1. Institute of Forensic Science & Criminology, Panjab University, Chandigarh160014, India
2. Department of Chemistry, DAV College, Sector-10, Chandigarh160011, India
3. Department of Physics, National Institute of Technology, Hazratbal, Srinagar, Jammu and Kashmir190006, India
4. Department of Physics, University of the Free State, P.O. Box 339, BloemfonteinZA9300, South Africa