LOL
I am sure in LA they have some Indian dudes who are decent enough to get on those vids. One Asian girl from my middle school who goes to UCLA tells me she has seen some really attractive nerdy Indian guys.
You won't see many Indian guys for the same reason why you don't see many Asian guys. It's a socioecomic thing. As much as people love porn privately, there's still a huge negative stigma. Guys with more options aren't going to do it. The White and Black population are large enough that there will be enough shameless guys who will participate. But if you ever find out about them, a lot of them had serious prior convictions, drug habits, failed actors (in the 1970s-1990s period) or other shady backgrounds.
There aren't too many guys from middle class backgrounds going to delve into porn when that may very well mean throwing away much more lucrative career opportunities.
If anything I see some random British Indian or a skinny Indian pornhound coming over with a student visa and just saying "screw it, I'll do some porn!" but you aren't going to see many Indian-American guys doing it.
Remember, the only Asian guy to make it in mainstream porn porn is European and a huge percentage of the White guys in mainstream porn are from Europe or South America. So even with a population of 200 million, you won't find that many guys willing to do it.