1. Cornea and Refractive Services, Aravind Eye Hospital and Post graduate Institute of Ophthalmology, Tirunelveli, Tamil Nadu, India
2. Casualty Medical Officer, Tirunelveli Government College Hospital, Tirunelveli, Tamil Nadu, India
3. Paediatric and Strabismology Services, Aravind Eye Hospital and Post graduate Institute of Ophthalmology, Tirunelveli, Tamil Nadu, India