Due to less number of seats in agriculture, fisheries, etc.The Bihar Combined Entrance Competitive Examination (BCECE) cutoff closes to rank under 5000 for general category so ot is difficult for you to get any government colleges with this score.

However you can apply to private colleges which accepts bcece scores for their undergraduate courses you can get all updates regarding counselling process here

https://engineering.careers360.com/exams/bcece