The Delhi Metro is a metro serving Delhi and its nearby communities like Faridabad, Gurgaon, Noida and Ghaziabad in National Capital Region in India. Delhi Metro is the world's twelfth biggest metro framework regarding both length and number of stations. The system consists of five colour coded lines and one quicker Airport Express line, with an aggregate length of 213 kilometers serving 160 stations (including 6 on Airport Express line). The framework has a mix of underground, at-level, and elevated stations utilizing both expansive gage and standard-gauge. The Delhi metro had a normal day by day ridership of 3 million travelers, and, as of August 2016, had as of now extended 3.25 billion travelers since its beginning.
Delhi Metro Rail Corporation Limited (DMRC), a state-possessed organization with equivalent value support from Government of India and Government of Delhi, constructed and operates the Delhi Metro. The Delhi Metro Rail Corporation has been affirmed by the United Nations as the primary metro rail and rail-based framework on the planet to get "carbon credits for decreasing nursery gas outflows" and aiding in diminishing contamination levels in the city by 630,000 tons each year. Delhi Metro Rail Corporation Limited works around 2000 treks day by day between 05:30 till 00:00 running with a progress shifting between 1-2 minutes and 4-10 minutes. The trains are more often than not of four, six and eight coaches. The power yield is supplied by 25-kilovolt, 50-hertz substituting current through overhead catenary.
Delhi metro planning started in 1984, when the Delhi Development Authority and the Urban Arts Commission thought of a proposition for building up a multi-modular transport framework for the city. Delhi Metro Rail Corporation (DMRC) was consolidated in May 1995, development began in 1998, and the primary segment, on the Red Line, opened in 2002. The advancement of system was isolated into stages, Phase I containing 3 lines was finished by 2006, and Phase II in 2011. Stage III is planned for fruition by 2016.