Delhi metro rail Corporation also known as DMRC. There r various line in delhi for traveling all over delhi. When traffic becomes your enemy them then you will fight by DMRC with traffic.
DELHI TRAFFIC is also world wide famous, if someone trapped in it. He/She is going to waste his/her really big time. At that time DMRC will make you comfortable. Problem in dmrc is that there is huge traffic in delhi metro in peak hours.