[3] The film begins in a royal dynasty where its heir Prince Ram Kumar quits owing to his father Raja Raghunath's high-handedness and low regard for the penniless.

After 20 years, ailing, Raja Saab entrusts to fetch Ram Kumar to a committee holding Birbal, Thakurain, and James equipping the proofs and dies.

Raja Saab also aspires to wedlock his Diwan‘s daughter Geeta to Ram Kumar who rears his little kid Munni.

Kumar-2 is Ravi, sibling of Kumar’s beau Komal and Kumar-3 is CBI officer Rajan assigned to find the fact.

Being cognizant of Rukmani's whereabouts the committee gives a call to her when crafty Murthy falsifies by showing endanger to Kumar and makes her affirm him as the real heir.

Finally, the movie ends on a happy note with the marriages of Ravi & Geeta and Ram Kumar & Komal.

Mehmood and Aruna Irani had made a successful comedy team in Aulad (1968), produced a year earlier.