Abhishek (12) was found dead in suspicious circumstances inside a sugarcane field with his hands and feet tied with ropes, they said.
The boy was reported missing since he had gone to the fields in the morning, police said.
Police have detained an accused, Yakub, in the case.
Additional police force was deployed in the village in view of tension with District Magistrate Kinjal Singh and Superintendent of Police (SP) Arvind Sen Yadav also reaching there to handle the situation.