What are the compulsory and optional subjects in the 11th science stream if I choose PCMB?

Dear friend, depending on your needs major subjects change. Ex. If you want to go for maths field your optional subject will be biology. And vice versa. Compulsory subjects include, physics, chemistry, English and bio/maths,for 5 subject requirement. But as in some cases if there are 6 subjects needed then, IP, PE, Hindi, would work.