1. Department of Physics, Lovely Professional University, Phagwara, India
2. Department of Physics, University of Lucknow, Lucknow, India
3. Department of Physics, Govt. V.Y.T. P.G. Autonomous College, Durg, India
4. Department of Physics, Shri Jai Narain Post Graduate College (KKC), Lucknow, India
5. Department of Polymer and Process Engineering, Indian Institute of Technology Roorkee, Sahranpur, India