Hello Aspirant.......,

Well basing upon your OBC rank in JEE ADVANCED, you may have the chance of getting admission into IISER Mohali, IISER Thiruvanthapuram, IISER Pune, etc in your desired branch. You must also apply for IIPE VISAKAPATNAM, IIST TIRUVANTHAPURAM or RGIPT BARELY at the time of counseling.

Hope this helps you out......

All the best:)