The passengers were on their way back to Mashobra after attending a marriage function when the accident occurred last night at a spot 16 km from Shimla.
The deceased were identified as Pratap and Guddi while the 11 injured persons have been admitted to IGMC Shimla.
Most of the occupants hailed from Mashobra in the outskirts of Shimla and adjoining villages.
Preliminary investigations found that accident took place as the driver lost control over the overloaded vehicle.
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