An 18-year-old girl sustained serious burn injuries on Tuesday when her lover set her on fire after a spat in Banda in Uttar Pradesh, police said.
Police official Tara Chandra said the girl has been admitted to the district hospital.
He said the parents of the girl are working as daily wagers in Mumbai and the victim was living with her sister in Banda.
The sister of the victim has told police that the boy was in a relationship with her sister and had got into an altercation just before the incident.
Livid over a trivial issue, the youngster set the girl on fire, and later apparently remorseful at his action tried to save her and burnt his hands. He then fled the crime scene.
Police said they were trying to arrest the culprit and were on a look out for him.
Doctors said the girl is in critical condition with over 70 per cent burns.