A class nine girl student, studying in a private school in Deoria of Uttar Pradesh, died on Monday after falling off the third storey of the school building, police said.
Neetu Chauhan, 16, was found lying on the ground of the Modern City Montessori School in a critical condition.
She had gone to toilet, located on the third floor, and her classroom was on the first floor, students said.
The girl was rushed to a nearby medical facility but she succumbed on the way.
Parents of the girl have lodged a police complaint alleging that she was thrown off the third floor.
After autopsy, the body has been handed over to the family, Senior Superintendent of Police Malhotra said.
The school management has locked down the school and gone untraceable.
Police said the mobile phone of school’s Principal Adya Tiwari was switched off since the incident.
An FIR, the police official said, would be lodged on Tuesday and a probe initiated.