Kendrapada: A 13-year-old girl died after collapsing inside her classroom at Kamala Model Girls’ High School in Ayatan village under Rajkanika police station limits in Kendrapada district on Monday. While the exact cause of death is yet to be ascertained, school authorities said the girl suffered a cardiac arrest.The deceased, Bishwarupa Behera of Mahadeadia village, was a Class VIII student. She reached school around 10 am and collapsed shortly afterwards. Teachers attempted to revive her. School staff took Bishwarupa to the community health centre at Rajkanika, where doctors declared her dead. Police subsequently sent the body to the district headquarters hospital in Kendrapara for post-mortem. “The exact cause of death is still unknown. We will know the cause after receiving the autopsy report,” said medical officer Rachita Mishra.School headmistress Shardhanjali Rout said she was teaching science in the classroom when Bishwarupa collapsed. “We immediately informed her parents and called an ambulance to take her to hospital,” she said.The girl’s parents and other relatives, however, questioned the emergency response and alleged that timely cardiopulmonary resuscitation (CPR) was not provided. “The school authorities did not immediately take her to hospital and instead informed us about her condition,” alleged the girl’s mother, Sushree Sangita Behera.The family also urged authorities to examine CCTV footage from the school to establish what happened before Bishwarupa collapsed. The headmistress has lodged an FIR in connection with the incident. IIC, Rajkanika police station, Sanjay Kumar Mallick, said police rushed to the school and started an investigation.