This was India's first widescreen film; it used the CinemaScope process.
Guru dutt last directed film.
First Hindi film to be shot in cinema scope.
The melody of the song "Hum Tum Jise Kehta Hain Shaadi" was inspired by "Que Sera, Sera (Whatever Will be Will Be)," which was written by Jay Livingston and Ray Evans and appeared in the film The Man Who Knew Too Much (1956).
The movie is now considered as one of the best movie of Indian Cinema. This Classic was ahead of times in about 60 years back. At that time because of this movie Guru Dutt lost a lot of money. After this movie Guru Dutt stopped to direct movies and we loss great director.