Raaj Kumar was originally signed for Nana Patekar's role.
Pooja Bhatt's voice was dubbed in a few scenes.
Filmaker Prakash Mehra was making a film tittled Kayaar with Jeetendra & Puru Rajkumar. When this film Hum Dono was released Prakash Mehra saw the film and he saw that incidently the story of Hum Dono & Kayaar is the same. Then Prakash Mehra decided to shelve Kayaar and had instead then started Bal-Brahamchari.
Divya Bharti was signed for the film but replaced by Pooja Bhatt after her death.
The film had a theatrical release in Canada.