Two brothers allegedly assaulted and stabbed a 21-year-old man and knifed his father to death after the man objected to their throwing a lighted firecracker at him on Diwali night in Rajkot, police said.

The man, who is the driver of a school van, suffered serious injuries and is fighting for his life in a private hospital in Rajkot.

According to the FIR, late on November 8 evening, the man and his father had an altercation with the brothers who were bursting firecrackers on a public road.

A few hours later, early on Monday, the brothers showed up at the man’s home, and a second altercation ensued. The man was allegedly assaulted, and his father was battered on the head with a log of wood and repeatedly stabbed.

“The murder took place at Marutinandan Society on Mavdi main road. A young man was returning home after buying medicines when he was struck by a firecracker. He and his father chastised them (the men who were bursting the crackers), which led to an argument.…