I'm from india and for 8000 you'll get a 6770 as a best deal on ebay.
flipkart sucks anyways, yaar!
Grab that card, its low on power consumption and a decent performer....or if you can spend more, 6870s are available at 12000 or so....dont even look at nvidia because you can get a better performing radeon than a geforce at same price. The relative prices of nvidia and radeon varies vastly in india than in north america.
what about hd6850 ? ....