The history of All Saints High School dates back to 1855 when Rt.

Caproti was appointed as its first rector in 1858.In 1932, the school was handed over to the Montfort Brothers of St. Gabriel.

At the invitation of Bishop Vismara of Hyderabad and on the insistence of Pope Pius IX, the Montfort Brothers of St. Gabriel took charge of the management of the school in 1932 with Rev.

M. Paul, an administrator, took over as the first Indian rector and developed All Saints as one of the best secondary schools in academics and infrastructure in the Nizam's dominion.

Seven children were admitted to the hospital due to breathing problems, but discharged the same day.