Associate Professor of Environment Management at USEM, GGSIPU, Delhi for the last 15 years. A WATER enthusiast with a Ph.D. in Env. Engineering from D.C.E, D.U. Member of BIS. An Erasmus Mundus Academic Fellow with expertise in Water quality analysis and monitoring, interpretation, & prediction using statistics and modeling, index mapping& vulnerability assessment, Health Risk management, Nanoparticles fate & sorption studies, Synthesis of green materials (including membranes )& Radioactivity and heavy metal removal from water, Microplastics &emerging Nano contaminants, Air Pollution Control