B.Sc

Students who have passed Class 12 or equivalent examination from any recognised board are eligible to apply.
Admission-Based on Cut Offs
It lies between 55 to 70% for SC/ST/OBC candidates
so you can apply for the same
All the best.

You can apply. Also, you can check out the reliable information from the below-given link:
https://www.shiksha.com/science/course/b-sc-hons-in-mathematics-shivaji-college-raja-garden-delhi-53610
Number of seats for general category for the course is 97, Last year, the cutoff for the same is 92% in best four aggregate, so you may apply for the course but it depends on this year (2018) cutoff.
all the best
all the best

Top 10 B.Sc. Colleges in India are mentioned at the link provided below. Towards the end, we have also listed the top 50 B.Sc/ M.Sc. Colleges in India as mentioned in India Today rankings. Regards. https://www.shiksha.com/science/articles/top-10-bsc-msc-colleges-in-india-blogId-13473
Note: This list contains both public and private colleges.

B.Sc. in Anesthesia and Operations Theatre Technology is anytime better as is it giving you more scope after the completion of the course.

The cut off for KC college is 79.8%.

Can you please tell me the college you wish to take admission in so that I can guide you better and a bit specifically?

A pass in the two-year Intermediate Examination of A. P. or +2 Examination recognised as equivalent thereto and with an aggregate of 40% marks (pass percentage for SC &ST candidates) in the concerned Science subjects viz Physical Sciences and Mathematics group or Physical Sciences & Biological Sciences, as the case may be.