1. Department of Physics Thanthai Periyar Government Institute of Technology Vellore Tamil Nadu India
2. Department of Physics Thanthai Periyar EVR Government Polytechnic College Vellore Tamil Nadu India
3. Department of Chemistry School of Physical Sciences and Computational Sciences, Avinashilingam Institute for Home Science and Higher Education for Women Coimbatore Tamil Nadu India
4. Department of Organic chemistry School of chemistry, Madurai Kamaraj University Madurai Tamil Nadu India