That is $600.
You think you can manage to cram in a processor good enough to go with GTX 770 into remaining Rs. 15000? ($300?) ...
Add Case, Good enough RAM, Power Supply, DVD R/W, Hard Disk, SSD (Possibly?) ... I don't think its possible.
You need to spend at least Rs. 70000 to get a GTX 770 build or you may order it from USA (Shop & Ship) to India for less price but that would void the warranty of everything.