Directed by

Nasir Hussain
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Read the complete plot summary and ending explained for Hum Kisise Kum Naheen (1977). From turning points to emotional moments, uncover what really happened and why it matters.
The film opens with a wealthy man liquidating his African estate and turning the proceeds into diamonds, which he keeps in a belt as he boards a flight to India. In a tragic turn, he suffers a fatal heart attack in the washroom and, in his last moments, entrusts a fellow passenger with delivering the belt to his son, Rajesh, who works as a singer-dancer-entertainer at the Ashoka Hotel in Delhi. The fortunate companion turns out to be a wealthy businessman, Kishorilal, a man whose luck and wealth have grown in the years since.
Flashbacks reveal how, years earlier, Kajal’s father Kishorilal found himself in dire financial straits and was sheltered by Sanjay’s father, a bond that eventually left Kishorilal with immense wealth. The long-promised marriage between Sanjay and Kajal seemed secure at first, but that promise falls apart when Kishorilal insults them and forgets the arrangement born from that old favor.
Soon after, Kishorilal comes under the relentless pursuit of goons who are after the diamond belt. He narrowly escapes and heads to Delhi, only to realize the danger is waiting for him at the airport. Fleeing, he slips into a cycle shed and hides the belt inside the toolbox of a bicycle, vanishing from sight. The bicycle, owned by Sanjay Kumar, becomes the vehicle for a dangerous misdirection, as Sanjay wheels away unaware that his cycle contains 25 crore rupees in diamonds. The pursuers, led by the scheming Saudagar Singh, are determined to recover the loot.
With Kishorilal out of reach, Saudagar Singh and his partner Baljit Kumar Dana devise a trap for Rajesh, spinning a false tale that Kishorilal has kidnapped Saudagar Singh’s son, Ramesh. Believing the story, Rajesh hatches a reckless plan to abduct Kajal under the pretense of love, hoping to force Kishorilal to surrender the diamonds. Meanwhile, Sanjay Kumar steps into a managerial role for a woman named Manjeet and stages a romantic ruse with Kajal, who actually harbors love for her childhood friend. The paths of love and deceit cross in a series of meetings between Rajesh and Kajal, while the web of lies grows thicker.
As the plot thickens, Saudagar uses Manjeet to harvest the diamonds, bringing Kajal along to seal the deal. Kajal is ultimately rescued by Rajesh and Sanjay, and the trio escapes together. A climactic confrontation at the country’s border ensues, and in the skirmish, Sanjay is wounded by Saudagar. After threatening Kajal, Sanjay survives the ordeal and, seizing the moment, shoots Saudagar dead before the police can intervene. In the aftermath, Sanjay and Kajal begin a new life together, while Rajesh finds happiness with his former fiancée, who had run away from her own wedding to be with him.
Follow the complete movie timeline of Hum Kisise Kum Naheen (1977) with every major event in chronological order. Great for understanding complex plots and story progression.
A life ends and a belt of diamonds begins its journey
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 carries the belt to Delhi and hides it
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.
Unaware rider: the belt finds a new vehicle
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 set a trap
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.
Rajesh schemes to extort diamonds through Kajal
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 enters the intrigue as a manager
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.
Romance and rival plans collide
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.
Manjeet aids Saudagar to seize Kajal and diamonds
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.
Rescue and escape with 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.
Showdown at the border
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.
Sanjay’s revenge and Saudagar falls
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.
Romance and new alliances after the crisis
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.
Explore all characters from Hum Kisise Kum Naheen (1977). Get detailed profiles with their roles, arcs, and key relationships explained.
Rajesh (Rishi Kapoor)
Rajesh works at Ashoka Hotel as a singer-dancer-entertainer and is quick with schemes to recover the diamonds. He uses wit and charm to navigate the dangerous chase, playing both sides of the game. His actions drive much of the plot’s deception, yet he ends up forming a bond with Kajal and pursuing his own version of happiness.
Kajal (Kaajal Kiran)
Kajal is Kishorilal's daughter who loves her childhood sweetheart Sanjay. Caught between criminals and lovers, she faces manipulation but remains a central figure whose choices steer the course of the diamond caper. Her resilience and feelings shape the film's emotional core.
Seth Kishorilal (Kamal Kapoor)
Kishorilal is Kajal's father who once helped Sanjay's family but falls on hard times. His wealth becomes a target for the diamond thieves, prompting him to flee and hide the belt. His pride and past promises drive much of the conflict.
