Astrophysics courses in tamilnadu

There is only one college in Tamil Nadu for MSc.
Astrophysics.
It is Mother Theresa Women's University
Kodaikanal.
It is the only college offering MSc. in astrophysics.
The college is only for women.

Basic Science :- You might go for a BSc. or BS-MS in Physics and then complete your Ph.D. in Astrophysics.
IISc
IISERs and IITs like IIT Kanpur are really good institutes for a degree in Physics.
Here at IISER Mohali
You can have Astrophysics related courses as electives from the second year.

There is only one college in Tamil Nadu for MSc

It is Mother Theresa Women's University, Kodaikanal

It is the only college offering MSc

The college is only for women