Shammi Kapoor wanted to play the role of Sanjeev Kumar .He had seen the film's English version in 60s .But when he directed the film he felt he was to old and caste Sanjeev Kumar.
Manoranjan is perhaps the only Hindi movie where prostitution was presented as a 'fun' .
Shammi Kapoor's directional debut.
First time Shammi Kapoor worked with Zeenat Aman.
Shammi Kapoor and Sanjeev Kumar worked together for second time after Sachai.