Principal : 1917 – 1924
Principal : 1925
Principal : 1926 – 1930
Principal : 1930 – 1936
Principal : 1936 – 1942
Principal : 1943 – 1948
Principal : 1949 – 1954
Principal : 1955 – 1956
Principal : 1957 – 1959
Principal : 1959
Principal : 1960 – 1962
Principal : 1962
Principal : 1963 – 1964
Principal :1964 – 1967
Principal : 1967 – 1969
Director : 1968 – 1969
Principal : 1969 – 1975
Director : 1971 – 1974
Director : 1974 – 1975
Principal : 1975 – 1980
Principal : 1980 – 1985
Principal : 1985 – 1986
Principal : 1986 – 1991
Director : 1991 – 1993
Principal : 1991 – 1993
Director : 1993 – 1995
Principal : 1993 – 1996
Director: 1995 – 1996
Principal : 1996 – 1999
Principal : 1999 – 2010
Director : 2005 – 2014
Principal : 2010 – 2011
Director : 2014 – till date