To be eligible for B.Sc. (Hons.) Biochemistry at Delhi University, you must meet specific subject combination requirements in the CUET UG exam . Based on your current subjects (Chemistry, Biology, and English), you are not eligible because you are missing a third mandatory science domain subject (either Physics or Mathematics).

Mandatory DU BSc Subject Requirements :

1. Physics (Mandatory)
2. Chemistry (Mandatory)
3. Biology/Biotechnology/Biochemistry (Mandatory)
4. English (List A)