Glaxo-Allenbury's (Ceylon) Ltd.,

College de France (Biochemistry) Paris, Edinburgh Medical School (Biochemistry), University Of Texas (Galveston), Harvard School of Public Health (Population Sciences), Harvard Medical School (Lab of Human Reproduction and Reproductive Biology), University of Maryland (College Park, Lab. Chemical Evolution), University of Muenster Germany (Inst for Pneumoconiosis and Occupational Health)

Central Environmental Authority, Sri Lanka (Board Member), Ministry of Cultural Affairs, Sri Lanka (Consultant, Environment and Landscaping). Sports - Boxing and Rowing.

Chevalier dans l'Ordre des Palmes Academiques