The 57th and 2013 edition of the book says the City Montessori School (CMS) in Lucknow had a record enrolment of 39,437 pupils on Aug 9, 2010, for the 2010-11 academic year.u00a0School authorities said that the number of pupils now stood at 45,000-plus.

The entry in the Guinness has enthused the students and staff. “We are very happy that not only our size but also our philosophy of world peace is being recognised at a global level,” said school founder Jagdish Gandhi.