1. Department of Chemistry, Nallamuthu Gounder Mahalingam College, Pollachi, India
2. Department of Chemistry, Karpagam Academy of Higher Education (Deemed to be University), Coimbatore, India
3. Centre for Analysis, Testing, Evaluation & Reporting Services (CATERS), CSIR-Central Leather Research Institute, Adyar, Chennai, India
4. Department of Chemistry, Presidency College, Chepauk, Chennai, India