District and Sessions Judge Fatehdeep Singh yesterday sentenced Hoshiar Singh (22) to life imprisonment for setting Veerpal Kaur ablaze in October last year.
Singh wanted to marry the girl, but when she refused, he poured kerosene and set her on fire when she was alone at home.
Kaur, who suffered 80 per cent burn injuries, was rushed to a hospital, where she succumbed later.
In her statement to the police before she died, Kaur said that Singh wanted to marry her forcibly despite the fact that she was engaged to someone else.