 I am Smita Singh from Amrita School of Engineering Bangalore, I am the workshop coordinator here. We are extremely honored to have amongst us Professor Gayathondey and Professor Chandrasekharan for the validity function. I would now, on behalf of Amrita School of Engineering, I would now like to welcome Professor Chandrasekharan and Professor Gayathondey to the stage please. Welcome you sir. Now I would like to invite Professor Gayathondey to introduce our cheese guest. It's my pleasure duty to introduce my teacher, colleague and friend, Professor VSC or VS Chandrasekharan. I think for introduction I need to go back about 44 years, more than 44 years, July 1969 when our world lines first crossed each other. I was a student in Applied Mechanics or Engineering Mechanics course at IIT Bombay and he was my teacher. At that time we had a very solid course of 4 hours a week, 3 lectures and a tutorial for 2 semesters and I think all of you are familiar with the book by Shames, Irving Shames on Engineering Mechanics. That book was taught to us and we absorbed it and enjoyed it cover to cover and he's a witness for that because he was my teacher. I later on became a teacher myself and looking back, you know it turns out that there are a few subjects which go do you on, keep your interest on in engineering. Although I was in thermal engineering, took interest in thermodynamics, heat transfer and energy conversion of the non-thermal engineering courses, the few which still remain at the back of my mind and I look back with very fond memories as engineering mechanics course. Professor Chandrasekharan had joined IIT Bombay in 1966 after doing his BE from NIE in Mysore. Later he went to Liverpool and did his PhD. I think throughout his career he was in IIT Bombay, became head of department of civil engineering, then dean planning for one term. He's a geotechnologist, geotechnical engineer, that's his specialization and one of his very significant contributions to not only IIT Bombay but to India that is set up the first geocentrifuge in India, the national geocentrifuge facility. At that time I did not know, I could not even imagine that 44 years down the line, in some other way our world line is again coalesced, we will meet and I'll bring him here for this validity function. So may I again say that we are more than pleased to have him here and now I look forward to his validity pre-address, Professor Chandrasekharan. Professor Gaitonde and head of the department of Amrita School of Technology and France. It gives me great pleasure to connect with you in the form of validity function. I go back to my old days of teaching students. Engineering analysis depends heavily on engineering mechanics. That's one of the reasons this engineering mechanics course is included in many of the disciplines like civil engineering, mechanical engineering, aeronautical. Now I learned in Amrita School everybody takes it. Now this program is timely because of the usefulness of the course and the connection with the large number of institutions. The program has very really lofty goals. It wants to train the teachers and that is a great responsibility. Training the teacher is a great responsibility. And I am amazed that about more than 7000 teachers across the length and breadth of the country with some 200 art centers are now simultaneously interacting with respect to this program. This is really mind-boggling. I have thought of, I have conducted some courses, ISTU courses just from 30 participants or 50 participants are the most used to come in a summer. Now this time you are connecting with 7000. That's really mind-boggling. The other point which I want to make is the responsibility. This course puts on the course instructors is very high because whatever we do is transmitted to so many people and everybody is listening. Now in this connection the course instructors have a very heavy responsibility and the course coordinators, center coordinators have got a responsibility which is very very high. Now I must congratulate all of you, the course coordinators Dr. Inamdar, Dr. Banerjee for coming forward to conduct this program and the coordinating at the various centers and also the course coordinators in Amrita Institute of Technology and also the various centers have done a tremendous job. This is really to be complimented and congratulated my best wishes to you on this. Now real life engineering is something different. Originally we tried to model the real life problems into mechanics problems and seek the solution through the mechanics. The first step involved is the mechanics problem. Actually the students are stimulated when you deal with real life problems. The responsibility of the teacher is to translate the real life problem into simple mechanics problem and then get a solution to that using principles of mechanics. Of course the principles of mechanics are not many and it is easily understood. But then one must follow a logical steps. There are what is known as three Ds. First is data, data for the problem. Second is the desired results. What are the results you want out of the problem? These two steps constitute what is known as the formulation of the problem. Otherwise you would have read, I think I know of one professor Mclechlan who says that if you define the