The Centre of Excellence in Space Science India under IISER KOLKATA offers MS Program in Astrophysics through a Valid JEST or Gate SCORE followed by an interview.

For CESSI visit:

http://www.cessi.in/

To know more about the coursework visit the link below:

https://apply.iiserkol.ac.in/mss/

I hope this answer helps. All the very best for your future endeavors!