AGRA/LUCKNOW, Aug. 6 -- The mutilated and partially decomposed human remains were recovered from an unattended trolley bag inside the general coach of the Chennai-New Delhi Tamil Nadu Express after the train arrived at Agra Cantt railway station early on Wednesday, triggering a multi-state investigation by the Government Railway Police (GRP) and the Railway Protection Force (RPF). According to GRP officials, the discovery was made after a passenger noticed blood seeping from a trolley bag lying unattended in the general compartment. Deputy SP, GRP, Rajesh Dixit, said the control room received the information in the early hours of Wednesday while the train had already crossed Gwalior and was approaching Agra Cantt. "The caller informed us that a trolley bag lying unclaimed in the general coach was leaking blood and emitting a foul smell. Since the train had already left Gwalior, the information was relayed to the GRP and RPF teams at Agra Cantt," Dixit said. When the train reached Platform No. 3 at around 5.30 am, GRP and RPF personnel entered the coach and opened the bag. "Inside, we found decomposed human body parts, including a severed hand and a portion of the torso. The remains had turned black due to decomposition," the officer said....