Ky bseb me improvment exam me practical dena hota h

No,it is not necessary to give practical exams in bseb if you pass your previous practice exam earlier you need to give only paper in which improvement requires if you fail in theory paper you need to give only theory paper not practical.

Bihar School Examination Board (BSEB) usually provides an opportunity for students who score low marks in the annual examination to improve their score through a supplementary or improvement exam. To confirm the information I suggest you check the BSEB's official website or contact your school for the most up-to-date information on the schedule and details of the improvement exam.

ALL the best..