India, Sept. 16 -- Two people were arrested in Bihar and Jharkhand in connection with an inter-state network involved in sending bomb threat emails, police said on Tuesday.

As many as 5,13,847 email IDs and passwords were found on the devices of one of the accused, a senior police official said.

The investigation commenced after the Gujarat Secretariat received a bomb threat email on September 10.

Technical analysis of the email communication and other digital trails led the Gujarat Police Cyber Centre of Excellence (CCoE) to Bhagalpur in Bihar and Deoghar in Jharkhand, said Gujarat Police (CCoE) officials.

The accused were identified as Roushan Kumar of Bhagalpur and Gulshan Kumar Singh of Deoghar. A device used by Kumar to operate t...