1. Department of Electronic and Communication Engineering, National Institute of Technology Agartala, Agartala, Tripura 799046, India
2. Department of Physics, National Institute of Technology Agartala, Agartala, Tripura 799046, India
3. Department of Electronics and Instrumentation Engineering, National Institute of Technology Agartala, Agartala, Tripura 799046, India
4. Department of Physics, Kazi Nazrul University, Asansol, 713304 West Bengal, India