Ex- Chief Scientist & Project Adviser,
Ecology & Environment Group,
CSIR-National Geophysical Research Institute
Indian Geophysical Union, Hyderabad
Indian Association of Hydrologists, Roorkee
International Association of Hydrogeologists, UK
Working Group of National Institute of Hydrology, Roorkee
Groundwater Flow Modeling.
Mass transport modelling.
Ecological restoration of lakes.
Aquifer modeling for assessment and management of groundwater resources including groundwater pollution.