Mihir Kumar Purkait is a professor in the Department of Chemical Engineering, and Dean of Alumni and External Affairs at the Indian Institute of Technology Guwahati, India. His research activities are focused on four distinct areas: advanced separation technologies, waste-to-energy, smart materials, and electrocoagulation. Dr. Dibyajyoti Haldar is an Assistant Professor in the Department of Biotechnology at Karunya Institute of Technology and Sciences (Deemed to be University), Coimbatore, India. He is a former Post-Doctoral Fellow at the Centre for the Environment, Indian Institute of Technology Guwahati (IITG), India. He obtained his Ph.D in Chemical Engineering from the National Institute of Technology Agartala (NITA), India, and his M.Tech in Environmental Science and Technology from the National Institute of Technology Durgapur (NITDGP), India. His research work includes conversion of lignocellulosic biomass into fermentable sugars, enzymatic hydrolysis, biofuels, formation of value-added products derived from agricultural wastes and processes kinetics and modelling. He has published more than 20 scientific research and review papers in various reputed International journals. He is the author of several book chapters and two books (ISBN: 9780128188019 and ISBN: 9780128235348) published in Elsevier. Dr. Haldar is the Review Editor for Frontiers in Chemistry journal (SCI indexed) in the Green and Sustainable Chemistry Section. He is the recipient of Most Cited Review Paper Award for his review article “A review on the production of fermentable sugars from lignocellulosic biomass through conventional and enzymatic route–A comparison” published & downloaded for the period 2016-2020 in International Journal of Green Energy organized by 13th International Green Energy Conference on 18th July, 2021 in Beijing, China. He also received International Teaching Excellence Award in Biochemical Engineering in Global Annual Education & Research Excellence Awards 2021 by Centre for Professional Advancement (CPACE, AP) on 18th December 2021. During his Ph.D., he received the Best Oral Presentation Award in a one-day workshop on ''Current Trends in Scientific Research" at Research Scholars' Day 2018 organized by the National Institute of Technology Agartala, India. He is a potential reviewer of various SCI-indexed International journals. He attended several conferences of National and International repute. Prangan Duarah is a doctoral research fellow at the Centre for the Environment in the Indian Institute of Technology, Guwahati. He worked on a research project at the Indian Institute of Technology, Bombay, before joining IIT Guwahati as a research fellow. He graduated from North-Eastern Hill University in Shillong, India, with a B.Tech in Energy Engineering. His current field of studies focuses on naturally-derived pharmaceutical compounds and green nanomaterial synthesis for various applications. He is a recipient of the prestigious Prime Minister's Research Fellowship (PMRF), which is given to the country's most outstanding research scholars as a token of encouragement to pursue their research. He has published more than five journal papers and several book chapters in peer-reviewed international publications.