1. Integrated river basin/ watershed studies
2. Hydrology of wetlands, lakes and tanks
3. Hydrologic extremes and climate change
4. Forest and urban hydrology
5. Hydrogeology of semi-arid zones
6. Water quality monitoring and treatment
7. Soil and water conservation techniques
8. Water harvesting and recharge techniques
9. Water economics
10. Studies on water policy and law
11. Mathematical modelling, systems approach, DSS
12. Application of emerging tools: RS, GIS, isotopes
13. Developing gadgets, instruments and techniques for water research and management

Research Projects

1. Decision support system for the management of coastal wetlands – case study of Point Calimere in Tamil Nadu (DST)
2. Application of isotopes to understand the recharge due to the tanks of semi-arid zones of Tamil Nadu (DST)
3. Developing water treatment techniques using electrodialysis and coagulation (in collaboration with Prof. Yoram Oren from Israel)
4. Evolving a model for natural resources management in the tribal areas of western ghats (communicated to DST)