1. Department of Applied Science, Women Institute of Technology, Dehradun, 248007, Uttarakhand, India.
2. Department of Physics, Govind Ballabh Pant University of Agriculture & Technology, Pantnagar, 263145, Uttarakhand, India.
3. Department of Physics, School of Physical, Chemical and Applied Sciences, Pondicherry University, Kalapet, 605014, Puducherry, India.
4. Department of Sciences (Physics), Manav Rachna University, Faridabad,121004, Haryana, India.