Kishore Kumar and Lata Mangeshkar were the only plaback singers of this film. This is the first and last film which had story, screenplay & dialoges by Kader Khan. In 1982 after this film, Kader Khan was going to make debut as director with a film tittled. Jahiil, staring Amitabh Bachchan & Jaya Pradha and the film was to be written, produced & directed by Kader Khan with music by Kalyanji-Anandji and this film was to start after Coolie and Kader Khan had already made arrangements to start shooting, as Amitabh was to start shooting after completing the shooting of Coolie in Banglore, but then the. Coolie accident and. Jahiil was not made.
Parveen Babi abandoned the film midway. This was due to her following Rajneesh to his ashram.
Mehmood charged his brother Anwar Ali his full market price for the film.
Last film in which Sanjeev Kumar and Amitabh Bachchan acted together.
In Khud-Daar, Sanjeev Kumar was called Hari, which was his real name.