Okay so for me in the UK, INR 5000 is about £60. You won't be able to get the latest series of Graphics Cards eg HD 7000.
So for AMD I would recommend a HD 6670
And for Nvidia I would recommend the Geforce GT 630
Sorry, you will have to search for these yourself as I don't know where you buy PC parts in India. But they are both under INR 5000