Dear Anshika,

Actually it depends the the course you want to choose. Generally DU take top four subject into the consideration include one language subject also. If you want to take admission in Bsc maths then maths subject would be compulsory same for the physics and biology besides these you can and any three other subject from which one you got more marks including one language subject also.

Still if you have any query the you can drop your message in the reply box.

Hope you find it useful.

Good Luck :)