An official of the Eastern Railway said that they had cut off power supply in the building from around 6pm. But the silver lining was that till late on Monday there was no damage to the servers and the fire had not spread to the rooms where the servers are installed.
The official, however, could not give a time by which the online booking could resume. Whenever the booking begins, the speed could be very slow, the official warned.
According to officials of the Eastern Railways, the signal and telecom department construction office on the 13th floor had caught fire that later spread across the floor and to the floor below.