"A boy, wearing school uniform, was mowed down by a DTC bus while he was crossing the road in Khanpur area at around 11 AM. Following the incident, residents staged a protest and set the bus ablaze and also vandalised 12 others, evoking tension in the area," a senior officer said.
A large number of police personnel have been deployed in the area to maintain calm.
The body has been sent to AIIMS for post mortem, he said.