1. Department of Physics, V.M.V. Commerce, J.M.T. Arts, J.J.P. Science College, Nagpur, India
2. Department of Physics, K.D.K. College of Engineering, Nagpur, India
3. Shri Ramdeobaba College of Engineering and Management, Nagpur, India
4. Department of Physics, RTM Nagpur University, Nagpur, India