The Class 6 student, Balaji Gouda (13), was near the boundary wall of Upgraded High School under Khallikote block when a function to mark the Teachers' Day was underway, they said.
School Head Master Kumuda Chandra Behera said the mishap took place when a sand-laden tractor hit the boundary wall, while entering into the school premises.
The vehicle entered the compound of the school through a different route without intimating the school authorities, he alleged.
A case of unnatural death has been registered and an investigation initiated into the matter, they said.
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