Chennai: Railway police have released CCTV images of a man and a woman who abandoned a decomposed and dismembered body of a man in a red suitcase inside the Tamil Nadu Express at Chennai Central railway station two weeks ago.The unidentified man’s decomposed and dismembered body was found inside an abandoned red suitcase in an unreserved coach of the Chennai-New Delhi Tamil Nadu Express after it reached Agra on Aug 5. The head and parts of the limbs were missing, prompting the Uttar Pradesh Government Railway Police (GRP) to register a case and seek assistance from their Tamil Nadu counterparts.Police said CCTV footage from Chennai Central showed a man and a woman, the latter wearing spectacles, entering the station with the red suitcase. The two were subsequently seen placing the suitcase inside a coach of the Tamil Nadu Express and getting off before the train departed.Investigators tracked their movements through CCTV cameras and found that the duo walked to Chennai Park railway station and boarded a suburban train towards Tambaram. Images released by police also show them travelling on the suburban train and later moving without the red suitcase.A senior railway police officer said the identities of the two have not yet been established. Investigators are examining footage from railway stations along the suburban route to trace their subsequent movements and identify them.The investigation gained momentum after Agra railway police recovered covers and receipts linked to a prominent textile store in Chennai from inside the suitcase. Tamil Nadu railway police have sought detailed case records, photographs of the deceased and other evidence collected by investigators in Agra to help establish the victim’s identity and reconstruct the sequence of events.Tamil Nadu and Agra railway police are jointly working to identify and trace the man and woman seen in the CCTV footage.