Hello student,
You have not mentioned which category you belong to. Usually Tamilnadu is one among the states which has a high cut off scores even in private colleges. For general and obc, a score of 500 or above would remain a safe zone and 400 or above for SC or St. However you can go through the following link to know about the cut off's and ranks for the previous years and calculate your chances of selection
https://medicine.careers360.com/articles/neet-cut-off/amp
Good luck

National Eligibility cum Entrance Test

Eligibility | Application | Result | Cutoff | College Predictor | Counselling | Answer Key | Accepting Colleges

Get Updates Brochure