I've read hundreds of essays about this, and India's "brain drain" and written several myself. What is common to all of them is that they forget to take into ac

I've read hundreds of essays about this, and India's "brain drain" and written several myself. What is common to all of them is that they forget to take into account the background of most IIT grads - middle class and lower middle class. So, it's way more important for them to get high-paying jobs and to help their families out, than to stay in India and help improve it. That will happen, with time, as the standard of living keeps increasing and the same financial pressure doesn't apply to new IIT grads.