As Odisha and West Bengal are bracing for a severe cyclonic storm, governments of both states started evacuating people and while deciding to close educational institutions in vulnerable areas.
The Railway Protection Force found the bomb and the Bomb Disposal Squad has arrived at the station to deactivate the explosive.
The cancelled trains include Sealdah-Puri Duronto, Howrah-Chennai Mail, Kanyakumari-Howrah Express, Shalimar Express, Tirupati Weekly Superfast Express, SMVT-Bengaluru Superfast Express, Santraganchi AC Superfast, Purulia-Villupuram.
With Cyclone Phailin set to hit Odisha and Andhra Pradesh coasts on Saturday evening, rail, road and air traffic has been badly disrupted in the states.
The 'Premium Tatkal Ticket scheme' became operational in 80 trains from October 1 and is available only for online bookings.
The India Meteorological Department said rainfall would be accompanied by gale wind speed reaching 140 to 150 kmph and gusting to 165 kmph along and off Odisha and north Andhra Pradesh coasts.