With a score of 540, your rank might be approximately between 27994-32317 . 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, in 2019 under State Quota, after Round 1, the cut off for EBC Category was 560. If we go by that, GMCs might be difficult but you might get a seat in Private Medical Colleges under Govt. Quota. 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