New Delhi/Mumbai, Oct. 28 -- A network failure at Mumbai's Chhatrapati Shivaji Maharaj International Airport (CSMIA) on Tuesday evening forced the airport and airlines to process passengers by hand at one of the busiest times of the day, as nearly half the flights due out between 7pm and 9pm left an hour or more late, with some by over two hours. Of the 44 passenger flights scheduled to leave in that window, 18 took off an hour or more late and three were cancelled, according to Flightradar24 data analysed by HT. Two more were still on the ground at 10.37pm, nearly two hours after their scheduled departure. The problem began at around 7.05pm, and all processes were switched to manual mode as laid down in protocol, airport officials said. Ch...