Asso. Prof. Paudel has been working as Associate Professor of Civil and Environmental Engineering, in Tribhuvan University. He was working as Asst. Campus Chief (Academic), Pulchowk Campus, Institute of Engineering, Nepal. He had successfully completed 3 years research in the area of Aquatic System in collaboration with 3 different Universities: Columbia University, New York, University of Hawaii, USA, and Korea University (Host University), South Korea, and also 2 years collaborative research with a Senior Scientist, Prof. Dr. Friedmann Freund, NASA, USA. He has been working as a member of Editorial Advisory Board in the International Journal, Renewable Energy Focus, Elsevier [Member, Editorial Advisory Board]. He has served as a Guest Editor for the Special Issue in the journal, ACS ES&T Water with the Editors-In-Chief, Prof. Shane Snyder, and in the journal, Renewable Energy Focus, Elsevier, [VSI-1, VSI-2] respectively. He has been working as Reviewer for several International Journals; ACS, ES&T Water, Renewable Energy Focus (REF) Bioresource Technology (SCI), Sustainability Science (SCIE), Clean Technologies and Environmental Policy (SCIE) etc, and IWA World Water Conference Papers, to be held in different countries. He have published 21 articles (Review and Research) as first author, coauthor and corresponding author through Scopus Indexed to high quality journals (SCI, SCIE, EI) [Google Scholar] since 2010, and 9 articles were published in domestic journals including international proceedings. He has been invited as Keynote Speaker and Invited Speaker from several international conference/congress. He has presented his research papers in several national and international conferences and congress. He is actively involved in teaching and research works in environmental engineering subjects/field in the campus.