Have been working in water and environment related issues in South India for over 20 years. Have carried out many research projects in several river basins with particular reference to surface and groundwater management, problems of water market, water rights and water laws, implications of rural –urban, and urban and peri-urban water markets, competing demand for water and water pollution and the issue of water governance, groundwater and electricity nexus. In recent times, I have worked extensively on issues relating to water conflict and conflict resolution through multi-stakeholders dialogues with practical interventions in three river basins in Tamil Nadu. I have also completed studies pertaining to solid and bio-medical waste and on urban sewage management. The research project on climate change and adaptation in South Asia was carried out in collaboration with five other institutions in India and Nepal. At the moment I am engaged in a two-year research project on Sustaining Ecology and Environment of Chennai funded by the Department of Science and Technology, Government of India.