Dr. Lakpa Tamang is an Assistant Professor at the Department of Geography, University of Calcutta, Kolkata, India. He received his Ph.D. degrees in Geography & Applied Geography from University of North Bengal which focused on the impacts of sediment mining on alluvial river of Darjeeling Himalayas. His research interests include applied fluvial geomorphology, Socio-ecological systems & geotourism. He has published more than 15 research papers in journals in Scopus indexed journals and also has been an active reviewer in many international journals.Dr. Suman Mitra is received his PhD degree in Geography from University of Calcutta which focused on the River health assessment of Mahananda river. He has published 10 research papers in the field of Geomorphology, Remote Sensing & GIS, Natural Hazards, etc in international journals with high impact factors.Dr. Sunil Kumar De is Professor at the Department of Geography, North East Hill University, Shillong, India and the President of the International Association of Geomorphologists (IAG) for the term 2022-2026. His major fields of interest are geomorphological hazards (especially landslide & soil erosion), fluvial dynamics, river health, and human impact on environment. His research outcome has been published in more than 73 research papers in different national and internationally reputed journals and book chapters. He has edited two books on Geomorphology and Environment and authored a book on River Health (Springer). He was the Editor of the journal ‘Hill Geographer. He has successfully supervised 15 Ph.D. and 6 M.Phil. Theses; six Ph.D. candidates are working under him at present. He has received Indian National (1987-89) and UNESCO (2002) Scholarships.