Hello

Yes, you can drop Computer Science in Class 12 and take Marathi and Geography under the Maharashtra State Board, but with conditions:

When it is allowed

If you are repeating / changing your subject combination and

Your junior college (11–12) agrees and offers Marathi + Geography.

You must follow a valid HSC subject group (Arts/Science/Commerce rules).

Important points to check

You cannot randomly change subjects in 12th alone.

Subject change usually needs to be done from 11th or with official permission.