1. Department of Pharmacology and Community Medicine, Trichy SRM Medical College Hospital and Research Centre, SRM Nagar, Trichy Chennai Highway, Near Samayapuram, Trichy, Tamil Nadu, India
2. Department of Community Medicine, Shri Sathya Sai Medical College and Research Institute (SSSMC and RI), Sri Balaji Vidyapeeth (SBV) – Deemed to be University, Chengalpet, Chennai, Tamil Nadu, India
3. Senior Operational Research Fellow, International Union Against TB and Lung Diseases, Paris, France