1. Diploma in nursing, nursing officer, Professor in Surgery, Professorial Surgical Unit, Colombo South Teaching Hospital, Sri Lanka
2. Professor in Microbiology, MD in Medical Microbiology, Senior lecturer and Consultant Microbiologist, Advanced Certificate Course of Laboratory Technology, Technical Officer, Intern House Officer, Department of Microbiology, Faculty of Medical Sciences, University of Sri Jayewardenepura, Sri Lanka
3. MD in Medical Microbiology, Consultant Microbiologist, Department of Microbiology, Colombo South Teaching Hospital, Sri Lanka