With a score of 512, your rank might be approximately between 38822-44553 . This is an expected rank range: https://medicine.careers360.com/articles/neet-result-marks-vs-rank . In 2019, under All India Quota, a score of 594 secured a seat in NEIGRIHMS under General Category. So with 512 marks, your chances are less. Now this is based on 2019 data and cut offs change every year. Cut offs change every year depending on various factors such as no.of Candidates appearing for the exam, no.of Candidates qualified, top NEET score and difficulty of the exam. For a complete list of colleges that you may have a shot at, please use our College predictor: https://medicine.careers360.com/neet-college-predictor?icn=QnA&ici=qna_answer