Hello Aspirant,

The optional subjects in 11th and 12th CBSE board are Hindi, Physical Education, CS, IT, IP. These are the subjects for Science stream. If you're asking for any other stream, please mention it.

Hii!
There are a number of optional subjects offered by CBSE to students of all the three streams of Arts, Science and Commerce.
It would be helpful if you mention the Subject stream you want to pursue.
Some of the optional subject are-
Biotechnology, fine arts, economics, maths, physical education, psychology, home science, engineering drawings, computer science, IT etc.,
Hope this helps.
Good luck!