Dakshina Fellow Bombay University 1963-65 IBM Fellow Harvard Computing Centre 1968-69 National Environmental Fellow 1979-81 'Padma Shri' awarded by the President of India 1981 Karnataka State Rajyotsava Award 1983 Rathindranath Tagore Award from Vishwa Bharathi 1985 Shanti Swarup Bhatnagar Award for Biological Sciences 1986 Swami Pranavananda Saraswathi Award of Hari Om Ashram Trust for 1989 Vikram Sarabhai Award of the Indian Council of Social Science Research 1990 PEW Scholars Award in Conservation and the Environment 1993 Rustum Choksi award for Excellence in Science by the IISc 1997 Pandit Iswarchandra Vidyasagar Gold Plaque and Lecturership by the Asiatic Society, Calcutta 1998.