Trouble broke out in Darghas village near Tambaram on Monday morning when a private college bus hit a woman.
Punitha (40) wife of Nallathambi, a former vice president of Erumaiyur village panchayat, was waiting at the bus stop. A bus belonging to Dhanalakshmi College of Engineering in Naduveerappattu, was proceeding on the extreme right side of the road.
The driver noticed a bus belonging to another private institution coming in the opposite direction and swerved the vehicle to the left.
Punitha was hit and sustained injuries. She was admitted to a private hospital in Tambaram, where she is receiving treatment.
Angry over the failure of the police to keep a check on speeding vehicles and rash driving, residents threw stones on the college bus. They then staged a road roko, preventing the movement of vehicles on the Tambaram–Somangalam Road. After receiving an assurance from senior policemen of Sriperumbudur circle, however, the residents dispersed.
The driver of the bus fled the spot, the police said.
The residents have appealed to the police to initiate measures to keep a check on speeding and rash driving by private buses and lorries. In June this year, a speeding lorry knocked down a child near the same spot and the vehicle was set on fire by irate residents.