Central Board Of Secondary Education [CBSE] — 12 class result 2021

I got 87% in 10 and 84%in 11 and average no.in practical is 28 and I got 76.8 % in 12 so I blame on school that they sent good numbers to their favorite students and apart from that the number to other students which were not favourite was bad.
So I appreciate you to know my 12 number Which was sent through school to cbse portal because I got very good marks in pre board and I would let know about my marks that would sent you by my school so I should case on them.