Hello aryanunni098

I hope you are doing good

I would glad to tell you that their are many top universities which provides BSc in astrophysics. Some of them are here in the following:-

1. Tata institute of fundamental research, Mumbai

2. Osmania university hyderabad

3. Indian insittute of technology mumbai

4. Andhra university vishakapatnam

5.  RAMAN RESEARCH INSTITUTE.

6. IIT Kharagpur

Hope you found this answer helpful. Good luck for your future