Central Board Of Secondary Education [CBSE] — Deduction of marks in class 12th result 2020-21, because o[censored]nvalid evaluation process

As per cbse they have chosen 30-30-40 formula for evalution of class 12th result, which is 30% marks from class 10th and class 11th and 40% marks from class 12th midterms and preboards, but in my school "British fort foundation, Jabalpur, M.P" the evalution of marks is done from some different and sense-less evalution criteria by cbse, they have done injustice to me and my classmates, they have evaluted our marks by taking 30% marks of class 10th only and did not even have taken class 11th and class 12th results for evalution, because of this our marks in our marksheet have became worse, my result is so bad that i even got compartment in mathametics. I got 64% in 10th and 76% in class 11th and have got around 85% in class 12th midterms and preboard exams and even after achiving these marks i got compartment in mathamatics. I am suffering from mental pressure and depression, i request you to please help me out with this problem, investigate this case and upgrade my marksheet with the marks evaluated through 30-30-40 formula.🙏