Metro map

Delhi Metro
Delhi Metro logo.svg
A Delhi Metro train on Magenta Line
OwnerDelhi Metro Rail Corporation
LocaleNational Capital Region
Transit typeRapid transit
Number of lines12
Line number
Number of stations253[1][Nb 1]
Daily ridership4,720,168 (May–June 2019 average)[5][6]
Key peopleDurga Shanker Mishra (chairman)
Mangu Singh (managing director)[7]
HeadquartersMetro Bhawan, Barakhamba Road, New Delhi – 110001
Began operation24 December 2002; 17 years ago (24 December 2002)
Operator(s)Delhi Metro Rail Corporation
Number of vehicles310 Trains[8]
Train length4/6/8 coaches[8]
Headway3 minutes
System length348 km (216 mi)[3]
Track gauge1,676 mm (5 ft 6 in) (Indian gauge; (Red, Blue, Yellow line)
1,435 mm (4 ft 8 12 in) (Standard gauge) (All lines)
Electrification25 kV, 50 Hz AC OHE
Top speed100 Km/hr
System map

Rapid Transit Map of Delhi.jpg

The Delhi Metro is a rapid transit system serving Delhi and its satellite cities of Ghaziabad, Faridabad, Gurgaon, Noida, Bahadurgarh and Ballabhgarh, in the National Capital Region of India.[9] It is by far the largest and busiest metro in India, and second oldest after the Kolkata Metro.[10] The network consists of Eleven colour-coded regular lines serving 285 stations with a total length of 389 kilometres (242 mi).[2][3] The system has a mix of underground, at-grade, and elevated stations using both broad-gauge and standard-gauge. Delhi Metro operates over 2,700 trips daily, starting at around 05:00 and ending at 23:30.[11]

Construction started in 1998, and the first elevated section (Shahdara to Tis Hazari) on the Red Line opened in 2002. The first underground section (Vishwa VidyalayaKashmere Gate) on the Yellow Line opened in 2004.[12] The development of the network was divided into phases. Phase I with 3 lines was completed by 2006, and Phase II in 2011. As of March 2020, Phase III is in the finishing stage and scheduled to be mostly complete by the end of the year. Construction on Phase IV was formally started on 30 December 2019.[13] In 2010 Delhi Metro completed 10 years of operation, which was a major milestone to achieve. To mark its 10th anniversary, Delhi Metro introduced 8 coach train for the very first time.A commemorative souvenir book titled “Delhi Metro: A Decade of Dedication, 10 Years of Metro Operations” was also launched. An exclusive 'METRO SONG-zindagi hai Delhi metro' composed by music director Vaibhav Saxena was also released and played at metro stations and FM stations.[14][15][16][17]

Delhi Metro Rail Corporation Limited (DMRC), a company with equal equity participation from the Government of India and the Government of Delhi, built and operates the Delhi Metro.[18][19] DMRC was certified by the United Nations in 2011 as the first metro rail and rail-based system in the world to get carbon credits for reducing greenhouse gas emissions, reducing carbon emission levels in the city by 630,000 tonnes every year.[8]

Delhi Metro also interchanges with the Rapid Metro Gurugram (with a shared ticketing system) and Noida Metro. On 22 October 2019, the DMRC took over the operations of the financially troubled Rapid Metro Gurgaon.[20]


Evolution of the Delhi Metro 2003 to 2018


The concept of a mass rapid transit for New Delhi first emerged from a traffic and travel characteristics study which was carried out in the city in 1969.[21] Over the next several years, many official committees by a variety of Government departments were commissioned to examine issues related to technology, route alignment, and Governmental jurisdiction.[22] In 1984, the Urban Arts Commission came up with a proposal for developing a multi-modal transport system, which would consist of constructing three underground mass rapid transit corridors as well augmenting the city's existing suburban railway and road transport networks.[23]

While extensive technical studies and the raising of finance for the project were in progress, the city expanded significantly resulting in a two-fold rise in population and a five-fold rise in the number of vehicles between 1981 and 1998.[23] Consequently, traffic congestion and pollution soared, as an increasing number of commuters took to private vehicles with the existing bus system unable to bear the load.[21] An attempt at privatizing the bus transport system in 1992 merely compounded the problem with inexperienced operators plying poorly maintained, noisy and polluting buses on lengthy routes, resulting in long waiting times, unreliable service, extreme overcrowding, unqualified drivers, speeding and reckless driving[24] which even led to road accidents. To rectify the situation, the Government of India and the Government of Delhi jointly set up a company called the Delhi Metro Rail Corporation (DMRC) on 3 May 1995, with Elattuvalapil Sreedharan as the managing director.[25] Sreedharan handed over the charge as Managing Director of DMRC to Mangu Singh on 31 December 2011.

