Hey Pranjal,

The eligibility criteria for M.Sc Marine Biology is that the candidate must have completed either of these under graduate courses-

1) B.Sc in Marine Biology

2) B.Sc in Zoology

3) B.Sc in Botany

4) B.Sc in Bio Chemistry

5) B.Sc in Microbiology

6) B.Sc in biotechnology

7) B.Sc in fisheries

So, you are eligible for your desired course.

Hope this helps.

All the best!