According to the police the car was on its way from Vikas Nagar to Nerwa in Chopal subdivision of Shimla district when the accident took place.
The efforts to retrieve the bodies, which yet to be identified, are on, said the police.
The spot is located in deep inaccessible gorge. It was a local resident who was first to reach to the victims who were all dead, police said.
There was no eyewitness to the accident so far.
