St.Mary's School, Mainpuri was founded in the year 1985 by eminent educationists and practical visionaries of long mature experience in the field of education. The city of Mainpuri, being a rapidly developing area, it was felt by manywell wishing friends and citizens that the city needed a school of broad and modern education system to cater to the needs of primary stage growing children so that from the very beginning they could imbibe and receive instructions on the latest approach to the education with the aid of modern teaching methods. Having received wide acclamation and support the school has made rapid progress in all spheres over the past three decades.

Originally conceptualized by Mrs. S. Das, Ex-Principal of Kr. R. C. Kanya Inter College, Mainpuri - A veteran in the field of child education and strict disciplinarian, the school was transformed into one of the best schools of MainpuriDistt. Today the school community is comprised of more than 3000 students served by well-qualified, experienced and dedicated staff representing diverse religions and cultural backgrounds. The School Management has made combined efforts to develop high quality academic programs so that the needs of both the students and the local community could be served and vision of providing holistic education be fulfilled.