"The incident took place when the car rammed into the van which was trying to overtake a truck late last night," Senior Superintendent of Police Rajesh Kumar Pandey said.
Yogendra Tiwari (37), his wife Ruchi (30), their children Annu(11) and Ria (5) and Anupam Singh (30), Sanjay Singh 28) and Ishtiquhar (32) were killed in the accident.
The injured were rushed to a hospital, where their condition is stated to be stable, police said.