CHENNAI: The Government Railway Police (GRP) launched a murder investigation after an unidentified male torso was found in a suitcase near platform no. 4 at Perambur railway station on Friday morning. The victim’s identity and the circumstances surrounding the crime are yet to be established.According to police, passersby noticed a blue suitcase abandoned near a staircase leading to platform no. 4 around 7.15am. They also detected a foul smell emanating from the suitcase and alerted the railway police.A team led by special sub-inspector Markabandu went to the spot, retrieved the suitcase and found the torso of a man inside.Investigators said the body was mutilated, with the head, arms and legs missing. Preliminary inquiries revealed that there was no significant blood leakage from the suitcase, leading police to suspect that the body had been dismembered elsewhere before being transported and abandoned at the railway station.The remains were sent to the Government Kilpauk Medical College Hospital for postmortem.Police have begun examining CCTV camera footage from Perambur railway station and surrounding areas to identify the suspect.Investigators are also reviewing missing persons complaints and coordinating with police stations across Chennai and neighbouring districts to establish the identity of the deceased. A case has been registered.