Manish Naja is a senior scientist and vice-chair of Solar Physics and Atmospheric Science group at ARIES, Nainital. He pursued his doctoral research work at PRL, Ahmedabad and has worked as a postdoctoral scientist at FRCGC, JAMSTEC, Yokohama and NIES, Tsukuba, before joining ARIES. His major research interest has been in the observations of the trace gases using surface based, ship-borne and balloon-borne instruments. He has been involved in INDOEX (Indian Ocean Experiment), GOSAT (Greenhouse Gases Observing SATellite), GVAX (Ganges Valley Aerosol Experiment) programs.