Initial construction

Physical construction work on the Delhi Metro started on 1 October 1998.[26] After the previous problems experienced by the Kolkata Metro, which was badly delayed and 12 times over budget due to "political meddling, technical problems and bureaucratic delays", DMRC is a special-purpose organisation vested with great autonomy and powers to execute this gigantic project involving many technical complexities, under a difficult urban environment and within a very limited time frame. DMRC was given full powers to hire people, decide on tenders and control funds.[27] The DMRC then hired the Hong Kong MTRC as a technical consultant on rapid transit operation and construction techniques.[28] As a result, construction proceeded smoothly, except for one major disagreement in 2000, where the Ministry of Railways forced the system to use broad gauge despite the DMRC's preference for standard gauge.[29]

The first line of the Delhi Metro, the Red Line, was inaugurated by Atal Bihari Vajpayee, the then Prime Minister of India on 24 December 2002.[30] The Delhi Metro became the second underground rapid transit system in India, after the Kolkata Metro, when the Vishwa VidyalayaKashmere Gate section of the Yellow Line opened on 20 December 2004. This underground line was inaugurated by the then Prime Minister Manmohan Singh. The first phase of the project was eventually completed in 2006,[31][32] on budget and almost three years ahead of schedule, an achievement described by Business Week as "nothing short of a miracle".[33]

Phase I

Phase 1 Network
No. Line Name Stations Length
Terminals Opening Date
1 Red Line 6 8.3 Shahdara Tis Hazari 25 December 2002
4 4.1 Tis Hazari Trinagar(Now Inderlok) 3 October 2003
8 8.9 Inderlok Rithala 31 March 2004
2 Yellow Line 4 4.0 Vishwa Vidyalaya Kashmere Gate 20 December 2004
6 6.84 Kashmere Gate Central Secretariat 3 July 2005
3 Blue Line 22 22.9 Dwarka Barakhamba Road 31 December 2005
6 6.5 Dwarka Sector 9 1 April 2006
3 2.8 Barakhamba Road Indraprastha 11 November 2006
Total 59 65.0

A total of 65 kilometres (40 mi) long network with 59 stations and the following 3 routes (initial parts of Red, Yellow and Blue lines) were built within the limits of Delhi state, stations progressively started to open from 25 December 2002 to 11 November 2006.

Phase II

Phase 2 Network
No. Line Name Stations Length
Terminals Opening Date
1 Red Line 3 3.09 Shahdara Dilshad Garden 4 June 2008
2 Yellow Line 5 6.36 Vishwa Vidyalaya Jahangirpuri 4 February 2009
9 14.5 Huda City Centre Qutab Minar 21 June 2010
1 Chhatarpur 26 August 2010
9 12.53 Qutab Minar Central Secretariat 3 September 2010
3 Blue Line 1 15.07 Indraprastha Yamuna Bank 10 May 2009
10 Yamuna Bank Noida City Centre 12 November 2009
2 2.76 Dwarka Sector 9 Dwarka Sector 21 30 October 2010
4 Blue Line Branch 6 6.17 Yamuna Bank Anand Vihar ISBT 27 January 2010
2 2.57 Anand Vihar ISBT Vaishali 14 July 2011
5 Green Line 14 18.46 Inderlok Mundka 2 April 2010
2 Ashok Park Main Kirti Nagar 27 August 2011
6 Violet Line 13 13.6 Central Secretariat Sarita Vihar 3 October 2010
3 4.2 Sarita Vihar Badarpur 14 January 2011
Airport Orange Line 4 22.70 New Delhi Dwarka Sector 21 23 February 2011
2 Dhaula Kuan & Delhi Aerocity 15 August 2011
Total 86 124.90

