Police said the investigation into the case had also been shifted to the CID police here.
Teams of Central Intelligence Bureau and the Bomb Disposal Squad from Chennai today held discussions with the Superintendent of Police of Puducherry Ramaraju and also railway police authorities.
The suitcase was found abandoned in an unreserved compartment of the Dadar-Puducherry Chalukya Express train yesterday. The person who had left it in the compartment is yet to be traced.
Routine procedural modalities were adopted in disposing of the object and cases were registered, police said.
Police had yesterday said it was only a hoax to trigger a scare.
