1. P.G. Department of Chemistry, Karnatak University, Dharwad, Karnataka, India
2. Sigma-Aldrich Chemicals Pvt. Ltd., Research and Development Section, Bangalore, Karnataka, India
3. Department of Physics, M. S. Ramaiah Institute of Technology, Bangalore, Karnataka, India
4. P.G. Department of Chemistry, P.C. Jabin Science College, Hubli, Karnataka, India