1. Postgraduate & Research Department of Chemistry N.S.S Hindu College Changanacherry India
2. Postgraduate & Research Department of Chemistry Sree Sankara College Kalady India
3. School of Chemical Sciences Mahatma Gandhi University Kottayam India
4. International and Inter University Centre for Nanoscience and Nanotechnology (IIUCNN) Mahatma Gandhi University Kottayam India