A little late in the discussion, but here goes. It's probably a case of 'beating the dead horse', but here are the reasons I believe we see so many 750+ from Indians:
1. Education is highly valued in India. As johnny suggested, the easiest way to land a job in India is to study. Due to this, most Indians are educationally inclined from a very young age and thus tend to perform well on tests.
2. There is definitely a selection bias. The Indians who visit these forums are the people who are taking that 'extra' step in their GMAT preparation. Most others are quite half-baked in their preparation. Hell, I know of a few people who have given their GMATs without even studying from the
OG! (sacrilege I say!)
3. As suggested already, *most* Indians applying for the MBA are IT engineers. So naturally our quant skills are above average. Also, since most of us have worked in the industry for about 5 - 6 years, our english isn't that bad either.
This might explain why you see
Indian/Male/26/IT/750/ etc etc so often in our forums
For the record, I thought that the Indian IT pool was the most competitive one. Apparently, its the Chinese pool that is the most competitive (in terms of GMAT score). How come we don't see many Chinese posting 750+ scores? Just a thought...
On a different note, I have heard that the IIMs do accept GMAT scores for their P.G.P.X (part time MBA) program.