| 1. |
Board of studies in Zoology (Chairman) |
- University of Kerala |
| 2. |
Board of studies in Endocrinology (M. Sc.) |
- University of Madras |
| 3. |
Society for Integrative and Comparative Biology |
- Life member |
| 4. |
Society of Reproductive Biology and Comparative Endocrinology |
- Life member,
Vice President
(1988-91, 1994- 97),
President (2003). |
| 5. |
Indian Society of Comparative Animal Physiologists |
- Life Member |
| 6. |
Indian Society of Chronobiology |
- Life Member |
| 7. |
Ethological Society of India |
- Life Member |
| 8. |
Zoological Society of India |
- Life Member |
| 9. |
Association for advancement of Entomology |
- Life member and Vice-President |
| 10. |
Indian Society of Life Sciences |
|
| 11. |
Kerala Academy of Sciences |
President 2003 -2005; 2008 - |
| 12. |
Association of British Scholars |
President 2004-2007; 2007- till date |
| 13. |
Society for Translational Cancer Research |
- Secretary |
