1. Department of Chemistry, Kunthavai Naacchiyaar Government Arts College for Women (Autonomous), Thanjavur 613007, Tamil Nadu, India
2. PG and Research Department of Chemistry, Presidency College (Autonomous), Chennai 600005, Tamil Nadu, India
3. Department of Physics, A.V.V.M Sri Pushpam College (Autonomous), Poondi, Thanjavur 613503, Tamil Nadu, India
4. PG and Research Department of Chemistry, Periyar E. V. R. College (Autonomous), Tiruchirappalli 620023, Tamil Nadu, India