hi,

see if you are interested to do bsc in microbiology then you ned to separately apply for colleges , some of the colleges has their own entrance test and some colleges have admission criteria based on 12th score,

I have mentioned some institute name which offers bsc in microbiology,

MADRAS CHRISTIAN COLLEGE - [MCC], CHENNAI

ETHIRAJ COLLEGE FOR WOMEN, CHENNAI

VELS INSTITUTE OF SCIENCE, TECHNOLOGY & ADVANCED STUDIES, CHENNAI

RVS COLLEGE OF ARTS AND SCIENCE - [RVSCAS], COIMBATORE

SRI RAMACHANDRA INSTITUTE OF HIGHER EDUCATION AND RESEARCH, CHENNAI