No, there's no entrance test for M.Sc in Food Science, if you have studied any one of the following subjects in your graduation:

Chemistry

Biochemistry

Botany

Zoology

Microbiology

Biotechnology

Home Science

Agriculture

Food Science and Nutrition

Food Technology

For the second part of your question, please tell me more about which college are you exactly talking about here. Also, you may call directly at the respective college for any help. You can find admission helpline no.on the college's official site.

Hope this answer helps.