Ecology
PhD on Bird community of Andaman Islands with emphasis in Human associated and introduced birds. Undertaken many research projects which include disease ecology in Northeast India, Wildlife monitoring in Munnar landscape, Bird migration project in Chilika (Odisha); Preparation of management plan for the Fudam Bird Sanctuary (Diu), eco-sensitive plan for four national Park and one sanctuary in Munnar wildlife Division, Eco-development Plan for Mahatma Gandhi Marine national park and Mount Harriet