Hi aspirant.

I assume that you belong to Andhra Pradesh. First of all on scoring 515 marks in such a competitive exam like neet. Considering your score and your category you have fairly strong chances of getting a government seat in state quota. Now the cutoff varies for different colleges. It can range from 450 to 530 . So let me update you with the cutoff for some of the major government and private medical colleges of your state in the state quota:

ACSR GMC Nellore - 464

Andhra government Medical College Vishakapattanam - 530

Apollo institute of medical sciences Chittoor private - 454

Dr PSS Vijayawada private - 474

Also you can use this link to predict your college:

https://medicine.careers360.com/neet-college-predictor?icn=NEET_clgpd&ici=NEET_text-mapping

Good luck!!