M.Sc Physics

After completing M.Sc. in Physics you may refer to the link below and then you may apply for the job which suits your eligibility:
http://www.isro.gov.in/careers

Dear Aditya,
You can shortlist a few universities as per your profile, which includes academic grades, test scores, research work and extra curricula and check the university requirements. It is pretty much like a job search.
Meeting admission requirement is crucial and to be taken seriously. To pursue MS in USA, you must take GRE and any reputed university will require a brilliant profile. I will suggest you to start off by visiting university websites and go through the department page for detailed information.

Hi,
There are numerous fields related to physics like astrophysics, nuclear physics, heliophysics, geophysics, etc. You can choose any of the above-mentioned courses after completing your Masters.