Mazboor (1974)

Vijay (Amitabh Bachchan), who lives happily with his mother, his handicapped sister and his brother, becomes unwittingly involved in a murder and discovers that someone witnessed the crime. When Vijay learns he has a fatal brain tumor, he decides to take responsibility for the murder and makes a lucrative deal with the witness so he can leave money to his family. But when a doctor declares Vijay can be cured by an operation, what will he do?