The Indian Province of the Brothers of St. Patrick celebrated its centenary in 1975 at Madras. It was a grand celebration indeed. In 1875, three Irish Patrician Brothers - Ignatius, Paul and Fintan - began their mission by taking care of the destitute and orphan boys of the Arch-diocese of Madras. They founded the St. Patrick's High School and orphanage. Their strong faith enabled them to dedicate themselves to the primary object of their mission in those difficult days. 

As time went on, the Brothers were able to extend their mission of educational apostolate to other parts of India. St Joseph's College, Coonoor (South India), a hill station, was started in 1892. The following year the Brothers took over St. George's College and St. Fidelis High School in Barlowganj, Mussoorie (North India) from the Capuchin Fathers. 

The origins of St. Patrick's High School and Orphanage in Madras are outlined in the following historical quotation. 

"The Institution continued till May 1856, when capitation grants were secured from Government and towards the end of 1863, a substantial two storeyed building was erected within the Church Compound with the aid of a government building grant. (This building is now St. Mary's High School for day pupils.) It was then discovered that the supervision was not as satisfactory as the Brothers of ST. Patrick (a religious community of vigilant and industrious Irish Monks) would have wished. The achievements of these worthy educationalists have been acknowledged by successive inspectors of schools. The institution cotinued to grow and develop and, in order to obtain more suitable and commodious premises in a better locality, the superiors of the Brothers went on a mission to Europe, America and Australia and succeeded in realising the large sum of nearly Rs. 27, 000/-. This success, together with the encouragement by Government for the support of the orphans and destitute children under the grant-in-aide code, enabled the managers to purchase the large property known as Shikar Bagh or Elphinstone Park - the residence of a former Governor - in South Adyar on 1st July 1884." 

The Brothers established St. Anthony's High School, Lahore (Pakistan) in 1911. St. Joseph's Academy, Dehra Dun, was established in 1934 and that was followed by St. Michael's Academy, Madras in 1951 and St. Mary's Academy in Meerut in 1952. Mount St. Mary's School. Delhi was started in 1963. It was only in 1948 that St. Fidelis Orphanage was amalgamated with St. George's College in the same Campus in 1949.