The accident was reported to have taken place roughly after midnight last night at the accident-prone stretches of the NH 44 at Ratacherra area of the district, they said.
Addl deputy commissioner K Nongbri said Saurakh Chaudhury of Chaqtham village in Tripura's Khagaria district was killed in the accident.
The injured were admitted to the nearest hospital in the district for treatment.
NH 44 is also the only National Highway that links Tripura state capital Agartala with the rest of the seven NE states.