Raj P. Chhabra has been a Professor of Chemical Engineering at the Indian Institutes of Technology in Kanpur and in Ropar during 1984 -2022. After receiving his B.S., M.S. and Ph D (all in Chemical Engineering) from the erstwhile University of Roorkee, the Indian Institute of Science, Bangalore and Monash University, Melbourne respectively. Currently, he is a distinguished Professor of Chemical Engineering at Shiv Nadar Institution of Eminence, Delhi NCR, India. His current teaching and research interests are in the general areas of non-Newtonian fluid mechanics, multiphase flows, and research methods and skills. He has 10 books, 35 invited book chapters and reviews, and over 400 technical papers in peer reviewed journals to his credit. He is an elected Fellow of the Indian National Academy of Engineering and of the Indian National Science Academy.