Science

Vinit, Microbiology is the study of microorganisms, which are unicellular or cell-cluster microscopic organisms. In short; microbiology refers to the study of life and organisms that are too small to be seen with the naked eye. It is a broad term which includes virology, mycology, parasitology, bacteriology and other branches.
Biotechnology is technology based on biology, especially when used in agriculture, food Science, and medicine. It combines disciplines like genetics, molecular biology, biochemistry, embryology and cell biology, which are in turn linked to practical disciplines like chemical engineering, information technology, and biorobotics. Patho-biotechnology describes the exploitation of pathogens or pathogen derived compounds for beneficial effect.
If you are interested in research work than Microbiology will be the best for you. Otherwise both the branches are equally good.
Now institution plays an import role. There are many good universities that are offering these courses along with good placements.
Check some websites for more details.
Good luck.

Hi,
It is a good thing that you have completed B.Sc now it is the time to build up your career.
There are following options available in front you after B.Sc
1. Private job
2. Govt Job
3. Further Studies
The best option from the following option is further studies because now-a-days a Masters' students will get priority over the Bachelors' student. Now the question arises what is the right choice for Masters?
The right choice for Masters is M.Sc But from a well authorized university or to be more clear, do M.Sc From IIT or IISC.
For doing M.Sc From IIT or IISC, you have to pass through the IIT-JAM Entrance Exam. This Exam is conducted every year in February.
Get all the details about IIT JAM Exam here
https://www.eduncle.com/iit-jam-exam
Download IIT JAM question papers & get the idea of JAM Exam
https://scoop.eduncle.com/iit-jam-exam-solved-question-papers-free-download
Hope it will help you & you will take the right decision.