Fellow, Maharashtra Academy of Sciences (Since 1993)
Fellow, The Institution of Engineers (India), Kolkata (Since 2003)
Fellow, Indian Institute of Chemical Engineers (Since 2004)
Fellow, Madras Science Foundation (Since 2012)
Chairman, Indian Institute of Chemical Engineers ‑ Pune Regional Centre (1993-96, 1998-2001)
Chairman, Indian Institute of Chemical Engineers – Nagpur Regional Centre (2004-07)
President, Indian Association of Environmental Management, Nagpur (2003-08)
President, Association of British Scholars, Nagpur Chapter (2004-08)
Member, INSA IGBP Sub-committee, Environment (2009-14)
Member, IUPAC, Environment Sub-Committee (2009-14)
Chairman, DST PAMC, National Programme on Carbon Sequestration - NCPS (2012-15)
Member, DST Task Force on Green Chemistry, New Delhi (2006-12)
Member, Executive Council, Dr. Babashaeb Ambedkar Technological University, Lonere, Maharashtra (2009-2013)
Expert Review Member, European Commission - Director General for Research & Innovation Projects on Environment, Brussels.
Editorial Board Member, International Journal of Refrigeration of IIR, Elsevier, UK (1997-2008)
Editorial Board Member (1985-2008) & Regional Editor (1997-2008), Applied Thermal Engineering, Elsevier, UK
International Advisory Board Member, International Journal of Refrigeration of IIR, Elsevier, UK (2008-16)
International Advisory Board Member Applied Thermal Engineering, Elsevier, UK (2008-16)
Member, Project Advisory Committee for International Division in the area of Earth Sciences, DST, Ministry of Science & Technology, New Delhi (2003-08)
Member, Board of Studies (Chem. Engg.), Shivaji University (2000-2005)
Chairman, Local Advisory Committee of Raman Science Centre, Nagpur (2003-08)
Chairman, Board of College & University Development, Nagpur University (2004-08)
Member, Senate, Visvesvaraya National Institute of Technology, Nagpur (2003-08)
Member, Academic Council, Nagpur University (2003-2008)
Member, Committee for considering the Autonomous Status to Laxminarayan Institute of Technology (LIT), Nagpur University, Nagpur (2003-2006)
ILTP Area Coordinator for Ecology and Environment, DST, Ministry of Science & Technology, New Delhi (2003-)
Member, Committee for governance and management of Laxminarayan Institute of Technology, Nagpur (2004-08)
Member, Advisory Board of Central Institute of Business Management Research & Development, Nagpur (2005-08)
Member, Advisory Board for the Integral Development of the S.F.S. Centre for Biotechnology, St. Francis De Sales' College, Nagpur (2005-08)
Member, Board of College and University Development of Amravati University (2006-08)
Member, Academic Senate of Sri Ramchandra Medical College and Research Institute, A Deemed University, Chennai, (2006-08)
Member, UNEP Technical and Economic Assessment Panel (TEAP), (2024-)
Member of UNEP Technical Options Committee (1991-)
Member, Central Pollution Control Board (CPCB), New Delhi (2015-2018 )
Co-chair, UNEP DTF (1991-92)
Co-Chair, UNEP, RTF (2016-17)
Chairman, VASVIK Award – Environmental Science & Engineering (2010-)
Member, Board of Directors, ACTRF (Since 2024)
Chairman, Research Advisory Board, A.M. Murugappa Chettiar Research Centre (MCRC), Chennai (2014-2025)
Member, Empowered Steering Committee and Technology & Finance Standing Committee on Montreal Protocol, Ozone Cell, Ministry of Environment & Forest, New Delhi (1992-2002)
Member, High Level Task Force for Multilateral Environmental Agreement (Montreal Protocol), Ozone Cell, Ministry of Environment & Forests, New Delhi (1992-2002)
Member, World Bank Ozone Operation Research Group -New OORG (2008-2013)
Chairman, Maharashtra State Expert Appraisal Committee (SEAC) (2011-2013)
Director, Board of Directors, and Member, Audit Committee, KIOCL, Bangalore (2006-09)
Director, Board of Directors and Member, Audit Committee, HOCL Mumbai (2006-09)
Member, Accreditation Committee- EIA Consultants, QCI-NABET, New Delhi (2011-14)
Coordinating Lead Author (CLA), LA and member of IPCC (1999-2003)
Member, Supreme Court Monitoring Committee on Hazardous Waste Management in the matter of WP 657/95, Ministry of Environment & Forests, New Delhi (2003-07)
Member, Expert Group on Basel Convention on Hazardous Wastes, Ministry of Environment & Forests, New Delhi (2003-08)
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