St. Mary's Senior Secondary School established in 1996, is a Minority Catholic School under the management of Delhi Catholic Archdiocese. It serves the Educational needs of Trans-Yamuna Catholics and all sections of the society, regardless of caste, creed or financial status.
The School is affiliated to CBSE with Affiliation No. 2730473 The Students are prepared for the CBSE Examination at Class X and XII level.
The Administration of the School is entrusted to the C.J. (Congregation of Jesus) Sisters. The congregation was founded by Mary Ward, a valiant English lady in 1609, to cater to the education of youth with special emphasis on moral and spiritual formation, in response to the needs of the time. St. Mary's School is beautifully situated in the Trans-Yamuna area, in Mayur Vihar-III. It is on the border of Delhi and Uttar Pradesh.