Zoology

Yes, you can. Infact there are a lot more fields in M.Sc for which you can go ahead.

Please refer to the link provided below for details on getting admission in M.Sc. in zoology in Loyola college, Chennai:
https://www.shiksha.com/science/course/m-sc-in-zoology-loyola-college-lc-chennai-nungambakkam-109006

Hello Megha,
The following are the top m. Sc zoology colleges in India:
1)Loyola College, chennai
2)Presidency College, chennai
3)Madras Christian College, Chennai
4)St. Joseph's College (Autonomous), Bangalore
5)Asutosh College, kolkata
6)Sri Venkateswara College, delhi
7)Hans Raj College, University Of Delhi
8)Hindu College
9)Ramjas College(University Of Delhi)
10)Miranda House (University Of Delhi)
You may also refer :
https://www.shiksha.com/science/articles/top-10-bsc-msc-colleges-in-india-blogId-13473

Hi,
Please refer to the link mentioned below for student and alumni reviews for PSG college of arts and Science. You will also be able to download brochures provided by the college for details on course requirements, college infrastructure, fees etc.
https://www.shiksha.com/science/course/b-sc-in-zoology-psg-college-of-arts-and-science-psgcas-coimbatore-261557

No, it's not. The subject in which admission is sought must be an Honours subject. In B.Sc (Hons) a subject is studied in all the three years at graduate level.

You must have Chemistry as one of the subjects at the UG level and Zoology must be your Honours subject. At B.Sc. (Hons) level, a subject is studied in all the three years in UG.