Hum Dono (1961)

Mahesh Anand and Major Verma have a number of things in common. One: Both are in the army; both are from well-off families; and both look-alike. When Major Verma is missing, believed dead during a war, Mahesh is asked to convey this news to his family. Upon arrival, he is mistaken for Major Verma. He meets with Verma's mom, Mrs. Verma, as well as his ailing wife, Ruma. Unable to break the news of Verma's death and shatter their fragile world, Mahesh gets mistaken as Verma and is welcomed home. This creates complications in Mahesh's life as his sweetheart, Meeta, thinks that Mahesh no longer loves her. Then Ruma finds out that her husband is in love with another woman. Mahesh finds himself in a deep quandary, for he is unable to confide to anyone, and the only one who can assist him find his way back to his own life and family - is Major Verma.