1. Assistant Professor, Department of Community Medicine, Lady Hardinge Medical College and associated hospitals, New Delhi
2. Resident, Department of Otorhinolaryngology, VMMC and Safdarjung Hospital, New Delhi
3. Professor, Consultant and Head, Department of Psychiatry, VMMC and Safdarjung Hospital, New Delhi
4. Director, Professor and Head, Department of Community Medicine, Lady Hardinge Medical College and associated hospitals, New Delhi