The film was inspired from the film Fatal Attraction. Sanjay Gupta wanted to make the film with Anil Kapoor,Juhi Chawla and Manisha Koirala. For unknown reason's the film did not take off. Later Gupta bashed Pyaar Tune Kya Kiya in print calling it a horrible film. Arbaaz Khan wanted to remake Fatal Attraction with Zeenat Aman in 1993/1994. He had signed Abbas Mustan to direct the film. Arbaaz was to act and produce the film. Once again it was shelved for unknown reasons.
When Ram Gopal Varma started the film, Urmila kept insisting that Hrithik Roshan be signed for the film.Ram Gopal had signed Fardeen for a 3 film contract , thus Fardeen was signed.
The film was initially titled " Jazbaa".
Manoj Bajpai was almost signed for the lead role. They decided they needed some one more glamorous.
Neha ( Shabana Raza) auditioned for the film and was not selected. Sonali Kulkarni was later signed. Rajat stated he was not happy with her body language. One story that was doing the rounds was that after Ram Gopla Verma and Manoj had a bad falling out,Manoj was replaced from the film. Once he was ejected from the film he told his then girlfriend Neha to walk out of the film.