Mammo is a nickname given to Mehmooda Begum by her sisters. She marries a man from Lahore. After Partition, she and her husband automatically become Pakistan citizens. Although childless, her marriage is a happy one until her husband's death. Over property matters, Mammo is thrown out of the house by her relatives. She comes to India to stay with her only kin, her two sisters. Unable to extend her visa, she has to go back – political priorities defeat humanitarian ones!