

When Raja discovers his face is identical to a wealthy and successful doctor he manages to take his place, but soon he discovers that success is no guard against problems.
Acting
Rajesh Khanna's dual performance — subtle physical distinctions between Raja and Dr. Shekhar.
Score
R.D. Burman's earworm melodies that outlast the plot holes.
Costume
Hema Malini's ethereal sarees vs Reena Roy's working-girl chic.
Director
B.S. Glaad
Trivia, insights & behind the scenes
This was among Rajesh Khanna's final major hits before his commercial decline in the late 80s — his 'superstar' era winding down in double vision.
The 'twin swap' trope peaked in 80s Bollywood as urbanization anxiety — rural innocence infiltrating corrupt city spaces through literal body doubling.