New Delhi, Oct. 29 -- The Railway Board has reiterated its instructions to switch off electricity supply to power sockets in train between 11pm and 5am after a passenger's power bank exploded while charging aboard the Mumbai-Howrah Mail in Odisha on October 24, disrupting operations. In an October 26 letter, the Railway Board directed all zonal railways to ensure strict compliance with existing instructions on switching off mobile charging points during night hours. htc...