B.Sc Biology

You should pursue M.Sc in biology. It would be the best option for you.
Good luck.

Dear,
After B.Sc in biology, life science or zoology (Hons.), you need to choose specialisation in Masters for further growth.
Microbiology
Stem cell research
Horticulture
Genetic Science
Nano Science
Wildlife Science
Environment Science
Clinical psychology
Choose the right way for your further education and growth.
All the best!

You should opt for Masters in biology.

You can try in food sector as per the eligibility criteria.

Why do you want to change from plant biological process specialist to plant biotechnology and bit and bobs of microbial interaction of the same? I am not saying it is a wrong option but as per my suggestion you should opt for more specific subject within plant biotechnology field.

If you have any energy background than you are or else only engineers are eligible.