By 1936, St. Patrick's was a full-fledged high school and celebrated its silver jubilee.

They introduced the old house system of four i.e. Patrick, Gabriel, Andrew and David among the students for healthy competition.

Later at the beginning of the 21st Century the house system was changed to five i.e. Gandhi, Ambedkar, Akbar, Loyola and Xavier.

In 1973, the administration was transferred to the Jesuit Fathers of Andhra Province, belonging to the Society of Jesus (founded by St. Ignatius of Loyola).

The school has five houses – Gandhi, Loyola, Akbar, Ambedkar and Xavier – represented by green, red, blue, yellow and pink respectively.

The school provides extra-curricular activities – sports and competitions, including football, basketball, cricket and tennis teams.

It conducts an annual inter-school basketball tournament organised by the alumni association, named after their former principal the late Father Devasia.

The school emblem consists of a green shield inscribed with two golden crosses on the upper right and lower left corners.