Rishi Kapoor was the original choice for the film.
Remake of Romance For A Bugle.
The song "Yeh Jab Se Hui, Jiya Ki Chori" has been made with just a small innocent mistake made in the end. The first line of the song means "From the time my heart has been stolen" with the theft being represented by the word "Chori". But perhaps accidently, while singing the track, Lata Mangeshkar sings "Chhori" instead of "Chori" in the end of the song which actually means "A girl" in Hindi. The error comes just in the last line sung and therefore possibly didn't strike to anyone while recording it in the studio.