Railway officials said that nearly 24 signals on all six lines including 5th and 6th lines that used for long distance trains operation. A fire in Kanjurmarg station’s signalling relay room around 9:33 am caused signals between Vikhroli and Bhandup to go blank. A fire in a relay room at Kanjurmarg and a foreign wire on the overhead equipment between Mulund and Thane caused significant disruptions to Mumbai's Central Railway suburban services.