The 512 students came from diverse religious backgrounds: 337 Catholic, 98 Hindus, 45 Parsis, 20 other Christians, ten Muslims, and two Jews.

German fathers founded and ran the school, but during World War I they were sent to concentration camps[citation needed]; Jesuits from Tarragona Spain and some from Switzerland filled in for them.

In 1948 a night school was opened with members of the Catholic Young Men's Sodality as staff; it soon had an enrollment of 200 for courses like fitting and mechanics.

Fragments of its history are visible in the corridors of the primary section in the form of stuffed hunted animals shot by priests during the British Raj.

At one corner of the primary quadrangle is a section of a ship's propeller which landed there at the time of the Bombay Harbour Explosion of 1944.

All students of the secondary school belong to one of four houses - Claver (blue), Gonzaga (yellow), Britto (red), Berchmans (green).