1. Department of Chemistry, V.O. Chidambaram College, Tuticorin, Tamil Nadu, India
2. Affiliated to Manonmaniam Sundaranar University, Tirunelveli, Tamilnadu, India
3. Department of Chemistry, Saveetha School of Engineeing, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamilnadu, India
4. Department of Chemistry, Pope’s College (Autonomous), Thoothukudi, Tamil Nadu, India