Central Board Of Secondary Education [CBSE] — Impartial or faulty marks from cbse/school management : 10 th grade

My Daughter Neha Gejje of Surabhi Vidyaniketan(code: 45757) has been a better student and has been reflected in preboard exam marks( Even the school teachers acknowledged) ...BUT unfortunately, when the final results came in, she was devasted ..pl check her marks once again.
secondly, can you share, the exact process of deriving the final marks.
Unfortunately the school management is NOT cooperating to share the final marks shared with the CBSE BOARD.

Pl arrange to respond on my mail id [protected]@gmail.com

Awaiting Anxiously