Central Board Of Secondary Education [CBSE] — Not giving pcm in class 11th

My name is saranpreet singh I am from Indore (mp) my problem is in 10th class my school teachers or class teacher don't tell me that with basic maths you didn't take pcm in class 11th and without my suggestion mam tick basic maths in that paper I also tell mam to tick my standard but mam did not tick that and said that you can do better with bacis maths but I tell to mam I want pcm in 11th so mam said that you can take no problem. And now they don't giving and also ignore to give compartment standard maths exam.
Please solve my problem
My school name is Mar thoma academy school
Address 144 part 1 indore mp