The school is affiliated to the Mumbai Division Board of Secondary and Higher Education.

The institution has an extensive alumni base, known as "Johannines" spread across the globe.

Following a stay in the United States, he worked to give a try to the broad-based American system of education.

The stately three-storeyed building, with wings spread out to the right and left, capped by an open air terrace, sprang up within a period of two and a half years thanks to the supervision of D'Souza and the efforts of architect Vyom Keshav of "Studio Arch".

At the request of the Educational Department, a junior college was attached to the high school from June 1979.