1. Research and Development Centre, Bharathiar University, Coimbatore, Tamil Nadu, India
2. Department of Chemistry, Government College of Engineering, Bargur, Tamil Nadu, India
3. PG & Research Department of Chemistry, Muthurangam Government Arts College (Autonomous), Vellore, Tamil Nadu, India
4. Department of Chemistry, Sun Arts and Science College, Tiruvannamalai, Tamil Nadu, India
5. Department of General Studies (Physics Group), Jubail University College (Male Branch), Royal Commission of Jubail, Jubail, Kingdom of Saudi Arabia