Director General, Sustainable Development & Circular Economy Research Centre, ISWMAW & Founder and President, International Society of Waste Management, Air and Water (ISWMAW);

Founder Coordinator, Centre for Sustainable Development & Resource Efficiency Management, Jadavpur University, India

Formerly: Dean, Faculty of Engineering & Technology, Professor & Head, Department of Mechanical Engineering, Jadavpur University, India;

and

Formerly: Director, The Dattopant Thengadi National Board for Workers Education and Development (DTNBWED) (erstwhile Central Board for Workers Education), Ministry of Labour & Employment, Govt. of India