CMS, RDSO was established in the year 1964. Under the able guidance of the Former Principal Mrs Swapna Mansharamani the school made immense progress and now Mrs Jyotsna Atul is leaving no stone unturned in her efforts of taking the school to new heights with her dedication hard work and high sense of discipline. As the blue lavender flower that grows on the hillside among the green ferns and is much sought after for its fragrance and beauty, so grows this unique CMS campus in one corner of Lucknow attracting students from far and near. The high academic standards focus on total personality development, to games and sports and a seriousness of purpose in all its activities this gives CMS RDSO its special place among all the CMS campuses. Principal Mrs Jyotsna Atul spares no effort in bringing out the best in each child and inspires the students and teachers to aim high and reach for the stars. EXSPO or Excellence in Sports is an International Sports Olympiad organized by this branch in which the junior and senior level students participate. Events include all track and field items, sports like judo, karate, badminton, table-tennis, chess and team games like football along with the ever popular cross country run or marathon for boys and girls-Sports stars from across the globe come here to inspire the players.

The Branch also organizes WIZMIC or International Mathematics Olympiad in which students from different countries gather together to test their skills in Mathematics. They also interact with renowned mathematicians of the world.

Annual Parents Day, Sports Day, Model Class Presentation, Divine Education Conferences, Art and Craft Exhibitionetc. are organized by the branch to give a new meaning to education. In the Pre-Primary section, students are taught through story enactment, poem recitation, pictures, music and dance all of which go to make learning a pleasure. The dedicated staff members conduct remedial classes for the betterment of children. Home visit scheme and the teacher-guardian system bring parents and teachers closer to the children.

Once the teacher and taught develop a bond of love and understanding, the school becomes an extended family and growth of the child is spontaneous and rapid. In this regard, CMS RDSO has taken great strides and the students remain a class apart with passion in their eyes and strength in their soul.