Producer Karan Johar announced the film via Twitter on 11 October 2017, revealing that it would be made into a film trilogy.[11][12] The preparation for the film started in January 2018.[13] In an interview, Kapoor revealed that Mukerji "has spent six years of his life working really hard to make an original story" and that the trilogy would be made over a period of 10 years[14] and refuted rumours suggesting that it is a romantic superhero film. Instead, Kapoor confirmed that the film is a "romantic-fairytale in a supernatural format." and that the film is not something which "doesn't have truth to it, or which is unbelievable".[14]