Mr. D.L. Jayasinghe
(1989-1992)
Mr. H.D. Herman Perera
(1992-1994)
Dr. L.A. Vitharana
(1995-1996)
Mr. Somabandhu Kodikara
(1996-2000)
Mr. H.B. Jayaweera
(2001-2003)
Mr. Nimal Fernando
(2003-2006)
Mrs. M.D.I.N. Siriwardena
(2006-2008)