Hello student the link for the same is mentioned below https://bceceboard.bihar.gov.in/UGEAC19_COUNPORTAL/

The Bihar Combined Engineering Competitive Examination Board (BCECEB) is responsible for conducting competitive examinations and counselling for admission in various professional courses of Medical, Engineering and Agriculture streams in the colleges of Bihar. Admission in Engineering and Medical colleges of Bihar is done on the basis of ranks scored in JEE (MAIN) and NEET (UG) exam conducted by National Testing Agency . Earlier BCECE board used to conduct separate examinations for admission in Engineering and Medical in Bihar based colleges.

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Good luck