Add 1.5 K more and get this instead :
http://www.flipkart.com/sapphire-amd-ati-radeon-r9-270x-boost-oc-2-gb-ddr5-graphics-card/p/itmdtp5j69ssu9gj?pid=GRCDTP5J69SSU9GJ&otracker=from-search&srno=t_1&query=saphhire+r9+270x&ref=e025ecf8-d9fb-48c8-a74f-52b8bd79759b
This can max out almost every...
I'm guessing that the res you play at is 1080p and R9 270X has no problems handling all modern games out there at Ultra settings at playable frame rates (over 30 fps). Unless you are playing at a higher res, it doesn't make sense to go for R9 280X.
It's like the telecom companies want us to go back to the primitive ages and go and meet people in person instead of calling them... 1 paise per second was a big thing back then, now you've to pay a bit of money for that in my telecom circle.
Heck even BSNL, which is supposed to not reap...