Hello Maheshwar

The compulsory subjects in the Science Stream is Physics, Chemistry, Maths/Biology + English. You could opt for both Maths and Biology but you have to opt for at least one of them at min.

There are various Optional Subjects which totally depend on the school you are studying in as they are ones who provide with the options. Some subjects are:

1. Computer Science
2. Physical Education
3. Artificial Intelligence
4. Painting
5. Music etc.

Hope this answer helps! Thank You!!!