1. Department of Physics, Techno International–Batanagar (Techno India Group), B-7/360 Putkhali, Maheshtala, Kolkata 700141, West Bengal, India
2. Ex-Visiting Scientist, @ Saha Institute of Nuclear Physics (SINP), @Variable Energy Cyclotron Center (VECC), @ Indian Institute of Engineering Science & Technology (IIEST), Kolkata, West Bengal, India
3. Ex-Doctoral and JSPS Postdoctoral Research Fellow @ Department of Physics, Tokyo Metropolitan University, 1-1 Minami Ohsawa, Hachioji-Shi, Tokyo 192-0387, Tokyo, Japan