There are many options you can opt, It depends on your interest & Career goal. After completing M.Sc Physics if you are interested in Research / Teaching profession then you can go for UGC NET to become an Assistant professor, You can also go for further PhD prgramme which will enhance your opportunities.

If you are looking the employment after completing the programme. There are many opportunities available, you can work as Observations scientist, Quality control Manager, Laboratory technician, School Science Technician or Research Analyst in any government or private institutions.

If you share your field of interest then I can help you better about.

Good Luck!