Hi aspirant,

There are many boards provide schooling in all states like state board of the state, CBSE and others. State board course structures will vary state to state. In 11th and 12th standard CBSE, you have to take English, Physics, Chemistry and Biology as compulsory subjects and the rest of the subjects will be the optional. But most of the schools don't allow the students to change their subjects after the admission process closed. So decide before that.

Hope it helps.