hi,

see scholarship scheme is different for different colleges, you may apply for different scholarships which is provided by government of india and other reputed organization. for institutional scholarship  you need to apply from college official website,

I have listed down some college name which is best for pursue b,sc in astro physics,

1.Indian Institute of Science, Bangalore

2.Institute of Fundamental Research, Tamil Nadu

3.jntu College of Engineering, Hyderabad

4. Tata Institute of Fundamental Research, Pune.

5.Osmania University

6.Birla Institute of Technology & Sciences, Pilani

7.Institute of Fundamental Research, Tamil Nadu

8.Andhra University

9.Raman Research Institute, Bangalore

10.Birla Institute of Technology & Sciences, Pilani

11.Inter-University Centre for Astronomy and Astrophysics, Pune

12.Indian Institute of Astrophysics, Bangalore.