20-year-old Kush Noor, sprinkled petrol on her body and set herself ablaze at Zanana Park in Jammu city, but soon a youth, with whom she was allegedly having an affair, came and rescued her, police said.
The girl received 80 per cent burn injuries while her friend received minor burns, police said.
Both have been admitted at GMC hospital for treatment, they said.
Investigations are on to ascertain the reason behind the incident, police said.