1. National Institute of Technology,Ph.D Research Scholar, High Voltage & Insulation Laboratory,Department of Electrical Engineering,Durgapur,West Bengal,India
2. National Institute of Technology,Project Associate, Centre of Nanoscience Lab, Department of Physics,Durgapur,West Bengal,India
3. CSIR-National Physical Laboratory,Electrical & Electronics Metrology Div.,Scientist, AC HV & Current Metrology Section,New Delhi,India,110012
4. National Institute of Technology,Professor (HAG), Centre of Nanoscience Lab, Department of Physics,Durgapur,West Bengal,India
5. National Institute of Technology,Professor (HAG), High Voltage & Insulation Laboratory,Department of Electrical Engineering,Durgapur,West Bengal,India