CMS, RDSO was established in the year 1964. Under the able guidance of the Former Principal Mrs. SwapnaMansharamani the school made immense progress and now MrsAruna Naidu 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 MrsAruna Naidu 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.