Manmohan Singh, who ran a herbal medicine clinic at Haroon Chowk in Shakrial, went missing on January 3 and his father lodged a case with Sadiqabad police the same day.
Police said he was kidnapped while on his way to the clinic on January 3.
Taking clue from the victim�s telephone record, the police on Friday raided a house in Wazeer Colony on the outskirts of Gulzar-e-Quaid area and arrested a suspect, named Waheed.
The case�s investigation officer Mehar Mumtaz told�The Express Tribune�on Saturday that the suspect during the interrogation confessed to murdering Singh in his house.
Police said that the suspect invited Manmohan Singh to his house and offered him a contaminated drink due to which Singh fell unconscious. The suspect then dragged Singh into the washroom, chopped him with an axe and a dagger and threw the body pieces into a nearby nullah.
The police official said that they had recovered six body pieces from the nullah and also confiscated a dagger, an axe, and some other tools from the suspect�s house.
The suspect told the police that he had some �personal issues� with the victim, the investigation officer said.
Mumtaz said that investigation was under way and the mystery would be solved soon.