Participated in the eclipse expedition to Easter Island, Chile. Performed multi-slit spectroscopy of the corona during total solar eclipse, 11th July, 2010
Participated in the eclipse expedition to China (From Anji, China). Performed spectroscopic and imaging experiments during total solar eclipse, 22nd July,2009
Participated in the eclipse expedition in the Irish sea (from the Irish ferry) to photograph the solar corona during total solar eclipse, 11th August,1999.
Participated in an Air-borne Experiment (from Indian Air force air-craft) to photograph the solar corona during total solar eclipse, 24th October,1995.