No, biology is not compulsary for 11 class, ye apke interest pe hota h ap konsa subject choose krte ho, if you like science and maths then u can choose medical and non medical ,medical m apko PCB mtlb physics, chemistry, bio lena hota h and in non med m PCM means physics, chem and maths and third arts m apko alg alg subject milte h just like history, political science, hindi, sanskrit, english, economy, civics, geography and commerce me main subject accounts, business studies hote h. So bio is not compulsary agr apka interest h to lo otherwise wide subjects are there u can choose from them.

Nope! Biology isn't compulsory in 11th. Its your choice you can have Biology or Not. So from 11th you are free to choose the subject you want. Obviously, the subject you choose must be present in the school or junior college you take admission in.

In Hindi:

nahin! 11veen mein biology anivaary nahin hai. yah aapakee marjee hai ki aap biology le sakate hain ya nahin. isalie 11veen se aap manachaaha vishay chunane ke lie svatantr hain. jaahir hai, aapake dvaara chuna gaya vishay us skool ya jooniyar kolej mein maujood hona chaahie jisamen aap pravesh lete hain.

I hope this answer helps. All the very best for your future endeavors!