Dr. Achyut Tiwari is an assistant professor at the Central Department of Botany, Tribhuvan University. He holds a M.Sc. degree in botany (2003) from the Central Department of Botany, Tribhuvan University, Nepal, and a Ph.D. in plant ecology from the University of Chinese Academy of Sciences (Xishuangbanna Tropical Botanical Garden) . He has been recently involved in research projects on high-altitude plants and their range shifting.