NEW DELHI: The Delhi Metro helped its passengers cumulatively save a mammoth 269 million hours of travel time last year, the Delhi Metro Rail Corporation (DMRC) said Tuesday. According to a study conducted by The Energy Research Institute (TERI), the annual time saved by passengers was “more than double to 572.5 million hours in 2031”. These figures are significant since the time consumed on road by people while traveling is continuously increasing in cities across the country.