Two others died later from their injuries, he said.
He added that 140 people involved in the incident had been rushed to hospital and district health centres, but that many had already been discharged.
"Doctors say that only three of them are in critical condition but they are getting better," he said.
According to the mayor, a similar accident took place on Friday when lightning struck a group of 18 students, killing one of them.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)