Dr. Sibdas Bandyopadhyay was awarded Ph.D. (Applied Chemistry) from the erstwhile Indian School of Mines (Indian Institute of Technology-ISM), Dhanbad, India in 1981. He pursued applied research at ISM specializing in utilization of low-grade china clays and pozzolanic clays. In 1982, Dr. Bandyopadhyay joined CSIR- North East Institute of Science and Technology (NEIST), Jorhat, Assam for carrying out industrial research on mini cement plants, beneficiation and agglomeration of iron ore fines under CSIR-SAIL collaborative programme. Subsequently, Dr. Bandyopadhyay served CSIR- Central Glass and Ceramic Research Institute (CGCRI), Kolkata for 23 years and as the founder of ceramic membrane activities, he initiated application oriented research on development of low-cost ceramic membranes and their utilization in the purification of arsenic and iron contaminated ground water for downsizing the community models for production of quality drinking water. After serving CSIR for 30 years, Dr. Bandyopadhyay joined his alma mater as adjunct professor in the Department of Environmental Science & Engineering, IIT-ISM. During 2014 -2017, he was associated with the Department of Environmental Studies, Visva-Bharati (A Central University), Santiniketan, India as CSIR Emeritus Scientist for system design on fluoride removal. Currently, he is attached with an international NGO, Water for People, for community application of membrane based treatment process and reuse of wastewater.