Dr. Chandan Singh Purohit obtained his M. Sc. Degree in Botany from MDS University, Ajmer in 2002 and M.Phil. degree for his work on “Taxonomic description and Nutritional value of some desert plants of Bikaner District of Rajasthan” from Maharaja Ganga Singh University, Bikaner in 2004 and his Ph.D. degree for his work on “Study of the Grasses of North-west Rajasthan” in 2009 from Maharaja Ganga Singh University, Bikaner. He has expertise in identification of Poaceae, conservation and population status study of RET & Endemic plants of Rajasthan. Presently he is working at Botanical Survey of India (BSI), Sikkim Himalayan Regional Centre, Gangtok, Sikkim and involved in study of Flora of Singhba Rhododendron Sanctuary and Phenology of Endangered, Endemic and threatened plants of Sikkim. He has done extensive field work in Indian desert and most part of Rajasthan for exploration, population studies and conservation status of Poaceae and other RET & Endemic plants. His acute sense of observations related to taxonomy, nomenclature, distribution, phyto-geography and conservation status in respect of above plants brought out results that were published in various journals. He has published one Book entitled ‘Grasses of North-west Rajasthan’. He has so far published 33 research papers, 3 extension folders, 1 book chapter, 12 research articles and 9 technical reports.