Central Board Of Secondary Education [CBSE] — Cbse class 12 RT in chemistry subject

Why and how I become failed in chemistry subject in cbse class 12 result
I am first class student since nursury to class 11th and I got first class marks in all subjects in cbse class 12. School principal and chemistry teacher are responsible for my fail in chemistry subject because of lack of school fees and not attending the coaching of school teacher.
Respected sir,
Please pay attention as i unable to attempt for college admission. It is shameful for me and I am so depressed. It will destroy my carrier. I want to know the procedure way and base of making the result of my class. please try to do the verification or correction of my result. As my result is not according to the marking theme of cbse class[protected].