Any suggestions for GPU in the same price range?The VS series PSU isn't very good but at 550 you should be fine. You may want to consider upgrading your PSU down the line to something like a Corsair CX or CXM on the more budget end or Seasonic FOCUS Gold or EVGA G3 on the higher end.
do upgrade your PSU. My friend got his Rx 580 toasted up due to the PSU(same VS550). From india bro. It is really bad psu even if you take 750w, it will die for sure. Sell you current psu or keep it as backup and go fo CX series .So I have heard that 580 is power hungry. And of I am under powered then please suggest me any other graphics card as I don't want to change my PSU anytime soon.
+1despite what iMatty said, the new 2017 models of the CX line is not bad and actually recommended for budget builders because they fixed all the problems the original ones had.
here is the 650w version for 6100 INR
It doesn't really get any cheaper than that without going for a unit that has poor build quality.
https://www.amazon.in/Seasonic-Modular-Supply-Certification-SS-520GM2/dp/B00HG2R3FU?tag=googinhydr18418-21&tag=googinkenshoo-21&ascsubtag=_k_Cj0KCQjwnpXmBRDUARIsAEo71tRdB0B3d2NMZQ64roE1f1gX1lSSdeSInjbxuKqD6BeJU0iQRvCHg7kaAlFmEALw_wcB_k_&gclid=Cj0KCQjwnpXmBRDUARIsAEo71tRdB0B3d2NMZQ64roE1f1gX1lSSdeSInjbxuKqD6BeJU0iQRvCHg7kaAlFmEALw_wcBWhat could you afford then? give us a price range in Indian currency or dollar or just give us a link or two to decide what kind you can afford.