A total of 124.90 kilometres (77.61 mi) long network with 86 stations and the following 10 new routes and extensions was built, out of which seven routes are extension spurs of the Phase I network, three were new colour-coded lines and three routes connect to other cities (Yellow Line to Gurgaon, Blue Line to Noida and Blue Line to Ghaziabad) of the national capital region, outside the physical limits of Delhi state, in the states of Haryana and Uttar Pradesh. At the end of Phases I and II, the cumulative total length of the network became 189.90 km (118.00 mi) with 151 stations progressively becoming operational from 4 June 2008 to 27 August 2011.[8][34]

Phase III

Phase-I (Red, Yellow and Blue lines) and phase-II (Green, Violet and Orange lines) had focused on adding new radial lines to expand the network. To reduce the congestion and improve the connectivity, Phase-III includes 11 extensions to the existing lines as well as building two ring lines (Pink and Magenta lines). Phase-III has 28 underground stations, 2 new lines and 11 route extensions, totaling 167.27 km (103.94 mi), with a cost of 350 billion (US$4.9 billion).[35] Phase 3 contains 3 new Lines in Delhi Metro System, Pink Line running on Inner Ring Road (Line 7), Magenta Line running on Outer Ring Road (Line 8) & Grey Line connecting Dwarka and Najafgarh (Line 9).

Phase 3 Network
No. Line Stations Length
Terminals Opening date
1 Red Line 8 9.41 Dilshad Garden Shaheed Sthal
(New Bus Adda)
9 March 2019[36]
2 Yellow Line 3 4.37 Jahangirpuri Samaypur Badli 10 November 2015
1 1.057 Samaypur Badli Siraspur Plan Scrapped
3 Blue Line 6 6.675 Noida City Centre Noida Electronic City 9 March 2019[37]
5 Green Line 7 11.182 Mundka Brigadier Hoshiyar Singh 24 June 2018
6 Violet Line 7 9.37 Central Secretariat Kashmere Gate 28 May 2017
9 13.875 Badarpur Escorts Mujesar 6 September 2015
2 3.205 Escorts Mujesar Raja Nahar Singh 19 November 2018
7 Pink Line 12 21.56 Majlis Park Durgabai Deshmukh
South Campus
14 March 2018
6 8.1 Durgabai Deshmukh
South Campus
Lajpat Nagar 6 August 2018
15 17.8 Trilokpuri Sanjay Lake Shiv Vihar 31 October 2018
5 9.7 Lajpat Nagar Mayur Vihar Pocket I 31 December 2018
0 1.5 Mayur Vihar Pocket I Trilokpuri Sanjay Lake (Expected : September 2020)
8 Magenta Line 9 12.64 Kalkaji Mandir Botanical Garden 25 December 2017
16 25.26 Janakpuri West Kalkaji Mandir 29 May 2018
9 Grey Line 3 4.295 Dwarka Najafgarh 4 October 2019
1 1.18 Najafgarh Dhansa Bus Stand (Expected : December 2020)
Airport Orange Line 1 1.878 Dwarka Sector 21 ECC Centre (Expected : December 2020)
109 160.6

Work on Phase III started in 2011,[38][39] with 2016 being the planned deadline,[40] more than 20 tunnel boring machines were used simultaneously to expedite the work,[41] however, the actual work for the original was completed in March 2019, (except for a small stretch due to non-availability of land).[42] Later, certain small extensions to the Delhi Metro were added as part of the Phase – III project which are still under-construction and expected to get completed by 2020.

Kalkaji Mandir to Botanical Garden section of Magenta Line was inaugurated by Prime Minister Narendra Modi on Christmas 2017, making it the first driverless metro line of Delhi Metro.[43]

The expected daily ridership of the whole network of all phases, after the completion of Phase-III, is 4 million passengers. The communication-based train control (CBTC) is being used in Phase-III trains which enable trains to run at a short headway of 90 seconds.[44] Keeping this in mind and other constraints, DMRC changed its decision to build 9-car-long stations for new lines and instead opting for shorter stations which can accommodate 6-car trains.

