Central Board Of Secondary Education [CBSE] — Irrelevant allotment of marks

Address:

4 Sita building flat no.11 Y.N Road

I am student of 12th class from Indus world school, Indore of batch 2021 with roll no. 19632096. I question the marking in mathematics subject by the authority. I have given each internal exam with scoring average marks also my 10th and 11th class result is average, still I am given less than passing marks in mathematics and on the other hand the students of my class who haven't attempted any internals has got 70 plus marks. How can this be possible?. Kindly consider this matter as this has question of my career and my career will be spoiled because of the authority's negligence.