Science

Admission is through counselling based on the score obtained in Common Entrance Test (CUCET). Eligible candidates need to appear for Central Universities Common Entrance Test (CUCET). Please refer to the link provided below for eligibility and other details to pursue this course from Central University of Rajasthan.
https://www.shiksha.com/teaching-education/course/integrated-m-sc-b-ed-in-physics-central-univeristy-of-rajasthan-ajmer-268877

Yes, Hyderabad University has NEST quota, you can try for same.

DAVV CET does not include B.Sc. In CS. Please refer to the link provided below for a list of courses which a candidate can pursue via the DAVV CET. Regards. https://www.shiksha.com/university/devi-ahilya-vishwavidyalaya/exams/davv-cet.

Hello,
After completing 12 with PCB, you can do many course. B.A. M. S. MBBS veterinary Science, BDS Bachelor of dental surgery), Pharmacy, Pharma. D and many other Diploma.
All the best.

Your rank is good enough for getting the same college. You can try for the same.
Good luck.

For B.Sc, you can get a good college. You should first list your areas of a good college and then apply for B.Sc in them. You may get good college.
Good luck.