Pravir wrote on 24 Dec 2009
This film was initially titled "Kabhi Alvida Na Kehna", this title was given by Karan Johar’s friend, Aditya Chopra. Later, Karan Johar heard a song from the Kajol-Saif starrer, "Hamesha" in which, the words ‘Kal Ho Na Ho’, were used. He liked the words very much, thought this would the perfect title for this film. Karan called his next film "Kabhi Alvida Na Kehna".