If you want to go for an MSc in Microbiology in Vellore Institute of Technology Vellore campus, then the total number of seats in this course is about 120, which also keeps on increasing nominally on an year-over-year basis. However studying MSc Microbiology is a good decision because of it's research value and a good tag like VIT Vellore.

You can also use our college predictor to see your chances in all the colleges:
https://engineering.careers360.com/jee-main-college-predictor?icn=QnA&ici=qna_answer

Hope I have answered your question. All the best!