Construction accidents

On 19 October 2008, a launching gantry and a part of the overhead Blue Line extension under construction in Laxmi Nagar, East Delhi, collapsed and fell on passing vehicles underneath. Workers were using a crane to lift a 400-tonne concrete span of the bridge when the gantry collapsed along with a 34-metre-long (112 ft) span of the bridge on top of a Blueline bus, killing the driver and a labourer.[45]

On 12 July 2009, a section of a bridge collapsed while it was being erected at Zamrudpur, near East of Kailash, on the Central Secretariat – Badarpur corridor. Six people died and 15 were injured.[46] The following day, on 13 July 2009, a crane that was removing the debris collapsed, and with a bowling pin effect collapsed two other nearby cranes, injuring six.[47] On 22 July 2009, a worker at Ashok Park Metro station was killed when a steel beam fell on him.[48] Over a hundred people, including 93 workers, have died since work on the metro began in 1998.[49]

On 23 April 2018, five people were injured when an iron girder fell off the elevated section of a Metro rail structure being constructed at the Mohan Nagar intersection in Ghaziabad. A car, an auto rickshaw and a motorbike were also damaged in the accident.[50]


The Delhi Metro is being built in phases. Phase I consisted of 58 stations and 65.0 km (40.4 mi) of route length,[51] of which 13.0 km (8.1 mi) is underground and 52.1 km (32.4 mi) surface or elevated.[citation needed] The inauguration of the DwarkaBarakhamba Road corridor of the Blue Line marked the completion of Phase I in October 2006.[52] Phase II of the network consists of 124.6 km (77.4 mi) of route length and 85 stations,[51] and is fully completed, with the first section opened in June 2008 and the last line opened in August 2011.[53] Phase-III has 28 underground stations, 2 new lines and 11 route extensions, totaling 167.27 km (103.94 mi), with a cost of 350 billion (US$4.9 billion) and having an expected completion date of mid 2019. Phase IV (113.2 km or 70.3 mi) is planned to be completed by 2024.[citation needed]

Delhi Metro: present network
Line No. Line Name First operational[4] Last extension[4] Stations[54] Length
Terminals Rolling stock Track gauge
1 Red Line 2002-12-24 2019-03-08 29 34.69 Shaheed Sthal (New Bus Adda) Rithala 35 trains 1676
2 Yellow Line 2004-12-20 2015-11-10 37 49.31 Samaypur Badli HUDA City Centre 60 trains 1676
3 Blue Line 2005-12-31 2019-03-09 50 56.61 Noida Electronic City Dwarka Sector 21 70 trains 1676
4 2010-01-07 2011-07-14 8 8.74 Yamuna Bank Vaishali 1676
5 Green Line 2010-04-03 2018-06-24 21 26.32 Inderlok Brigadier Hoshiyar Singh 20 trains 1435
2011-08-27 2 3.32 Ashok Park Main Kirti Nagar 1435
6 Violet Line 2010-10-03 2018-11-19 34 46.63 Kashmere Gate Raja Nahar Singh 44 trains 1435
Airport Orange Line 2011-02-23 6 22.70 New Delhi Dwarka Sector 21 10 trains 1435
7 Pink Line 2018-03-14 2018-12-31 23 39.72 Majlis Park Mayur Vihar Pocket I 29 trains 1435
15 17.86 Trilokpuri Sanjay Lake Shiv Vihar 13 trains 1435
8 Magenta Line 2018-03-24 2018-12-03 25 37.46 Botanical Garden Janakpuri West 26 trains 1435
9 Grey Line 2019-10-04 2019-10-04 3 4.295 Dwarka Najafgarh 3 trains 1435
2002-12-24 2019-10-04 253 347.66 310 trains
Map of the Delhi Metro network


Red Line (Line 1)

Older Rolling Stock used by the DMRC in Red Line. Most of these, which are running in Lines 2,3 and 4 are planned to be sent to Line 1

The Red Line was the first line of the Metro to be opened and connects Rithala in the west to Shaheed Sthal (New Bus Adda) in the east, covering a distance of 34.69 kilometres (21.56 mi).[55] It is partly elevated and partly at grade and crosses the Yamuna River between Kashmere Gate and Shastri Park stations.[56] The inauguration of the first stretch between Shahdara and Tis Hazari on 24 December 2002 caused the ticketing system to collapse due to the line being crowded to four times its capacity by citizens eager to have a ride.[57][58] Subsequent sections were inaugurated from Tis Hazari – Trinagar (later renamed Inderlok) on 4 October 2003,[59] Inderlok – Rithala on 31 March 2004, and Shahdara – Dilshad Garden on 4 June 2008.[60] The red line has interchange stations, at Kashmere Gate with the Yellow Line and Violet Line, at Inderlok with the Green Line & at Netaji Subhash Place & Welcome with the Pink Line. In the future the red line will have an interchange with the Blue Line at Mohan Nagar. Beginning 24 November 2013, a total of six-coach trains were eventually commissioned on the Red Line.[61] On 8 March 2019, extension of the line from Dilshad Garden to Shaheed Sthal(New Bus Adda) was opened for public.

