Hey,

With 520 marks, you may get a rank between 37780-38736. You can check it here https://medicine.careers360.com/articles/neet-result-marks-vs-rank

Last year the cut off for OBC in Terna Medical College was 519 marks. So based on this you may get a seat in Terna Medical College, Navi Mumbai. Keep in mind that cut off varies every year. Yes, hostel and mess facility is available in this college. The fees in Rs. 7,00,000 per annum. To know more about Terna Medical College, check here https://www.careers360.com/colleges/terna-medical-college-navi-mumbai

If you want a list of colleges in which you will get MBBS/BDS seat, you can use NEET College Predictor https://medicine.careers360.com/neet-college-predictor?icn=QnA&ici=qna_answer