1. Department of Chemistry, School of Physical Sciences, Mizoram University, Aizawl 796004, Mizoram, India
2. Department of Chemistry, Guru Nanak Dev University, Amritsar, Punjab 143005, India
3. Department of Physics, Assam University, Silchar 788011, India
4. Department of Industrial Chemistry, School of Physical Sciences, Mizoram University, Aizawl 796004, Mizoram, India