But i have read that from this it is compulsory to include p+c+m in best 4??

But i have read that from this year ,it is compulsory to take pcm in best 4??

There is no such official announcement. You need one language subject(English in your case), subject you are taking admission in( chemistry) and 2 subjects from list A subjects( information practices come under list A + you need maths as the last subject in case you don't want physics).