problem, if you formulate the problem correctly what is available, what is to be obtained, then half the problem is solved. The rest of the problem lies in solving the equations and getting the results. Now we follow a few steps after these three Ds. First is data, second is desired results. Third we talk about diagrams. Engineers must have a feel for diagrams. They must define the problem in the form of sketches, drawings. Then only they will get the grip of the problem. And then of course one should write down the equations that are applicable to the problem. And that is governing equations for the problem. And then of course one obtains the analysis of the problem, one obtains the results. Then of course the results itself has to be interpreted. One has to interpret the results and that is the conclusions. So all the professors insist in engineering mechanics that you should follow these steps very nicely and you should make it a point to teach the students you follow these steps and you are bound to get at the solution. Of course the following steps there is also a saying that you should nicely write down the steps. Write your notes or your solution to the problem should be neatly laid out in a piece of paper because this helps the further insight into the problem. Now actually we would have known when you are correcting examination papers what I used to do is get the best students paper and keep it aside. And have a look at that. Always all the good students have systematically approached the problem and solved the problem. Even by looking at it you feel like doing good marks. And that is a habit. You have got to inculcate this habit and the engineers definitely require it because the bridges you solved today are going to be constructed tomorrow and they depend on the safety of those bridges under various conditions. And then when I was learning engineering mechanics this was taught to be by mathematicians. We didn't have a course in engineering mechanics. We had a course in statics. We had a course in particle and rigid body dynamics both conducted by mathematics department. Luckily it turned out our teacher for this course was exceptional and outstanding. You wouldn't believe that we bunked these classes for the first few days because he didn't have a good English accent and he didn't dress up properly. He came in Panchakacham under Dothi and a cap on top. And I was not impressed. We have got into engineering college and then we should be taught by this gentleman with Panchakacham and cap but my seniors told me, please give a chance to him and try to attend a big class. Then I went to the first class. I felt a little better. The second class still better. Third class I was simply attracted, mesmerized. Not only me, so all of us. But time used to fly fast in his class. The class ends and then we used to feel, is it over? That was the spell he cast on us. In 1957, 1957 and Russia launched the Sputnik, he was quick to solve the problem on the blackboard saying these are all the parameters, trajectory, geometry and also the period of orbit. We were amazed. That was not in our syllabus. He said it is straightforward. You can yourself do it. And then he went in and put it on the board and we were really mesmerized. And see most of us are not gifted, gifted as a good teacher but we can train ourselves to be good teachers. Now in teaching there are, first we should know the student's mind and start from the beginning. I had ventured to teach my son metrics multiplication when he was in the 11th standard or 12th standard. And I made an attempt. I told him how to get the metrics product by taking the row elements and multiplying the column elements and putting in AIJ. He was listening to me very patiently. And then he left me and then went and told his mummy that Appa doesn't know what is row and column. He didn't tell me that and he assumes that I should learn it. So what is really intriguing the student's mind is something which we don't know. We should get at it. Yes, this is what we should start with. And that will go a long way in trying to make you a good teacher and a better communicator. Another point which I want to ask, tell you is not only you should teach the student the subject how to learn the subject. It is called the learning skill. It is said that the student should be encouraged to revise the class notes on the same evening or the earliest opportunity. First revision is as soon as you go home or the next morning you should revise what you were taught in the class. Then after two days, one more revision. After a week, another revision. The research is fine. This kind of study stays in your mind forever. You don't have to rush to prepare for the examination because you have already done it and instilled the principles in your mind when your mind was very clear and very in the earliest occasion. And you also have an opportunity of putting these doubts in a paper and get clarification from the teacher in the next class because in the next class he will ask you whether you have got any doubts. You are not prepared and you have no courage to raise the doubts. And the next lecture is started. This time you can raise your doubts but you should also tell these learning skills to the student because it simplifies his job enormously. Our