Dear Student,

No, there is no option like this. IISER takes admission for PhD through GATE or JEST Examination. And also IISER only takes BS-MS for astrophysics on the basis of JEE Advanced, KVPY, SCB only.

If you want to study MS Astrophysics then you can checkout for Indian Institute for Astrophysics.

IISER Only gives the opportunity of direct admission to those students who have completed BS-MS from their institute.

Thank You.