After unfurling of the Tricolour, the students were distributed with some sweets by the school authority. Soon after consuming the sweets, some students complained of nausea, the police said adding the parents of the sick students brought them to Soro hospital.
The Chief District Medical Officer of Balasore Dr Anup Ghose said, "150 students were treated because of some kind of food contamination and the situation is under control."
"Four students were refereed to Balasore district head hospital as their condition was serious and a medical team has been sent to the school," he said.
