The many ways of giving back
Giving back does not necessarily mean giving back in cash endowments. You could gift your passion too. If there is any passion that you are absolutely crazy about, you could share it with your alma mater. How?
Well, if photography is your passion, you could take a workshop on photography at IIT Kharagpur and share your skills and outlook with those interested. If it is cinematography, you could freely acquaint students, faculty and the IIT campus community with your special take on your area of interest and see where things go.
If things take off, the matter could go to IIT Kharagpur chapters in other cities, as far as the pan IIT meet or even further.
When it is the matter of the heart, could there be any stopping?