Can you expand on how you help in the documentation? Mere guidance is not enough as the real advice afaik in the case of 8621 is to "hire a tax accountant". The trouble is that most tax accountants are not well versed in this as well so one's search is even harder.

Your point on India's growth rate likely to be higher than US is well received, but I want to understand something more tangible. Let's say I invest a dollar in India which grows at 7-8% risk free just using the FD instrument. At the end of each year though, US Gov will tax that growth at 30-40%. Next, If one repatriates that money, one loses even more value due to currency conversion. So in effect, your money grows at 4% most likely.

4% growth + tax paperwork hell seems imprudent. I'd like to learn what am I missing here? Many of my NRI friends don't bother investing in India. There is a serious lack of education in this regard.