Hello, 

Here is the of the some Colleges which offers M.sc zoology in Tamil Nadu;

1. A. Veeriya Vandayar Memorial Sri Pushpam College (Autonomous), Thanjavur, Tamil Nadu.

2. ditanar College of Arts and Science, Thoothukudi, Tamil Nadu.

3. ADM College for Women (Autonomous), Nagapattinam, Tamil Nadu.

4. Alagappa Government Arts College, Sivaganga, Tamil Nadu.

5. Alagappa Institute of Technology - AIT, Chennai, Tamil Nadu.

6. Annamalai University, Cuddalore, Tamil Nadu.

Hope this will help you. Best of luck.