director was there, one professor, director, professor Kelker. He said we were all teachers. He was addressing us in a hall. Don't concentrate on covering the syllabus. You are not meant for that. You concentrate on uncovering the subject. That will go a very long way in teaching the students at IIT. Now this is applicable to everybody. There is no need to rush and cover the syllabus. You should really instill the principles and fundamentals in the minds. This course has attempted to do it. My great compliments to Dr. Inamdar and Dr. Banerjee for venturing to teach this course in the nationwide way and I hope that you will all give your feedback. It's very important because the feedbacks, each one of you will have some point to say that it must be collected in the center and then you can put it together. There are common issues. You can remove it and then collect it, collate it and send it to IIT Bombay. They will definitely take that into mind before bringing out their final version. Again, thank you all for participating in this program and thank you for giving me an opportunity to share with you my thoughts with regard to this program. Thank you. And now I think history repeated itself when you taught me because when your teacher taught you, the Sputnik was launched and maybe he taught you Kepler's laws and things like that. Our course started just after July 1969. Neil Armstrong had just landed Okolo 11 on the moon and lo and behold, during the course of our applied mechanics, Professor Chandrasekhar very lucidly explained the derivation of Kepler's laws. And mind you, that is a derivation which I still enjoy. If I find myself absolutely isolated somewhere with a few pieces of paper, I will kill my time by re-deriving those. That's a beauty of a derivation. Anyway, thank you Professor Chandrasekhar. Chandrasekharan for quickly agreeing to being the Validic Tree function chief guest and also a great pager for us to have you here. May I also thank Amruta School of Engineering at Bangalore to agree to our request to conduct this Validic Tree, part of the Validic Tree function from here. And now as a token of gratitude, may I present this memento from the team at IIT Bombay and also Amruta is helping us out with this to Professor Chandrasekharan. Thank you very much, Amruta. We would now like to request the faculty here to share their thoughts with us. Professor Inamdar, would you begin please? I feel great hesitation to add anything after that wonderful and insightful brief talk by Professor Chandrasekharan. Though I was a student at IIT Bombay when he was still a faculty here, I unfortunately did not take any course from him and I still regret today that I did not have any course being taught by Professor Chandrasekharan. However, I feel greatly honored that he spoke so kindly about our effort. So thank you, Professor Chandrasekharan. I would also like to thank the T10 team, Professor Fatak, Dr. Mukta Atre, Sushant Sajjan and all the technical staff for taking care of a lot of logistics of this workshop. Second of all, I would like to thank my co-instructor, Professor Shobik Banerjee for sharing such a great synergy. So together we could really nicely synchronize and decide on what topics to take and how to deliver them. So I am quite grateful to him that he was there by my side and that we could together deliver these lectures. Additionally, I also like to compliment and thank the participants for being so patient for the last 10 days. So the last 10 days and many days before that, it was extremely hectic for us because we had to cover almost two semester worth of syllabus essentially in 10 days. So we had to really decide what to cover, what not to cover, prepare a lot of material, brush our concepts, keep learning ourselves. So we had been trying to do that. Of course there may have been a lot of shortcomings in this workshop. We are all learning. So kindly post your feedback and from the feedback that we hear from you, we like to improve ourselves. So what I feel personally is that that every time I teach a course, the most important thing I want from that course is to learn something for myself, get some excitement out of it and to convey that excitement to the students or the participants who are undergoing that lecture. I hope that whatever excitement I have felt for this subject, at least a fraction of that has reached to you and some of you have been benefited from that. If there is something I said was not proper, if some things you felt could have done in a better way, I would like to hear from you and again I would like to thank you for being such patient participants with this. I would pass on the mic to Professor Banerjee. I don't have anything more to add than what my colleague just shared and I was also a student of IIT Bombay and Professor Chandrasekhar was also here but unfortunately again being a structural engineer, I could not take any course from him but he was probably the best teacher that our department had so far. So thank you sir for being here today for us and now I really seriously want to thank all the coordinators specially to begin with because five days we had this coordinator workshop where we really bombarded you with a lot of interactive and stimulating sessions hopefully. We do not know yet that whether