The incident took place in the morning at Sidharpur village in the Bangarmau area of the district, they said. The double-decker bus, carrying around 80-85 passengers, was going to Bihar from Jaipur when the driver lost control. It overturned Sub-Divisional Magistrate, Bangarmau, Ankit Shukla said. Two people died on the spot; another succumbed in the district hospital. One of the deceased was identified as Rakesh Thakur (35), a resident of Bihar's Siwan district; Shukla said efforts are on to ascertain the identities of the other two victims.