Professor L. Elango is a specialist in the field of hydrogeological characterisation, hydrochemical studies, hydrogeophysics and groundwater modelling. He had professional training in Danish Hydraulic Institute, Swiss Federal Institute of Technology, University of Newcastle, University of Bath, University of Birmingham and Ruhr University. He has carried out sponsored research projects on various aspects of hydrogeology, including the ones funded by the British Geological Survey, Australian Research Council, Russian Academy of Sciences and the European Commission. He has published about 50 research papers in various journals and four books. He is a Vice President of International Commission on Water Quality of IAHS. He has organised many training programmes, workshops and conferences in the field of hydrogeology, including capacity building programmes under The World Bank funded Hydrology Project and UNESCO’s International Hydrology Programme. He is in the editorial board of a few international journals. He has supervised ten PhD studies since the year 1994.