1. Deptt of Physics, Saket Mahavidhyalaya, Ayodhya, Ayodhya, India
2. Department of Chemistry, GCRG Engineering College, Lucknow, India
3. Department of Physics, Maa Anjani, Mahavidhyala, Jaganpur Dehat, India
4. Department of Physics, Marwar Business School, Gorakhpur, India