"Mumbai Crime Branch's CIU (Crime Intelligence Unit) has detained two people. They are being questioned in connection with the hoax phone call, received by the Police last night, that mentioned the presence of bombs at four different locations across Mumbai," said Police.
Earlier the police said that they were trying to trace the location and identity of the caller.
"Police Control Room received a phone call last night, threatening that bombs have been placed at four locations across Mumbai. They said the bombs have been placed at Chhatrapati Shivaji Maharaj Terminus (CSMT), Dadar, and Byculla railway stations, as well as at the residence of actor Amitabh Bachchan," police said.
Mumbai Police, along with Railway police and bomb squad conducted searches in and around all four locations but no suspicious object was found.
"In the probe, it was found to be a hoax call," added the statement.