Blue Line (Delhi Metro)

Blue Line
Fleets of Blue line manufactured by Mitsubishi-ROTEM.
Overview
Type	Rapid transit
System	Delhi Metro
Termini	Noida City Centre Dwarka Sector 9
Stations	Main Line: 44, Branch: 8
Operation
Opened	Main Line: 31 December 2005, Branch: 6 January 2010
Operator(s)	Delhi Metro Rail Corporation
Character	At-grade, underground, and elevated
Technical
Line length	Main Line: 50.56 kilometers (31.42 mi), Branch: 6.25 kilometers (3.88 mi)
Track gauge	Indian gauge
Electrification	25 kV, 50 Hz AC through overhead catenary

The Blue Line of the Delhi Metro system in Delhi consists of 44 metro stations from Dwarka Sector 21 to Noida City Centre (Sector 32) with a length of 50.56 km and a branch line consisting of 8 stations from Vaishali to Yamuna Bank, with a length of 6.25 km.

The Dwarka-Barakhamba Road section of the line was inaugurated by the Prime Minister of India, Dr. Manmohan Singh on 31 December 2005 and opened to the public on 31 December 2005. It is the longest line currently running on the Delhi Metro network.

Karkardooma station on Anand Vihar branch is the highest station of Delhi metro with a platform height of 19 meters. Rajouri Garden station on the main line is the second highest station with a height of 17 metres.

Vaishali extension
A small extension of length 2.57 km has been constructed and opened on 14 July 2011 connecting Anand Vihar station of the Blue Line branch with Vashali Metro station in Ghaziabad, a satellite city near Delhi.

Najafgarh extension
A branch line from Dwarka station to Najafgarh is planned under Phase III and has received approval. The extension will see 3 new stations being added to the blue line. Construction work on this extension started in September 2013.

Noida extension
In April 2014 the Delhi Government approved extension of extension of line eastwards from Noida City Centre to Sec-62. The extended line would have 5 new stations in a distance of 6 kilometers. Later, the Govt. approved the line to be extended till Greater Noida.