1. Compulsory Rotatory Residential Internship, Department of Public Health Dentistry, Priyadarshini Dental College and Hospital, Thiruvallur, Tamil Nadu, India,
2. Professor and Head, Department of Public Health Dentistry, Priyadarshini Dental College and Hospital, Thiruvallur, Tamil Nadu, India,
3. Senior Lecturer, Department of Public Health Dentistry, Priyadarshini Dental College and Hospital, Thiruvallur, Tamil Nadu, India,