The driver lost control over a sand bed and the bus flipped over.
The driver of a schoolbus was speeding this morning when he skidded over a sand bed, and the bus flipped over. 65 children were on board; three had minor injuries, said officials.
The children, between the ages of seven and 15, are from a private school in Perambalur, around 300 kms from the state capital of Chennai.
In keeping with Supreme Court laws, two staff members from the school were accompanying them on the bus.
The driver has been arrested on charges of rash and negligent driving.
"Three students suffered minor injuries and one is suspected to have suffered a fracture," said senior police officer Sonal Chandran