Working as a scientist in the field of Satellite Meteorology at Space Applications Centre, Indian Space Research Organisation (ISRO) since 1995. Major contributions in the development of operational algorithms for retrieval of various geophysical parameters from Indian as well as international satellite missions, such as (1) atmospheric profiles from Multispectral (INSAT-3D/3DR) and Hyperspectral Sounders (AIRS), (2) Upper Tropospheric Humidity (Kalpana, INSAT-3D/3DR), (3) Outgoing Longwave Radiation (Kalpana, INSAT-3D/3DR), (4) Ocean Surface Shortwave Radiation (Kalpana, INSAT-3D/3DR), (5) Sea Surface Temperature (INSAT-3D/3DR), (6) Clear Sky Radiances (INSAT-3D/3DR) (7) soil moisture from microwave radiometer (MSMR, TMI) Visiting scientist at University of Wisconsin for hyperspectral sounding during 2005-06. Presently leading various projects for retrieval, applications and sensor definition studies for Indian meteorological satellites. Member of - (1) GSICS Research Working Group, (2) GHRSST-Science Team and CEOS-SST-VC, representing ISRO. Awards: (1) ISRO-ASI Award for 2015, (2) P. R. Pisharoty Memorial Award by ISRS for 2012, (3) J. Das Gupta award by IMS for 2011-12, (4) ISRO Team Excellence awards for 2008 and 2013