Parul, you haven't mentioned your Category. This is important because every Category has different cut offs. With a score of 520, your rank might be approximately between 37780-38736 . 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 we need the Category you belong to and the State you hold the domicile of. So please do help us with that information.  Alternatively, for the complete list of colleges that you may have a shot at, please use our College predictor: https://medicine.careers360.com/neet-college-predictor?