Professor Umesh Chandra Chaube obtained his B.Tech degree (1969) and M.Tech (1971) in Civil Engineering from Indian Institute of Technology Kanpur and Doctoral degree (Water Resources) from Indian Institute of Technology Delhi (1982). He served the Central Water Commission, Government of India as an Assistant Director and Deputy Director from 1971 - 1983. He joined the Department of Water Resources Development and Management (WRD&M) at the Indian Institute of Technology Roorkee as Reader in 1983 and elevated to position of Professor in 1994 continuing up till 2013. He was then awarded Emeritus Fellowship for three years from 2013 to 2016 at IIT Roorkee. He chaired the Dept. of WRD&M, IIT Roorkee from 2003-24. He specializes in the fields of hydro-environmental impact assessment and management, urban hydrology, industrial water audit, watershed management, and so on having more than 65 industrial consultancy projects in India and abroad. He has published about 140 technical articles in various international/national journals/seminars/conferences/ symposia. Professor S.K. Mishra is a Civil Engineering graduate (1984) of the present MNNIT, Prayagraj. He obtained his M.Tech degree in Hydraulics and Water Resources from IIT Kanpur in 1986; and the doctoral degree from the present IIT Roorkee in 1999. He served the NIH, Roorkee at various scientific positions during 1987 - 2004. He visited Louisiana State University, as a post-doctoral fellow during 2000-01 and the Dept. of Civil Engineering, IIT Bombay as a Visiting Faculty member during 2002-03. He joined IIT Roorkee as an Assistant Professor in 2004, elevated to Associate Professor in 2008, and then Professor in 2014. He chaired the Dept. of WRD&M of IIT Roorkee from 2016-19. He specializes in the fields of hydraulics and water resources, environmental engineering, design of irrigation and drainage works, dam break analysis, surface water hydrology, water audit, CAT and Watershed Development Planning, Project Management and so on. He has published about 500 technical articles in various international/national journals/seminars/conferences/ symposia. Professor Vijay P. Singh is a Distinguished Professor, a Regents Professor, and the inaugural holder of the Caroline and William N. Lehrer Distinguished Chair in Water Engineering at Texas A&M University. He received his B.Sc & Tech., M.S., Ph.D. and D.Sc. degrees, all in engineering. He is a registered professional engineer, a registered professional hydrologist, a Board-Certified Water Resources Engineer (ASCE-AAWRE), and an Honorary Diplomate of European Water Resources Association. He is a member of National Academy of Engineering (NAE), a member of Canadian Academy of Engineering, an Academician of Georgia Fazisi Academy, a member of European Academy of Sciences and Arts, and a fellow/member of 11 other international science/engineering academies. He is a Distinguished Member of ASCE, an Honorary Distinguished Member of IWRA, a Distinguished Fellow of AGGS, and an Honorary Member of AWRA, and a Fellow of AGU, IAHR, EWRI, ASCE, IAH, ISAE, IWRS, and IASWC. He has published extensively in the areas of hydrology, irrigation engineering, hydraulics, groundwater, water quality, food-water-energy-environment nexus, water resources, entropy theory, copula theory, and climate change impacts with more than 1680 refereed journal articles; 41 books; 102 edited reference books, 134 book chapters; and 330 conference papers. His Google Scholar citations are more than 133,095; h-index of 150; and I10-index of 1547. He has received four honorary doctorates and more than 122 national and international awards. He has served as President of the American Institute of Hydrology (AIH); President of American Academy of Water Resources Engineers; President of International Association for Water, Environment, Energy, and Society; President of International Society for Smart Construction and Production; and Chair of Watershed Council of American Society of Civil Engineers. He has served as editor-in-chief of five journals and two book series and has served/serves on editorial boards of more than 40 journals and three book series. He has given more than 210 keynote lectures and 300 invited seminars all over the world, and has organized more than 27 international conferences. Research.Com has ranked Professor Singh number 2 in hydrology in the world and number 13 among all earth scientists in the world; whereas Scholar GPS has ranked him number 1 in hydrology, number 1 in drought, and number 4 in water resources in the world.