Hii,
Scoring full marks in Biology in CUET is a great achievement, and it shows your strength in the subject. But low scores in Chemistry and Physics may affect your chances for some specific science courses, it doesn’t mean that you cannot get admission anywhere especially when you're open to exploring a variety of science-related courses.When it comes to getting into reputed central universities like Delhi University (DU), Banaras Hindu University (BHU), and Jamia Millia Islamia (JMI), admission is typically based on your best-of-subject scores, depending on the course you're applying for. For many B.Sc. (Hons.) programs, especially in Biology-related fields like Botany, Zoology, Environmental Science, or Life Sciences, your Biology score will be given the highest weightage.
At DU, different colleges and courses have their own subject combinations and cutoffs. If you're applying for a course like B.Sc. (Hons.) in Botany or Zoology, many colleges may consider Biology and English as core subjects and might accept low Chemistry/Physics marks if your overall percentile remains competitive.

On the other hand at BHU, they conduct CUET-based admissions, and you still have a fair shot for science-related courses, especially in the biological sciences domain. They often publish a merit list that gives more weightage to your best-scoring subjects.
Jamia Millia Islamia offers various science programs and some vocational or interdisciplinary courses that may not strictly demand high Physics and Chemistry marks if you're strong in Biology.

Since you're ready to take admission in any science-related course, consider looking into programs like:B.Sc. in Life Sciences,B.Sc. in Microbiology or Biotechnology,B.Sc. in Nutrition & Dietetics and more You can check

Also, you can check state universities or other central institutes where competition may be slightly lower and cutoff combinations may be more flexible.

Thank you and all the best for your admission!