Hello candidate,

Since board examination are very important and can be attempted to only once in the life of an individual, so you are not allowed to give board exam from two different boards in two different streams at the same time.

If you have already appeared and passed from the CBSE Board examinations and still you want to appear for Bihar board, then you have to do re-admission yourself from class 11th onwards and have to scrap of your CBSE board papers to get admission again.

Thank You!!