Prof. Kannan M Moudgalya teaches at IIT Bombay. He is an amazing person. He is highly knowledgable and very accessible. I had the pleasure of meeting him when I attended a course on Scilab, organised by him.
Now I have two of the gems created by him. Last week I bought his book on "digital control". And now I receive a DVD containing a spoken tutorial on Beamer. With these two , I can do much better as a teacher now. You can get copies of this DVD from me. Just mail me.
I hope I will get more "gnan" (knowledge) from him in the future too.