Hello aspirant!  Let me to inform you that there are lot of courses related to pcb group in bihar through bcece like mbbs, bvsc, veterinary, etc . So since you have not mentioned any specific details which course you want to opt then let me tell you that it's quite difficult to get government college. You can check the details for various courses here :

https://www.google.com/amp/s/medicine.careers360.com/articles/neet-cutoff-bihar/amp