i expect 510 in neet 2020.which colleges can i expect

You haven't mentioned your Category and the State that you hold the domicile of. With a score of 510, your rank might be approximately between 38822-44553. This is an expected rank range: https://medicine.careers360.com/articles/neet-result-marks-vs-rank . If you belong to General Category and UP, it might be a tad less for this score. But there might be a chance for a seat in Karnataka and Tamilnadu. Having said that, 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