Central Board Of Secondary Education [CBSE] — Regarding unfair and unsatisfied results of cbse class 12 th session[protected]

I am Isha, a student of INDUS PUBLIC SCHOOL, MEHAM (HARYANA ). School code :40629 . I got my cbse class 12th result of session 2020-21 . I am really unsatisfied with the result as I only got 86.8 % and I deserve much better As criteria for result was based on previous year score I got 91 % in class 10 cbse board of session 2019. I don't know how but other student who scored much less marks then me in class 10 are now on top list and got 90+% . This is really unfair. Cbse is having records so result should be fair. I am totally unsatisfied with this result.
Action should be taken against this for justice for students and if it comes for conducting exams for improvement so it should be compulsary for every student .