Police had earlier said 25 persons were injured in the accident.
Chief Minister Nitish Kumar grieved the accident and has announced Rs 4 lakh compensation to the families of the deceased.
The compensation would be paid by disaster management department, the Chief Minister said in an official release and announced free treatment to the injured in the mishap.
Superintendent of Police Rural Lallan Mohan Prasad told PTI that the driver lost control which resulted in the bus falling in the ditch.
The injured have been admitted to hospital.
Irate villagers set the minibus on fire and blocked the Barh-Bihar Sharif road, Deputy Superintendent of police, Manoj Kumar Tiwari said.
(Reopen BOM38)
Meanwhile, deceased have been identified as Kanshiram (50), Hazarilal (50), Pavan (19), Khushi Bai (13), Ram Babu (18), Lal Singh (40), Shakeela (15), Mangilal (18), Rodsingh (12), Sangita (12) Ayodhya (12) and the identity of the last one is not yet known, a police official said.
