 Delhi Metro has been registering a continuous increase in ridership since its inception . When Metro services were introduced in 2002 , the average ridership was 80 @,@ 000 passengers per day . As of 2015 , daily ridership has risen to 2 @.@ 6 million , with the latest ridership record set on 28 August 2015 . On 4 August 2014 daily ridership crossed the 2 @.@ 7 million figure . Since then the highest ridership has kept on surpassing the previous best , compelling metro authorities to keep increasing the services on busy routes . Most recent Delhi Metro daily ridership record of 3 @.@ 175 million passengers was reached on the eve of the <unk> ( 28 August 2015 ) , when commuters poured in large numbers throughout the day . On 25 December 2014 , it was reported that the ridership of the Airport Express had almost doubled in the past year to almost 600 @,@ 000 passengers per month now , as compared to just above 300 @,@ 000 at the beginning of the calendar year . Currently , Delhi Metro has about 220 trains of four , six and eight coaches totalling 1 @,@ 290 coaches . It is further planning to add 421 more coaches on the existing route before the completion of phase 3 . During the financial year 2015 , DMRC on an average pressed 1 @,@ 083 coaches in an hour ( during peak hour ) , in 2012 – 13 , the number was 819 . On an average trains make 2 @,@ 880 trips per day . 
