The society of Pilar, an Indian Christian organization was founded in Goa in 1887 by Fr. Bento Martins, with the sole aim of sharing the Gospel of true human well-being as proclaimed by Jesus Christ. Initially, the activity of its members was limited to Goa and its surrounding areas. However, in 1939, the Society received a new thrust and vitality, and from then on, its members ventured to work far and wide in different parts of India, zealously spreading the Gospel that Jesus lived and died for.

One of the focuses of the Society's work has been in the field of education. Today the Society of Pilar has about 80 Residential units and about 450 members working in several parts of India from Jammu in the north to Chennai in the south, from Gujarat and Mumbai in the west to far-flung Andaman Islands. The Society runs schools and Colleges and several Hostels and Orphanages, besides other social welfare activities. The Mumbai Province of the Society of Pilar, Goa of which Fatima High School, Ambarnath is a part.