1. Department of Physics, Y. C. Institute of Science, Satara (MS), India
2. Department of Physics, B.V.M.B.S.K. Kanya Mahvidyalaya, Kadegaon (MS), India
3. Department of Physics, K.R.P. Kanya Mahvidyalaya, Islampur (MS), India
4. Department of Electronics, Shivaji University, Kolhapur (MS), India