Hi Neha

Yes , you can pursue MSc Microbiology after BSC Biotechnology. MSc Microbiology is a postgraduate course for duration of 2 years. It is the chemistry and biology for the investigation of the living systems and the relationship with the environment.

Only  college of Varanasi you can apply for MSc Microbiology :

Banaras Hindu University

It has its own entrance exam i.e. BHU Entrance Exam

For preparation of entrance you should be thorough with the knowledge of your 10+2 Physics , Chemistry and Biology and ofcourse your graduation course. You can refere tro the previous exam to learn more about the exam pattern and difficultyt level.

All the best!!

Hope it helps :)