(Image source from: Filmfare)

One of the most loved Bollywood films back in the day and even here and now - '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 topnotch 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.

A film I absolutely loved writing....My fathers last release....an immortal melody and an incredible cast and crew....I love you so much #KalHoNaaHo it’s been 15 years.... pic.twitter.com/7ggf6Aft8v

— Karan Johar (@karanjohar) November 28, 2018

In his next tweet, he thanked Nikkhil Advani for donning the director's hat and superstar Shah Rukh Khan for "making this film happen."

Will always be grateful to @nikkhiladvani and the entire cast and crew for making the journey special! And the incredible @iamsrk for making this film happen!!! #15YearsOfKalHoNaHo" added KJo.

Will always be grateful to @nikkhiladvani and the entire cast and crew for making the journey special! And the incredible @iamsrk for making this film happen!!! #15YearsOfKalHoNaHo

— Karan Johar (@karanjohar) November 28, 2018

The 'Koffee With Karan' host even shared a video celebrating the milestone. With the title track playing in the background, it includes different scenes from the film and even some behind-the-scenes shots that also feature KJo.

#15YearsOfKHNH pic.twitter.com/0n6Es9PTNs

— Karan Johar (@karanjohar) November 28, 2018