Dr. Tarun Gupta is currently Associate Dean of Research and Development and  and N C Nigam Chair Professor at the Department of Civil Engineering, Indian Institute of Technology (IIT) Kanpur, India. He holds a Doctor of Science (2004) in Environmental Health from Harvard University (USA) and Master of Technology (2000), Environmental Science and Engineering from IIT Bombay. He has published more than 125 articles in ISI indexed journals, 4 books, 8 book chapters, and filed 8 Indian patents. A submicron aerosol sampler designed, developed and evaluated at the IIT Kanpur has since been commercialized by Envirotech (Delhi) and another technology transferred to BARC, Mumbai. He has developed several low-flow-rate and high-flow-rate impaction-based samplers and a non-selective membrane-based diffusion denuder. He has won INAE Entrepreneur and Innovator Award (2018), membership of INYAS (2016), PK Kelkar Research Fellowship (2015), NASI Scopus Young Scientist (2015), INSA Young Scientist (2011), INAE Young Engineer (2009), and IEI Young Engineer (2008) Awards. Dr. Swatantra Pratap Singh is an Assistant Professor at IIT Bombay in the Centre for Environmental Science and Engineering. Before this he was a post-doctoral scholar in the Zuckerberg Institute of Water Research at Ben-Gurion University, Israel. He is an environmental engineer with training in pollution control, and has received his Ph.D. and M.Tech from the Indian Institute of Technology Kanpur, India. His research focuses on the low cast membrane-based treatment units for water and wastewater treatment, and the generation of catalytic membranes with high flux and better selectivity and the use nanomaterials to address environmental challenges. He has published 14 articles in reputed journals, 2 book chapters and holds 3 patents.  Dr Prashant Rajput is a CSIR-Senior Research Associate in the Department of Civil Engineering at IIT Kanpur. He received his M.Sc. in Chemistry from University of Allahabad and his PhD from Physical Research Laboratory, Ahmedabad, India. Post to PhD., he has also worked in the Department of Civil and Environmental Engineering at University of Surrey, Guildford, UK; Lovely Professional University, Jalandhar, Punjab, India and Physical Research Laboratory, Ahmedabad, Gujarat, India. Dr Rajput’s research interests are in atmospheric & aerosol chemistry, air pollution, source apportionment, risk assessment and particles measurement. He has published 30 journal articles and 4 book chapters.  Prof. Avinash Kumar Agarwal joined IIT Kanpur in 2001. He worked at the Engine Research Center, University of Wisconsin at Madison, USA as a Post-Doctoral Fellow (1999 – 2001). His interests are IC engines, combustion, alternate and conventional fuels, lubricating oil tribology, optical diagnostics, laser ignition, HCCI, emissions and particulate control, and large bore engines. Prof.Agarwal has published 270+ peer reviewed international journal and conference papers, 35 edited books, and 63 books chapters. He is an associate editor of ASME Journal of Energy Resources Technology, and has edited the Handbook of Combustion, Wiley VCH, Germany. Prof. Agarwal is a Fellow of SAE, ASME, NASI, Royal Society of Chemistry, ISEES, and INAE. He has been the recipient of several prestigious awards such as Clarivate Analystics India Citation Award-2017 in Engineering and Technology, NASI-Reliance Industries Platinum Jubilee Award-2012; INAE Silver Jubilee Young Engineer Award-2012; Dr. C. V. Raman Young Teachers Award: 2011; SAE Ralph R. Teetor Educational Award -2008; INSA Young Scientist Award-2007; UICT Young Scientist Award-2007; INAE Young Engineer Award-2005. Prof. Agarwal received Prestigious Shanti Swarup Bhatnagar Award-2016 in Engineering Sciences.