Mayo College, reckoned as the Eton of India, opened with Sir Oliver St. John as the first Principal, Initially meant only for the sons of chiefs, princes and kings, the School opened its doors for students from all walks of life in the year 1947. With time, the School has proved itself at its core essence of multifaceted development of the students revolving around but not limited to their psychological, physical and creative aptitude from last 150 years. Today, the School is ranked No. 1 in Boarding Schools of India by Education World along with the Doon School of Dehradoon.

Mayo College Girls School (MCGS) came into being on August 1, 1988 as a purely residential English medium school. Known as the “sister school” of Mayo College, the school strives to meet the vision envisaged by its founders the Mayo College General Council and the Board of Governors to ensure that the girls acquire a broad range of skills, love of learning, tolerance and respect for the beliefs of others and basic values of truth and honesty. State of the art facilities for games and extra/co-curricular activities speak for the emphasis laid on the development of the child outside and beyond the classroom.

Mayoor School, a co-educational day school was constituted on July 9, 1980 under the auspices of the Mayo College General Council, Ajmer. Affiliated to the Central Board of Secondary Education (CBSE), New Delhi, the School aims to provide the best in holistic education. Set against the scenic backdrop of Madar Hill, the school premises encompass the historic Waddington Grounds, which at one time were the best football grounds of Mayo College. The School, situated on the Mayo College campus, offers a wide range of diversified sports and extra-curricular activities, which have now become a hallmark of the institution.