Prof. T. Varagunam
January 1973 – October 1980

Dr. Palitha Abeykoon
November 1980 – August 1982

Prof. P. T. Jayawickramarajah
September 1982 – May 1984

Dr. Gamini Premadasa
June 1985 –  October 1987

Prof. K. Jayasena
March 1988 –  December 1989

Dr. Ranil Abeyasinghe
January 1990 – May 1994

Dr. Nimal D. Kasturiaratchi
June 1994 – August 2003

Prof. Ananda S. B. Wijekoon
September 2003 – September 2005

Dr. T. N. C. Athurapya
December 2005 – 2008

Prof. Kosala N. Marambe
January 2009 to date