The incident took place in the afternoon near Pattharri village under Parpodi police station limits, Bemetara Superintendent of Police DK Garg told PTI, adding that the van was overcrowded.
"Four minor girls were killed in the accident while 33 others are injured. The driver of the van lost control when he reached a bridge at Pattharri and the overcorwded van fell into a ditch," Garg said.
Police said that the van had as many as 37 people, all relatives, and was proceeding to a family function from Kamkawada village to Bharatbathera village.
He said that a case had been registered and investigations were underway.