City Montessori School (CMS) is the largest school in the world, recognized by the Guinness Book of World Records, with over 60,000 students and 4,500 staff across 20 campuses in Lucknow, India. Founded in 1959 by Dr. Jagdish Gandhi and Dr. Bharti Gandhi, CMS focuses on providing quality education and overall development for its students, with a vision of creating socially conscious citizens of India and the world. The school is affiliated with the Council for Indian School Certificate Examination (CISCE) and emphasizes moral character building, a global outlook, and international exposure. CMS organizes around 30 international events for students, including the biggest International Science festival called Quanta at the Chowk Campus, where students from different countries come together to share ideas and compete in various subjects.