1. Department of Engineering Physics, Faculty of Engineering and Technology, KBNU Gulbarga, Gulbarga, Karnataka, India
2. Department of Physics, Gulbarga University Kalaburagi, Gulbarga, Karnataka, India
3. Department of Physics, KCT Engg College Kalaburagi, Gulbarga, Karnataka, India
4. ECM Department, JBIET Moinabad, Hyderabad, Telegana, India
5. Department of Mechanical Engineering, PDA College of Engineering Gulbarga, Gulbarga, Karnataka, India
6. Department of Physics, Government First Grade College Yelburga, Koppal, Karnataka, India