Parveen Babi was the heroine of this film she shot for the good song Har Ek Raasta Sajake Chal...... After completing the shooting of this song, she went away forever, this song very beatifully Picturised by The Director Amjad Khan. The song was retained in the film. Then Zeenat Aman did the Heroine role.
Amitabh Bachchan did appear in an friendly appereance scene in this film. After this film, Amjad Khan was to start a film tittled Lambai Chaudai starring Amitabh Bachchan and Amjad Khan, but things went wrong.
This was the final movie that Amitabh Bachchan and Amjad Khan appeared together, albeit Bachchan playing himself in a special appearance. Amjad Khan died in 1992 while Amitabh Bachchan had a temporary retirement.
The song Aisa Kyon Hota Hain was later the source of inspiration for the song Pyar Hua Chupke Se from 1942 A Love Story.
While Zeenat Aman is modeling ,Ron Carter's instrumental "I Cant Give You Anything (But My Love) is playing. The song was previously used in Do Anjaane while Amitabh is driving his car.