those were actually stimulating or interacting but thank you all for being patient and thanks to all those odd 7000 or more participants who have been really patient and listening to us and I was really talking to Mandar that whether we are really able to deliver anything through this kind of setup that we have and I was all the time kind of afraid that whether you are able to hear us or not. All the time we are like in a situation like live camera and action, you know that light camera and action thing that we see in movie hopefully that was actually coming back in my mind again and again and hopefully as professor Inanda mentioned that both of us are really learner we are also learning and we seriously look forward to your feedback. We do not decide on the failure or success of this workshop because for me you know success is not the position where you stand it is the direction in which you look. So we look forward to your feedback and we keep sharing our feedback we try to improve ourselves to whatever way and we should definitely try to do best to share our ideas with the students because I feel students are much smarter these days than me. So I always try to learn from them their queries whatever you know complaints they have and try to improve ourselves. So again big thanks to this e-outreach team they are really wonderful I mean I was totally afraid to in this setup to teach because there was no blackboard for us both of us was bit scared but finally you know it went well actually I think it went well and we again thank you all thanks to Mukta madam also always trying to you know kind of convince us go ahead and then you decide you know try to slow down and try to be more interactive. Professor Fatouk is not here so again thanks to him and we did hear of course about your this thing that can we come up with more courses okay. So yes I think I was just talking to my colleague it is possible to offer strength of materials or structural analysis and we will try to definitely you know give it a thought okay so strength of materials and structural analysis these are the two courses we may be able to you know take over maybe some other colleagues in the department may be able to join even from other departments as well okay so thank you all and we really look forward to your feedback again thank you. Thank you very much and now we come to the concluding segment of today's Valedictory. As you know Professor Fatouk is not here so it is my pleasant duty to give the vote of thanks for this workshop. I start with very big thank you to Professor Chandrasekaran for agreeing to our last minute request to become the chief guest for the Valedictory function. Thank you very much sir it was indeed a great pleasure to listen to you what you said is not really is not relevant only to teachers of engineering mechanics but I think it is very relevant to all teachers across the world. Thank you very much. A big thank you again to Professor Gayatunde for his enthusiasm and unstinting continued support to what we do here. He was the one to suggest that he go over to Bangalore and bring Professor Chandrasekaran to Amrita. Thank you very much sir. And again a thank you to Amrita as well for agreeing at the last moment to make all the arrangements for the Valedictory. Thank you Amrita. We look forward to your support in the future as well. And now let me thank the coordinating faculty of engineering mechanics. Thank you very much Professor Inamdar and Professor Banerjee on behalf of Professor Fatak. I'd like to request my colleagues Mrs. Jaya Gayatunde to offer a bouquet to Professor Inamdar just as a small token. Sergeant Professor Banerjee. Thank you very much for your energy and the enthusiasm that you showed in the workshop. I was watching it from various centres and it was really great the way it transferred across to various parts of the country. Thank you very much. I would also like to thank the TAs of both Professor Inamdar and Banerjee. Thank you very much for all your support. I also thank the NME ICT department which comes under the authority for their support in conducting these workshops across the country. I'd also like to thank CDEP again for giving us this infrastructure. I'd like to specially thank the eStudio team for making the workshops happen. This is admin team for making all the quizzes and everything necessary that is necessary available to you all. The clicker team has been working day and night to make the clicker quizzes successful. I'm very happy to say that out of the 7500 participants registered we have received at least 3500 responses so far. So we have a 50% result. Thank you clicker team and the Aakash team as well who has helped with the tablets. The spoken tutorial people are not here today but they have also contributed in a very useful way by giving the session on SILAP. I'd like to thank all senior managers especially all those who made trips too far of places for our surprise visits. I hope there were surprises to all of you and I hope that you will improve upon their suggestions and finally a very big thank you to all my colleagues in the accounts team and the workshop admin team. Thank you very much for making this workshop such a big success. Thank you all. So we come to the end of the valedictory session for this workshop.