Most of the good colleges for M.Sc in Zoology in Odisha has the entrance exam. Here are some of the colleges you can prefer:

Berhampur University, Berhampur

North Orissa University

Utkal University, Bhubaneshwar

If you wish to take the admission in any particular college then let me know accordingly I can help you about the procedure above given colleges admission is based on entrance test only.

Good Luck!