The protest started at 6 am on Tuesday with the blockade of the old National Highway 6, which connects Kolkata to Mumbai, at Khemasuli in Kharagpur Local police station area by Kudmi Samaj West Bengal, they said.
The guard of a goods train had told the Railway Control Room that he had heard an 'explosion-like sound' when the train was between Gidni and Jhargram stations following which the railways suspended services. An Railway Protection Force party along with bomb squad personnel travelled to the spot to ascertain whether any explosion had occurred but found no such thing, sources said.
Train services on the Kharagpur-Tatanagar section of South Eastern Railway resumed on Sunday after restoration of both the railway tracks which was obstructed due to derailment of Jnaneswari Express.