B.Sc Zoology

Dear, you can go for Master's in botany, zoology, chemistry, biotechnology, microbiology, Bioinformatics. Good luck.

You should consult with admission authorities of your institute whether you can get lateral entry. Having a good academic record will also help to secure admission. You should block a seat in the college you want to study before giving up your seat in your current college. Institutes normally allow lateral transfers under special circumstances like medical issues, shifting base from one place to another, etc.

Please refer to the link provided below for details regarding a course in B.Sc. zoology from JDWC. You can also download their brochure which contains details regarding admissions in JDWC, course eligibility, application process, etc.
https://www.shiksha.com/science/course/b-sc-hons-in-zoology-j-d-women-s-college-jdwc-patna-184826

Apply for as many jobs as you can, appear for as many interviews you deem necessary to acquire a suitable job. There are many options available for you online. Create a profile on job websites like naukri.com and apply for jobs which suit your profile. Good Luck!!

Some of the best colleges in India for this course are:-
1. Acharya N.G Ranga Agricultural University
2. Andhra University
3. LPU
4. Manav Rachna International University.

It will depend on the score that you have achieved in MAT and on the list of colleges that recognise MAT score as a criteria for admissions into MBA.
It is always advisable to identify the top 10 MBA institutes and target them for seeking admissions
A lot of good MBA institutes also have their own open tests, you can even check on it and appear for the said tests as well.

Please refer to the link provided below for a list of colleges which offer courses in M.Sc in Food and Nutrition. You should be able to navigate to a college of your choice using the filters provided on the web page.
https://www.shiksha.com/science/colleges/m-sc-food-nutrition-colleges-india