If you belong to ANDHRA PRADESH and want a seat for BVSC in Andhra Pradesh itself then you don't have 15% rather have 85% state quota reservation possible. The cutoffs change every year so marks cannot be predicted as they depend on so many factors like number of candidates appearing and also the paper level, etc. Also from this year jipmer and AIIMS are merged into a common exam that is NEET so cutoffs might go even higher more. So the best option with you is now keep studying and do give your best.. I'll say try to score 450+ to be in the race and competition.

Best wishes. Thank you.