Plenary lecture, International Ethological Congress, Oxford 1981
Presidential address, Marathi Vidnyan Parishat, 1984
Rajendra Prasad Memorial Lecture, Indian Society of Agricultural
Aghankar Memorial Lecture, Maharashtra, Association for
Cultivation of Science, Pune 1988
Foundation Day Lecture, Society for Promotion of Wastelands
Development,, New Delhi 1989
Alumini Day lecture, Indian Institute of Technology, Bombay 1990
Vikram Sarabhai Lecture, ICSSR, 1991
Deusker Memorial Lecture, Centre for Social Sciences
Plenary Lecture, International Congress of Behavioural Ecology,
Suresh Chandra Memorial Lecture, Indian Institute of Technology,
Congress on Traditional Sciences and Technologies of India
keynote lecture entitled "Folk traditions in the management of
biological resources", Institute of Technology, Bombay, 28 Nov -
3 Dec 1993.
Dr. P.C. Mahalnobis centenary lecture entitled "Peopling of
India", Indian Statistical Institute, Calcutta, 8th December 1993
Indian History Congress lecture entitled "Peopling of
India", 54th Session thematic symposium "Man and Environment in
Indian History", December 1993.
Evening Lecture entitled : Ecology for the People" at the Annual
Meeting of All India Peoples' Science Movements Network,
Hyderabad, Feb. 23, 1994.
Sri D.B. Narasimha Murthy Rao Endowment Lecture entitled
"Conserving Nature as if People Matter", Indian Institute of
World Culture, Bangalore, June 4 1994.
Lecture entitled "Biodiversity : Chance or Necessity" for Indian
Academy of Sciences mid-year meeting, August 1, 1994 at Mysore.
Salim Ali Memorial Lecture entitled " Birds, Bikes and
Aeroplanes" at Salim Ali Centre for Ornithology and Natural
History, Coimbatore, November 12, 1994.
Persidential address, 65th Annual Session of The National Academy
of Sciences, India, entitled "Conserving wild relatives of
cultivated plants", Tirupati, November 3-5, 1995
R.R. Kale Memorial Lecture entitled "Patenting Life", Gokhale
Institute of Politics and Economics, Pune, November 25, 1995.
Golden Jubilee Lecture Series 1945-1995, Sri Jagadguru
Renukacharya Education Society, entitled "Patenting Life",
Bangalore, December 9, 1995.
Dr. T.N. Ananthakrishnan Seventieth Birthday Felicitation Lecture
entitled "Exploring the Diversity of Life", Madras, December 30,
Address at a seminar on Conservaiton of Indigenous Breeds of
Livestock, organized by Bangalore Society for the Prevention of
Cruelty to Animals and the Livestock Heritage Trust of India, 28