that,
but I I was not because I-I was never here in station.
Yeah, yeah of course, that was started after your retirement.
After my retirement yes, yes yes. Recently.
P. V. Subramanyam; P. V. Subramanyam was giving. Was given.
I think that was. Many of our faculty members have given.
Yeah, yeah that is right, I was I retired; I retired much before that. Ok.
Much before that I retired and then, I was in States,
every year I used to go, 6 months I will be in States
and 6 months here and when I go to States,
students will come from the Hindu temple there,
there is a Hindu temple in New York
and you say that Venkatarangan,
Professor Venkatarangan has that come here
so, alumnus of IIT if they want to meet him, they can come.
So, I will put that and then, there will be some
students from Pakistan, from South Korea,
they will all come to me with Mathematics books.
Sir, please teach me this, you will be surprised,
in America in Queen’s when I my son was there
so, he will put an advertisement by saying that this is
my father who has come from IIT Madras,
he was a Mathematics teacher and then,
those alumni who had been associate with him,
they can come and meet him in this address.
And the alumni will come, along with them,
there will be some people who will be coming,
and I used to teach Pakistanis.
I used to teach Pakistanis and South Korean students.
Yeah, yeah, yeah.
Korean students are good in Mathematics.
Extremely good in Mathematics,
their standard is very fine, extremely good
and they used to come and enjoy
and there was a very good school in New York
and just one student came to me
and there was some wrong question in the question paper,
I pointed out and I said this must be the correct question
so, you go and tell the teacher you please correct this.
And then, when he said that then you know the next day,
some five students come to me from the same school
saying sir, you please help me along with this boy,
you can help me and when I went to Dubai,
there was some student who was very weak in Physics.
And Physics is nothing but Mathematics mostly
your dynamics, statics and all that so, I used to go
and teach there that particular student
and then, he was very much interested
and you know he got 100 marks in Physics
in the next examination.
So, what I want to say is that if you take interest
in teaching, automatically that interest will definitely
create some flutter in the students. Ok.
And they will definitely, remember you. Yeah, yeah
That is.
One doubt from both of you.
Yeah. Has the
Astrophysicist Professor Chandrasekhar. Yeah, yeah
Has he visited Mathematics Department
after getting the Nobel Prize?
He to the our department you mean?
Yeah. He came here. He came.
Chandrasekhar was he,
don’t you know? 82 he came.
Yeah, yeah. That time he had not got the Nobel Prize.
No, Nobel Prize was given to him,
but it was proposed and then, it was given to
him next year or year or later.
83. Yeah, yeah, it was
in Physics lecture theatre, he gave a talk, I was there.
No, no it seems he seems to come again in 89.
89. And Physics Department seems to have arranged the seminar.
And Professor Majhi was telling.
Photographs were taken by the department.
I was not able to confirm it.
No, but he was there, I-I attended that meeting also
because I I had studied the book of Chandrasekhar,
there is a book on Stability. Stability.
Stability theory, there is a.
Yes. Big book on Stability theory, such a wonderful book.
Yes. So, because I had to take some problems from that
so, I worked in that book,
I had took some examples from that book
and then, I solved some problems using what is called as the
local potential method developed by Prigogine in Mathematics.
See this is how it happened.
I see. So, Chandrshekar has worked in astronomy also.
Yes sir, yes. Astronomy, black hole theory and all that way.
Ok. Yes,
So. I don’t have any other-
So, do you would you like to share some more experiences.
No, no not specially because I have already, I think
taken a lot of time.
Thank you very much.
Thank you. It was wonderful talking to you and we really-
In the last 50 to 60 minutes.
We really had seen and known the golden days of your career.
Yeah, yeah In Mathematics Department and this institute,
Thank you very much. Thank you,
thank you. Thank you all very much. Thank you.
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