He was rescued on Wednesday, October 12 by operatives of the Kaduna State Police Command.
The man was found naked and locked up in a room at a house located on Bayajidda road in Kaduna, according to News Agency of Nigeria (NAN).
Residents of the building fled when a police team arrived the house.
The Police Public Relations Officer in Kaduna State, DSP Mohammed Jalige told the medium that a thorough investigation would be conducted on the matter.
Jalige said that the victim, Ibrahim Ado, was first discovered by some environmental health officers who were in the house on official duty.
They reported to the Magajin Gari Police Division and the Commissioner of Police directed personnel to evacuate the victim.
He also directed full scale investigation of the matter to unravel the circumstances surrounding the issue and why the man was kept in isolation for this long,” he added.
Jalige said that the victim had been taken to hospital for medical evaluation