1. School of Pure and Applied Physics Mahatma Gandhi University Kottayam India
2. Department of Physics St. Cyril's College Adoor India
3. Department of Optoelectronics University of Kerala Trivandrum India
4. School of Chemical Sciences Mahatma Gandhi University Kottayam India
5. International and Inter University Centre for Nanoscience and Nanotechnology (IIUCNN) Mahatma Gandhi University Kottayam India