Provision of quality education, a felt need of the newly developed Janakpuri colony in the seventies was met with the opening of St. Mark’s school in January 1975 by the visionary founder Chairman Mr. T.P. Aggarwal. The school which had a modest beginning grew by leaps and bounds and in a few years’ time there was an all round expansion in the enrolment of students, enlargement of the school building, growth in the number of teaching and other staff and upgradation of the school from middle to senior secondary level.