Hi Syam,

First of all, you have a very good score in your 12th, well done.
Secondly, I would like to inform you that in India the minimum eligibility criteria for BACHELORS or UNDERGRADUATE course in MICROBIOLOGY is 10+2 with PHYSICS, CHEMISTRY & BIOLOGY /ZOOLOGY / BOTANY as your subjects 10+2 & you should have an aggregate score of 60% .
And for the research part you have to enroll yourself into any PhD program at any university after completing your masters degree as well , for PhD you can take up exams like UGC NET, RET, GATE etc.

I hope this helps!!!