Obviously cutoffs change every year as they depend on many factors like the number of candidates appearing and also the paper level, etc. So I cannot tell you the exact marks but I'll give you some proper range. Keeping in mind that you are from obc category and you want private BHMS colleges, so you'll need to score around 350 and above to get those colleges. Try to score 400 and above so that you don't need to stay in fear of losing a seat if competetion increases since you know jipmer and AIIMS have also merged this year into NEET.

Thank-you. Best wishes.