One of the most loved Bollywood films ' 'Kal Ho Naa Ho' has clocked 15 years. Starring Shah Rukh Khan, Preity Zinta and Saif Ali Khan, the film was written by Karan Johar, who co-produced it with his father Yash Johar under their Dharma Productions banner.

The ace filmmaker took to social media to mark the special day. 'A film I absolutely loved writing....My father's last release....an immortal melody and an incredible cast and crew....I love you so much #KalHoNaaHo it's been 15 years,' he wrote.