Drector, CSIR-National Environmental Engineering Research Institute (NEERI)
Centre for Precision Engineering, Materials and Manufacturing Research & Nanotechnology and Bio-Engineering Research Division, Department of Environmental Science, Institute of Technology, Sligo, Ash Lane, Sligo, Ireland
Associate Professor, School of Dentistry, Seoul National University, Republic of Korea
Associate Professor, Department of Chemical Sciences. Indian Institute of Science Education and Research (IISER), Kolkata,West Bengal, India
Senior Scientist, Wastewater Technology Division, CSIR-National Environmental Engineering Research Institute (NEERI)
Principal Scientist & Head Kolkata Zonal Center, CSIR-National Environmental Engineering Research Institute (CSIR-NEERP)
Director, Research Cell, CSIR-National Environmental Engineering Research Institute (NEERI)
Chief Scientist & Head, Environmental Materials Division, CSIR-National Environmental Engineering Research Institute (NEERI)
Scientist-C, Institute of Nano Science and Technology, An Autonomous Institute supported by Department of Science & Technology, Govt. of India