NEW DELHI: The cumulative ridership of the Delhi Metro within a financial year crossed the one billion mark (100 crores) for the first time on Wednesday.Delhi Metro registered a 6.56 per cent growth in average daily ridership since the last financial year 2015-16.According to the DMRC, since April 1, 2016, a total of 1.001 billion (100.165 crores) passengers have travelled by metro till last night.Last year, the Delhi Metro had recorded 94.69 crore ridership, where as the average daily ridership has increased by 43 per cent in the last five years.