Mannan

Shanthi Devi, owner and CEO of Devi Industries in Madras, is introduced as the number one young industrialist in India. She rules her company with an iron fist and lives with her father Viswanathan and their loyal maid Kannamma. The summary notes she is rich and powerful, but emotionally distant after her mother's death twenty years earlier.

Krishnan, a kind-hearted mechanic from Bombay, returns to Madras to care for his paralysed mother. He quits his job in Bombay to stay with her, seeking a fresh start in the city. This decision sets the stage for his later involvement with Devi Industries.

Krishnan and Shanthi Devi meet at the airport, and their first encounter ends on a bitter note. The clash hints at the personal and professional power struggle to come. It foreshadows the complicated relationship that will develop between them.

Viswanathan is attacked by thugs on the way to a meeting. Krishnan intervenes, saves him, and takes him to a hospital. There, Krishnan learns that Viswanathan is the very businessman he was going to meet.

Krishnan goes to the Devi Industries factory and is initially refused employment by Shanthi Devi. Under her father's pressure, she finally hires him as a senior mechanic to appease the family and avoid conflict.

Krishnan befriends Meena, Shanthi Devi's secretary, who is warm and sympathetic and quickly falls for him. Meena's kindness contrasts with Shanthi Devi's hard stance, providing a softer counterpoint in the story. Their bond adds a personal angle to the corporate drama.

Krishnan rescues Shanthi Devi from a collapsing structure, earning her respect. She slaps him after the incident, and he retaliates in private by slapping her back. The episode leads to his promotion to Section Chief Mechanic.

Krishnan is elected union leader, defeating the office staff candidate backed by Shanthi Devi. Their ideological clash fuels ongoing friction at the workplace and deepens the power struggle between them.

Meena announces her plan to marry Krishnan, prompting Shanthi Devi to pursue revenge by marrying him herself. She convinces Krishnan's mother to support the match, and Krishnan agrees, hoping to honor his mother. The arrangement heightens tensions between personal and professional loyalties.

Krishnan marries under pressure but continues to lead the union and remain an active force at Devi Industries. Shanthi Devi's strategy to control him backfires as his influence endures. The marriage deepens the personal stakes of the corporate struggle.

Shanthi Devi changes a company policy that triggers a workers' strike led by Krishnan. In response, Viswanathan steps in to take over as chairman, signaling a shift in control of the company. The conflict exposes fault lines between management and labor.

Krishnan's mother dies of guilt after learning of the troubled relationship between Shanthi Devi and Krishnan. A rival, Sathish, makes an assassination attempt on Shanthi Devi, but Krishnan kills him and saves her. The incident becomes a turning point, forcing Shanthi Devi to confront her misjudgments.

Meena is appointed the new CEO, signaling a fresh era for the company, while Shanthi Devi becomes a housewife. The two women embody contrasting paths for Devi Industries, and Krishnan's journey concludes with a new balance between love, labor, and leadership.