This song moves me every single time I listen to it. Too many awesome things to list but here are some - lovely sitar, Bhupinder holding his own singing with Lata AND probably one of the best hand-offs in a duet when Lata's hoo.. is continued by Bhupinder in the antara.
R.D. Burman had initially planned to use Kishore Kumar for the male vocal in this song. When Kishore heard the semi-classical composition, he felt that it would suit Bhupinder Singh's voice better, and R.D. Burman decided to go with his suggestion.
Jeetendra was not happy with this song and wanted it removed from the film. To do so, he tried to enlist the support of Amitabh Bachchan who was visiting the film's sets to meet Jaya Bhaduri. As it turned out, Bachchan was so moved by the song that it was Jeetendra who changed his mind.