The BMC on Wednesday received emails allegedly containing references to Khalistan “warning” of explosions at multiple locations in Mumbai, including the Chief Minister’s Office (CMO) and the mayor’s office, officials said. The emails, sent to several official email IDs of the civic corporation, prompted security agencies to launch an investigation.

According to officials, the emails allegedly mentioned “Khalistan National Army” and included inflammatory and threatening content targeting various organisations and institutions. Senior civic and security officials and the Mumbai Police were subsequently alerted.