A bomb threat at Mumbai's Chhatrapati Shivaji Maharaj Terminus (CSMT) railway station on Saturday evening triggered a joint security operation involving the Railway Protection Force (RPF), Government Railway Police (GRP), Mumbai Police and other security agencies.

According to railway authorities, the GRP Control Room at Wadi Bunder received information at around 6.40 pm on November 14 that an unidentified person had made a phone call claiming that a bomb had been planted at CSMT.