Metro is only the transportation which provides the passenger a quick service.Really I’am used to this transportation.Before when there was no metro really its very difficult to reached at time in office, I mean I have to face pollution, traffic, traffic noises and all.The delhi metro is very convenient as its so economy and comfort, it has great facility of air conditioner The main thing is that there is no headache of parking.Really the government done a great job by starting this kind of transportation.