The suspect, identified as Maje Lawan, is believed to be number 96 on the list of wanted terrorists earlier published by the Army, reports Xinhua news agency.
Army spokesman Texas Chukwu said the suspect was nabbed by troops in Banki neighbourhood of the northeastern state of Borno.
He was apprehended after he infiltrated an internally displaced persons' camp in Banki, according to Chukwu.
"The suspect is currently undergoing preliminary investigation and will be handed over to the appropriate authority for further action," he said.
Nigeria has made considerable gains against the terror group, dislodging its fighters from the Sambisa Forest.
Boko Haram has been blamed for the death of more than 20,000 people and displacement of 2.3 million others in Nigeria since 2009.
(This story has not been edited by Social News XYZ staff and is auto-generated from a syndicated feed.)
