The incident took place last night at Pannaha village in Gauri Bazar area, where a large number of people had gathered for 'Devi Puja' and a speeding car lost control and hit them, they said.
While six persons, including two women died on the spot, 12 others were injured. The injured were rushed to a hospital, where their condition was stated to be stable.
The vehicle has been impounded and one person arrested in connection with the case.