Initial reports suggested that a rumour about electric current leaking into the rainwater accumulated in the school compound triggered a stampede. However, victims told police that the incident took place while they were trying to make their way up and down a staircase.
Some alleged that boys who had come to the school to give their examination tried to molest them which resulted in the accident.
The probe was ordered to establish the reasons behind the stampede and fixing responsibility of the officials at fault.
The school will reopen Sep 29.