Help Amit Gupta (Photojojo founder) find a bone marrow donor

Amit's a friend-of-several-of-my-friends (we overlapped at Amherst for 3 years), so this has been making the rounds within my social networks. It's interesting to see it show up here - I kinda wonder if I know the submitter but don't know that I know the submitter...

Getting on the National Barrow Marrow Registry can be very rewarding in ways beyond helping just one startup founder. I'm not of South Asian descent, so I can probably do nothing for Amit, but I registered at a marrow drive at Google a couple years back, and it was literally the most painless thing ever (just a cheek swab and fill out a form). Actually donating marrow is not quite so painless, but I had a friend who donated stem cells, and she said that despite the discomfort, it was one of the most rewarding things she'd ever done.

I'm Indian and already on the marrow.org donor list. Is there anything I need to do to see if I'd be a potential match?