Saudagar Singh (Amjad Khan)
The mastermind behind the diamond pursuit, Saudagar Singh uses a crisscross of schemes and deceit to recover the diamonds. He commands goons and manipulates others, becoming the central antagonist. His plan collides with the protagonists in a climactic showdown.
Sanjay Kumar (Tariq)
Sanjay is Kajal's childhood love who becomes involved with the diamonds and the schemes. He publicly pretends to fall for Kajal while secretly assisting Rajesh and planning his own escape from the web of deceit. His loyalty shifts as the truth unfolds and alliances form.
Learn where and when Hum Kisise Kum Naheen (1977) takes place. Explore the film’s settings, era, and how they shape the narrative.
Time period
1970s
The plot unfolds in a contemporary 1970s Indian milieu, mixing glamour, music, and urban intrigue. Delhi serves as the central stage for romantic schemes, family tensions, and a diamond-heist thriller. Fashion, nightlife, and melodrama define the tone, aligning with Bollywood's caper comedies of the era. The pacing leans into spectacle and colorful plotting typical of that period.
Location
Africa, Delhi
The story begins in Africa, where a wealthy man converts his estate into diamonds and travels to India with a precious belt. The action then shifts to Delhi, home to Rajesh and the diamond chase, seen against bustling streets and the nightlife around Ashoka Hotel. The contrasts between exotic Africa and the crowded Indian capital drive the film's energy and suspense. The setting blends opulence, crime, and performance culture characteristic of the era.
Discover the main themes in Hum Kisise Kum Naheen (1977). Analyze the deeper meanings, emotional layers, and social commentary behind the film.
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Crime & Deception
Diamonds become the plot's fulcrum as a belt hides the diamonds and a network of goons pursues it. Characters weave lies and traps to gain control of the hoard, with double crossings shaping every move. The pursuit blends greed with cunning, showing how trust is easily weaponized. The climax exposes the fragility of deceit and the consequences for those entangled in crime.
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Love & Intrigue
Kajal's affection collides with schemes as Rajesh and Sanjay each pursue her, weakening loyalties and forcing difficult choices. Romantic fronts are used as cover for manipulation, making love a risky tool in the diamond game. The relationships shift as truth surfaces, leading to surprising pairings. The story uses romance to heighten tension and complicate loyalties.
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Loyalty & Conflict
Family ties and old favors motivate characters to risk danger for promised alliances. Kishorilal's past help to Sanjay's father and the later betrayal create a cycle of debt and revenge. Trust is tested as friends align with rivals to outmaneuver the criminals. Ultimately, loyalty emerges through the heroes' teamwork to rescue Kajal and defeat Saudagar Singh.

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Discover the spoiler-free summary of Hum Kisise Kum Naheen (1977). Get a concise overview without any spoilers.
In the glittering milieu of Delhi’s high society, a young heiress finds herself caught between duty and desire. Kajal is the daughter of a powerful industrialist, and her world is one of lavish gatherings, elegant hotels, and the weight of family expectations. Ever since childhood she has nurtured a promise of marriage with her longtime friend, Sanjay, a bond forged long before the trappings of wealth took hold. Their shared past glimmers like a forgotten lullaby, urging her toward a future that feels both inevitable and fragile.
The arrival of a charismatic newcomer adds a fresh ripple to the carefully balanced waters of her life. He introduces himself as Manjeet Kumar Tana, a smooth‑talking manager whose confidence and charm create a magnetic pull. Kajal is intrigued, yet she remains anchored to the memory of Sanjay and the promise they made. The atmosphere of the film swirls with the elegance of upscale venues, the hum of whispered conversations, and a playful tension that suggests more lies beneath the polished surface.
Complications arise when the real Manjeet steps into the picture, revealing that the charming stranger was not who he seemed. The revelation forces Kajal to reevaluate the faces around her, especially when she discovers that the handsome pretender’s true name is Rajesh. Beneath the gleam of polite society, identities shift and motives blur, hinting at a web of intrigue that tests loyalty and love alike.
Amidst this backdrop of glimmering opulence and subtle deception, the film dwells on the emotional currents that drive its characters. Kajal stands at a crossroads, torn between a cherished past with Sanjay and the beguiling allure of newfound possibilities. The tone balances light‑hearted romance with an undercurrent of mystery, inviting the audience to wonder how far the heart will go when promises, pretenses, and true intentions intersect.
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