Ahsan Habib Bidduit, 16, son of Md Anowar Hossein of village Kola, was a student of class X at Balubhora High School.
Family members said Bidduit went out of house after getting a phone call. But, he did not return home at night.
Local people found his body at a paddy field on Friday morning and informed police about the matter.
Police recovered the body and sent it to Naogaon Sadar Hospital morgue for a post-mortem examination. A case was filled with Badalgachhi police station.
Officer-in-Charge of the police station Shahinur Rahman said he might have been killed sometimes on Thursday night.
Motive behind the killing could not be known immediately, said the OC.