A senior police officer said six died on the spot as the truck swerved to a side while driving at a high speed on the highway and mowed down those standing before the roadside stalls at around 9:15 pm.
The seven injured were taken by locals to Chittaranjan National Medical College Hospital in Park Circus area of the city and the condition of some of them was stated to be critical.
The driver of the truck is absconding, the officer said.
