is an University gold medalist in both B.Sc and M.Sc Geology. He obtained his Ph.D. in Applied geology from Annamalai University in the field of hydrogeochemistry.� Currently working as Reader in the Department of Earth Sciences, Annamalai University. He is an expert in the field of Hydrogeochemistry, hydrogeochemical modeling and application of stable isotope techniques in groundwater. He has developed a computer program ';WATCLAST' in C++ for the classification and thermodynamic studies of water during 2003. He has completed few projects� and running several project funded by various government organizations in India like, UGC,DST, BRNS, MoEn&F and AERB. He has developed collaborations with CWRDM Kozhikode, JNU New Delhi, BARC Mumbai, IGCAR Kalpakkam and also an international collaboration with Russian Academy of Sciences. He published research papers in several national and international journals and edited 3 books in the field of groundwater chemistry.