While 11 people died instantly in Mandi area after the disaster, three critically injured passengers succumbed to their injuries in a hospital.
Three other seriously injured passengers have been flown to Jammu College Hospital for specialized treatment.
The accident reportedly occurred when the driver lost control over the bus. Senior officials rushed to Mandi to supervise relief and rescue operations.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)