Hum Dono

Anand pretends to be Major Verma to protect Ruma's health. When he visits the Verma family to deliver news of Verma's presumed death, Ruma's mother-in-law mistakes him for her son, and the family doctor warns that revealing the truth could harm Ruma due to her heart condition. To keep Ruma healthy and the family intact, Anand decides to live as Major Verma.

The family doctor's warning about Ruma's fragile health plants the seeds for Anand's decision to maintain the deception.

Mita leaves Anand because she suspects he's having an affair. She sees him at a temple with Ruma and, unaware of the true situation, wrongly concludes that Anand is romantically involved with Ruma. This misunderstanding drives a wedge between them, causing Mita to abandon their relationship.

Anand's increasing time spent at the Verma home while neglecting Mita builds tension that leads to this misunderstanding.

Major Verma returns alive because he survived the war despite being missing. He returns with a lost leg, having endured the physical trauma of war. His return is unexpected by everyone, including Anand, which creates the film's central conflict when Verma discovers Anand posing as him.

The telegram confirming Verma's disappearance specifically notes his family cannot trace him, implying uncertainty about his fate.

Ruma asks about children because she wants to understand why Anand (whom she believes is her husband) remains distant and uninterested in starting a family. This questioning reveals the strain in their marriage and highlights that Anand cannot truly act as a husband to her without revealing the deception.

Ruma's longing for children exposes the emotional distance that has grown between her and her supposed husband.

Anand tells Ruma the war changed him to explain his distant behavior without revealing the truth. He uses this explanation to justify why he doesn't want an heir, when in reality he cannot have a child with another man's wife while maintaining a deception. This line is a convenient cover for his true circumstances.

Anand's war experiences have already transformed him from a job-seeking young man into someone willing to sacrifice his own happiness for others.

Major Verma tries to kill Anand because he misreads the situation upon returning home. Finding another man living as him, Verma naturally assumes the worst, that Anand is impersonating him to take his wife and family. Verma's anger and shock lead to a violent confrontation on the street before the truth can be revealed.

The sudden return without warning creates maximum dramatic tension, preventing any opportunity for explanation beforehand.

At the temple, Anand asks Ruma if she would stay with him if he were handicapped, and she affirmatively replies she would not leave him. This reveals her loyalty, which makes the eventual truth more painful. Meanwhile, Major Verma and Mita listen in secret, setting the stage for the final revelation where both couples reconcile.

Ruma's vow becomes ironic once the real Verma reveals himself and she chooses him over the man she thought was her husband.

Anand joins the army because he's insulted by Mita's father, who rejects him for being unemployed and irresponsible. Spotted an army recruitment poster, Anand decides to enlist to prove himself and gain employment. Despite his mother's objections, this decision changes the course of his life and leads him to Major Verma.

Mita's father's harsh rejection sets Anand on the path that eventually brings him to the Verma family.

Mita stays close to Anand's mother after Anand enlists by visiting his home regularly and caring for his mother while he's at war. This demonstrates her devotion to Anand despite his absence. However, when Anand returns and spends all his time at the Verma home, Mita feels abandoned and betrayed.

Mita's loyalty to Anand's mother makes her eventual departure even more painful for Anand.

Anand returns home as a promoted captain because of his brave actions during the Burma campaign. His promotion brings him back to India, where he discovers his mother has died during his absence. This return marks the beginning of his involvement with the Verma family.

The promotion that brings Anand home is directly tied to his friendship with Major Verma in the war.