The incident occurred yesterday when the vehicle was on its way to Doda from Bhaderwah, a police officer said.
The driver lost control of the car near Dalyia village main road and it rolled down a 100-ft deep gorge, the officer said.
Two persons died on the spot, while one seriously injured was shifted to the Government Medical College (GMC) Hospital in Jammu, where he succumbed to his injuries this morning, he said.
