Professor Biswas is the Chairman of the Department of Energy, Environmental & Chemical Engineering at Washington University in St. Louis. He has 300+ refereed journal publications, has presented several invited presentations nationally and internationally and holds six patents. He has advised and graduated 50 doctoral students, all of who are accomplished with successful careers in academia, government and industry. He has won several Teaching and Research Awards including the 2013 David Sinclair Award given for outstanding contributions by an established scientist by the American Association for Aerosol Research; the Distinguished Faculty Award by Washington University in 2012; the Distinguished Alumni Award by the Indian Institute of Technology Bombay in 2011, the 1991Kenneth Whitby Award given for outstanding contributions by the American Association for Aerosol Research and the Neil Wandmacher Teaching Award of the College of Engineering in 1994. He was elected as a Fellow of the Academy of Science, St. Louis in 2003 and a Fellow of the American Association for Aerosol Research in 2009. In 2014, he was selected as a Fellow of the International Aerosol Research Assembly.

Professor Biswas has played a leading role at the National and International arena in the field of Aerosol Science and Technology by serving on several National Committees. He was the Conference Chair for the 15th Annual Meeting of the American Association for Aerosol Research, Chair of the Critical Review Committee of the Air and Waste Management Association, an Associate Editor of the Aerosol Science and Technology Journal, and the Technical Program Chair of the 7th International Aerosol Conference in 2006; and served on the Board of Directors of the American Association for Aerosol Research and was the Treasurer in 1998 and President of the organization in 2006-07. Professor Biswas is a member of the Steering Committee of the McDonnell International Scholars Academy, and an Ambassador to the Indian Institute of Technology, Bombay.

Professor Biswas is also the Director of the McDonnell Academy Global Energy & Environment Partnership (MAGEEP) and a member of the Steering Committee for I-CARES (International Center for Advanced Renewable Energy & Sustainability). As Chair of the Department, with the faculty he has developed a strategic vision that has led to the growth of a high quality and very productive department.