I completed my Agri BSc in 2017...now I want to do my masters in marine biology in India...can it possible

Yes you are eligible.

Eligibility criteria for Msc marine biology is Candidates must have completed a bachelor's degree in life sciences such as botany, aquaculture, marine biology, zoology, agriculture,biochemistry, microbiology and biotechnology . The minimum pass percentage must be 55-60% in bachelor's degree. Universities offering M.Sc./M. Phil./PhD conduct their entrance exam for admission.

Most marine biologist jobs require an undergraduate (Bachelor's) degree in (marine) biology or ecology, aquatic biology, animal science, zoology, botany or conservation biology. Many also accept degrees in a related field such as environmental science, natural resources management, geology or oceanography.

You can prefer the article given below 4 more details about the course, eligibility criteria,syllabus etc https://www.careers360.com/courses/marine-biology-course#:~:text=Candidates%20must%20have%20completed%20a,their%20entrance%20exam%20for%20admission.

Hello,

Anyone who does research on or deals with creatures that live in salt water is referred to be a marine biologist. Everything is included in it, from microscopic organisms and planktons to enormous whales. A UG degree in a relevant field is required to obtain an entry-level position in marine biology, and a BSc in agriculture might increase your chances of doing a Msc in marine biology . If you're interested, you can pursue a PhD in marine biology or any other field. Numerous overseas businesses, like Ecosulotions, Marine Research Ltd., EnviroMatrix Analytical, etc., employ marine biologists.

Thank You