This is John Abraham's and Bipasha Basu's first film together. They then were in a relationship for 8 years.
While tame by Western standards, the film is sexually unusually explicit for Bollywood standards and has started a new trend of erotic films from the world's most prolific film industry to battle the current (2003) financial crisis (low attendance and series of flops).
Bipasha's Basu's voice was dubbed for the film.
John Abraham's voice was dubbed for the film. A trend that can be seen in other Mahesh Bhatt movies where debut actors have their voice dubbed for example Rahul Roy in Aashiqui.
This movie was inspired by Cuerpos ardientes (1981), which in turn was inspired by the 1944 Billy Wilder directed movie Pacto de sangre (1944).