Central Board Of Secondary Education [CBSE] — Not giving appropriate marks in class 10

Respected Sir,
I am Vansh Mayur Patel, student of Happy Faces Concept School, Washim- 444505. My Roll number is 15184831. According to the CBSE criteria our teachers should give marks on the basis of Current years Tests, Semister Exami written paper which is submitted in school and last year performance but I don't get marks which I deserve. I got only 85.88 % ( best of five ). Actually I must get atlease 95% of marks. After complaining in school they are saying that we sent marks to board thereafter board instructed only 40 students can get marks above 90% so cut off and submit new list. We have observed that marks are allotted on the basis of caste, personal relation, staff relatives etc. The test papers are not actually verified by the school. I am also enclosing 9th standard first page answer paper which contain marks. I also got gold medal and silver medal in Olympiad science and maths paper many times.
Therefore, I kindly request you to sir please take an action immediately against this and re-verify our results so that everyone will get marks which they deserve. Please save our future sir.