 Ladies and gentlemen, welcome back to the last afternoon of the course. Two parts to this afternoon, first part I'll be showing you some very nice videos, recordings. These recordings have emerged from some of the meetings that we've had here on IIT campus. One is as recent as January of this year, where we had a national forum on air quality transport and health, where we had speakers from across the country and including some people from UK and this project is funded by British Council, so that's why we could have some of the friends from UK also visit us. There are two half an hour, about half an hour presentations, one on health issues and second one is on the national perspective of what's going on in India from the Central Pollution Control Board. And the third video is a little older, it's about five years old, when Sri Jairam Ramesh was the Minister of Environment and Forest and we had invited him to IIT campus because wanted to see if we could do some kind of a joint effort between IITs for environment. So the idea actually came one time I was going through the Gymkhana grounds and there's this huge display board over there, scoreboard and on top it said Inter IIT sports meet. And we've had Inter IIT sports meet, in fact last year we had the 50th, the Golden Jubilee of Inter IIT sports meets. So that is the only place where IITs I think do think something under one banner, other than JEE, the entrance exam. We thought maybe a good idea that we could get all the environmental faculty, colleagues from all the other department together and start presenting ourselves as a national resource for issues that would be required at a national level or at a state level. We'd gone to meet with Sri Jairam Ramesh for some other meeting and at that point in time I happened to mention to him and so he said he gave a certain date which was suitable for him. So we came back and then we actually had this meet where all the 7 at that point in time, 7 IITs had come and then he gave this talk to the public at large, so students at large. Of course I had another agenda in having him talk to the audience and the agenda was that Sri Jairam Ramesh, he himself is one of our alumni. He graduated from here I think in 1975, Mechanical Engineering. And so he also came back as an alumnus. And so he, after doing a BTEC in Mechanical Engineering, for him now to be the minister for environment and forest, it is an interesting career path. So one of the things I wanted to do was I wanted to let students glimpse of how you could actually choose a particular path provided you were committed to it. So I was hoping at least some people in the audience would get excited about it. So I'd like for that particular video to be shared, he finishes his talk and then after that he has an interaction with the audience. And I'm not going to have enough time to be able to show you the entire interaction. It's a 1 hour 27 minute video, I'll probably show you only about 40 minutes of it. And I'll give you the link and you can continue seeing the rest of it at your leisure. So I'll be quiet now, so there are 3 videos, first by Dr. Salvi, second by Dr. Gargawa and third by Sri Jairam Ramesh.