Yes Candidate Congratulations for Such nice marks. Usually Candidates can get seats in government medical College if he/she have scored above 500 +   marks in NEET Examination. And since you also have a quota then surely you Will be getting good College. Here is the NEET College predictor link by Careers 360 where you can predict your COLLEGES.

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You haven't mentioned the State you hold the domicile of. This is important because every State has different cut offs. With a score of 500, your rank might be approximately between 45023-51086 . This is an expected rank range: https://medicine.careers360.com/articles/neet-result-marks-vs-rank . Now regarding the Colleges that you may have a shot at, you can get GMCs of the State you hold the domicile of. 500 is a good score. 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 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