1. Protozoology, Zoological Survey of India, Kolkata, West Bengal, India
2. Department of Zoology, University of Calcutta, Kolkata, West Bengal, India
3. Department of Marine Biology, Microbiology and Biochemistry, Cochin University of Science and Technology, Ernakulam, Kerala, India
4. Department of Zoology, Mary Matha Arts & Science College, Mananthavady, Kerala