M.Sc Microbiology

Hello,
You can definitely apply for the UGC NET, if you have completed the Masters programme with at-least 55% marks. The candidate from the reserved CAT must have at-least 50% marks. There is no age limit for the lectureship, but to apply for the JRF Fellowship, the age limit is 30 years. (35 years for the candidates from the Reserved and Female candidates CAT.)

Eligibility for M.Sc Microbiology is B.Sc in Zoology, Botony, Chemistry, Physiology, and Microbiology with 55% marks.
Top colleges and universities offering this course are:
Chaudhary Charan Singh University-Meerut
Institute of Management and Technical Studies -Noida
Manipal Academy of Higher Education-Manipal
PGIMER-Chandigarh
SGT University-Gurgaon

Mahatma Gandhi University, [MGU] Kottayam
Kannur University, [KU] Kannur
Amrita Vishwa Vidyapeetham Amritapuri Campus, [AVVAC] Kollam
Sir Syed Institute for Technical Studies, [SSITS] Kannur
Calicut University, Calicut.

Since college details are not furnished, exact fee structured cannot be described. Please provide the same so that I may be able to populate relevant information. In general, the average total fee of this course ranges between INR 2 Lacs INR 3 Lacs.

Yes, you can indeed. It is a good option.
Infact, go for food bio technology.
This may help your interests and channelize your future research.
Best wishes.

Sorry, could not find any free online source. This might help you: http://www.thealigarian.com/amu-previous-year-question-papers-pdf/.