A vegetable-laden truck, coming from Barpeta Road side to Dumani Bazar, turned turtle when it tried to overtake the tempo coming from Baghmara to Pathsala.
While one died on the spot, three others succumbed to injuries at Pathsala Hospital, SDPO, Bajali David R. Neigete said.
Of the 12 injured, eight of them were in serious condition and got admitted to Barpeta Medical College Hospital, while one was sent to Gauhati Medical College Hospital, Neigete said.