Chair Professor, National Jal Jeevan Mission (NJJM), Ministry of Jal Shakti (Govt. of India)
Professor (HAG), Department of Chemical Engineering
Indian Institute of Technology Guwahati
Guwahati - 781039, Assam, India
Member, The National Academy of Engineering of Korea (NAEK, 韓國工學翰林院)
Directors, Electronic Materials Processing Lab (EMPL)
Center for Environmentally Friendly Cleaning Technology
Professor, Department of Materials Science and Chemical Engineering
Hanyang University (漢陽大學校) ERICA Campus
Ansan 15588, Korea