Central Board Of Secondary Education [CBSE] — about not giving admit card

Sir i am depressed and not able to concentrate on my boards preparation just because my school central academy barabanki is denying to give me admit card. I was passed in 2nd preboard but then they have conducted 3rd preboard so i refused to give because it effects me lot in my board preparation so kindly take strict against it so that they give the admit card. Please help sir