The incident took place near Shamlaji RTO office in Venpur village of Shamlaji taluka around 5.30 pm, Police Sub Inspector Ranjitsinh Pujavat of Shamlaji told PTI.
"Ten persons, including a boy, aged around ten years, were killed on the spot and one person sustained grave injuries, when the jeep carrying them rammed into a tanker," Pujavat said.
The accident took place when the driver of the jeep tried to overtake a truck, but lost control over the vehicle, he added.
"We are trying to establish the identity of the victims," he said.
While the bodies were sent for postmortem, the injured was rushed to a nearby government hospital.