Chalte Chalte (1976)

Geeta and Anil meet, gets acquainted with each other only to fall in love; they then get married but on their wedding night Anil is killed by bandits leaving a devastated Geeta who goes unconscious for a period of 4 days after which she loses her mental balance and is confined in a mental asylum. Several years later she does manage to recover, is discharged and enter into the real world only to find that Anil is still alive, now calls himself Ravi Kapoor and is in love with a young woman named Asha. The discovery of Anil triggers Geeta and she decides to make Ravi her own; eventually she gets out of hand and is re-confined in the mental asylum. A few days later she manages to escape, enters the couple's house and when Ravi is away she decides that she will settle scores once and for all with Asha - the one she believes is out to claim her husband.