Hum Kisise Kum Naheen

A wealthy man sells his African estate and converts it into diamonds, which he keeps hidden in a belt. He boards a flight to India and, in the washroom, dies from a heart attack. Before dying, he entrusts the belt and its diamonds to a fellow passenger named Kishorilal to deliver to his son Rajesh in Delhi.

Kishorilal, the co-passenger, becomes the bearer of the belt and heads to Delhi with the diamonds. He is pursued by goons and hides in a cycle shed on arrival, slipping the belt into a bicycle toolbox. He escapes the immediate danger but the belt remains hidden in plain sight.

In Delhi, Sanjay Kumar, an entertainer at Ashoka Hotel, unknowingly rides off on a bicycle that has the belt hidden in its toolbox. He has no idea the diamonds are concealed inside. The bike becomes the moving repository of the fortune and the bait for the ensuing schemes.

Saudagar Singh and Baljit Kumar Dana hatch a plan to recover the diamonds by spreading a false story that Kishorilal kidnapped their son, Ramesh. They aim to lure Rajesh into a scheme that will force Kishorilal to reveal the belt’s whereabouts. Their plotted ruse initiates the diamond chase.

Believing the kidnapping tale, Rajesh crafts a plan to abduct Kishorilal’s daughter Kajal to extract the diamonds back. He pretends to be in love with her to gain her trust, which escalates the danger and stakes for everyone involved. The plot quickly becomes a tangled web of deception.

Sanjay becomes Manjeet’s manager and pretends to fall in love with Kajal, while Kajal loves her childhood friend Sanjay. This creates a complicated triangle that intertwines romance with the pursuit of diamonds. Meetings between Rajesh and Kajal intensify the emotional conflict.

Rajesh and Kajal meet several times, deepening their connection even as the diamond plot tightens around them. Sanjay’s genuine feelings for Kajal come into conflict with the schemes spiraling around Kishorilal’s belt. The stage is set for multiple confrontations.

Saudagar uses Manjeet to bring Kajal along with the diamonds, tightening his grip on the loot. Kajal remains unaware of the full danger while Rajesh and Sanjay try to counter the scheme. The plan culminates in a perilous standoff involving Kajal.

Rajesh and Sanjay intervene and rescue Kajal from Saudagar’s trap. They manage to escape with Kajal, though the diamonds remain a looming threat. The trio must navigate a growing web of deceit while keeping Kajal safe.

A fierce battle erupts at the country border as Saudagar’s daicots close in. In the chaos, Sanjay is shot by Saudagar, injuring him and threatening Kajal’s safety. The confrontation marks the highest point of danger in the pursuit of the diamonds.

Even after being wounded, Sanjay survives long enough to confront Saudagar and shoots him dead before the police intervene. Kajal is saved, and the immediate diamond threat is resolved through force. The rivals are defeated and law enforcement closes in.

With the danger behind them, Sanjay and Kajal become a couple. Rajesh also ends up with his former love, who had fled her own wedding to be with him. The film closes on a note of revived romances and a sense of closure beyond the diamonds.