Eligibility for bsc non medical 1st year admission and 12th percentage
The eligibility to do B.SC is that you need to pass your 12th exams with atleast 60 percent marks in science stream but admission in specifically University of Delhi is on the basis of cut-off percentage of different colleges.
Hope this clarifies your doubt, you can take help from the below mentioned link:-
https://university.careers360.com/articles/ba-bsc-bcom
Good Luck