Hello there,

It basically depends on the university you are planning to study in. The admissions in M.Sc in Microbiology can be on the merit basis or entrance exam. There are no national level entrance exam for this particular test. Every university has its own entrance test which is most likely to be written or computer based test,

In your questions, it is not clear which university you are indicating to. If you could tell the name of the university, I'll be providing all the vital information on the exam pattern.

Hope you'll do good.