Hello puja,

Bihar medical Colleges have 85% state quota seats and 15% all India quota seats. To qualify neet you should get at least 40th percentile for obc-ph category. 

Bihar state 2018 neet cut off marks in 1st round of counselling was 472 while in 2nd round it was 462. 

Hope this answer was helpful. Feel free to reply in case of any further queries.

Thank you

Good luck!