The majority of the Catholic schools under the leadership of their respective Congregations are aimed at transforming the surrounding society by conveying holistic education. The Evangelising Sisters of Mary is one of the Catholic Institutes running different schools among the less advantaged people in the society. This paper explains how the Missionary Congregation of the Evangelising Sisters of Mary carries out its education mission in regard to its charism in the church and society. It gives a brief historical background of their foundation and their founders as it expounds on how they manage the whole idea of running schools, financing the schools, maintain discipline, raising academic performance and handling challenges facing the management of the secondary schools under its care.