You can do Msc in Physics, Chemistry, Maths, Forensic science etc. The best universities  are: Delhi University, Delhi

Jamia Millia Islamia,

JwaharLal Nehru University,

Lovely Professional University Jalandhar 

University of Pune,

Dr.Bhim Rao Ambedkar University, Agra

Banaras Hindu University

Anna University

Christ University,

Savitribai Phule University

The Maharaj Sayaji Rao University,Jadavpur University, 

University of Hydrabad,

Hello Kiranmayi,

You are eligible for MSc. in Physics/Chemistry/Mathematics. You can pursue M.Sc. in any of these three subjects. Apart from this, You can also pursue M.Sc. in Genetics/Environment Science/ Nano Technology. Although Eligibility Criteria may vary as per University. 

It will be more beneficial if you pursue M.Sc. in which you have interest.

IIT JAM, BHU PET, JNU EEE are few exam through which you can take admission in top Indian Institute.

Good Luck.