After finding messages on the pillar of a flyover in Uran on Tuesday, firecrackers with electric wires and batteries accompanied by a letter were found in the coach of the Shalimar Express on Wednesday morning. According to the police, the handwritten letter reads 'let's teach the BJP government a lesson'.

After a preliminary inquiry, the investigation has been handed over to Tilak Nagar police station. Initially, agencies were baffled as they were told that gelatin sticks had been found, but after through checks it was revealed that the sticks were hollow firecracker tubes.