Yellow Line (Line 2)

New Bombardier Trainset of Yellow Line

The Yellow Line was the second line of the Metro and was the first underground line to be opened on the Delhi Metro.[62] It runs for 49 kilometres (30 mi) from north to south and connects Samaypur Badli with HUDA City Centre in Gurgaon. The northern and southern parts of the line are elevated, while the central section which passes through some of the most congested parts of Delhi is underground. The first underground section of Delhi Metro between Vishwa Vidyalaya and Kashmere Gate opened on 20 December 2004, and the subsequent sections of Kashmere Gate – Central Secretariat opened on 3 July 2005, and Vishwa Vidyalaya – Jahangirpuri on 4 February 2009.[60] This line also possesses the country's second deepest Metro station[63] at Chawri Bazar, situated 25 metres (82 ft) below ground level.[64]

On 21 June 2010, an additional stretch from Qutub Minar to HUDA City Centre was opened, initially operating separately from the mainline. However, Chhatarpur station on this line opened on 26 August 2010. Due to delays in acquiring the land for constructing the station, it was constructed using prefabricated structures in a record time of nine months and is the only station in the Delhi Metro network to be made completely of steel.[65][66] The connecting link between Central Secretariat and Qutub Minar opened on 3 September 2010.[67]

On 10 November 2015, the line was further extended between Jahangirpuri and Samaypur Badli in Outer Delhi.[68] Interchanges are available with the Red Line and Kashmere Gate ISBT at Kashmere Gate, Blue Line at Rajiv Chowk, Violet Line at Kashmere Gate & Central Secretariat, Airport Express (Orange) Line at New Delhi, Pink Line at Azadpur & INA, Magenta Line at Hauz Khas, Rapid Metro Gurgaon at Sikandarpur and with the Indian Railways network at Chandni Chowk and New Delhi.[69][70]

The Yellow Line is the first line of Delhi Metro which has phased out all four coach trains with six and eight coach configuration. The Metro Museum at Patel Chowk Metro station is a collection of display panels, historical photographs and exhibits, tracing the genesis of the Delhi Metro. The museum was opened on 1 January 2009.[63]

Blue Line (Line 3 & Line 4)

New Bombardier Trainset of Blue Line

The Blue Line was the third line of the Metro to be opened and the first to connect areas outside Delhi.[71] Mainly elevated and partly underground,[72] it connects Dwarka Sub City in the west with the satellite city of Noida in the east, covering a distance of 56.61 kilometres (35.18 mi).[71] The first section of this line between Dwarka and Barakhamba Road was inaugurated on 31 December 2005, and subsequent sections opened between Dwarka – Dwarka Sector 9 on 1 April 2006, Barakhamba Road – Indraprastha on 11 November 2006, Indraprastha – Yamuna Bank on 10 May 2009, Yamuna Bank – Noida City Centre on 12 November 2009, and Dwarka Sector 9 – Dwarka Sector 21 on 30 October 2010.[60] This line crosses the Yamuna River between Indraprastha and Yamuna Bank stations,[56] and has India's second extradosed bridge across the Northern Railways mainlines near Pragati Maidan.[73]

A branch of the Blue line, inaugurated on 8 January 2010, takes off from Yamuna Bank station and runs for 6.25 kilometres (3.88 mi) up to Anand Vihar in east Delhi.[74] It was further extended up to Vaishali which was opened to the public on 14 July 2011.[75] A small stretch of 2.76 kilometres (1.71 mi) from Dwarka Sector 9 to Dwarka Sector 21 was inaugurated on 30 October 2010.[76] On 9 March 2019, a 6.67 km extension of the line from Noida City Centre to Noida Electronic City was opened for public by Prime Minister Narendra Modi.[77] Interchanges are available with the Noida Sector 51 station of Aqua Line (Noida Metro) at Noida Sector 52 station, Yellow Line at Rajiv Chowk station,[72] Green Line at Kirti Nagar, Violet Line at Mandi House, Delhi Airport Metro Express (Orange) Line at Dwarka Sector 21, Pink Line at Rajouri Garden, Mayur Vihar Phase-I, Karkarduma & Anand Vihar, Magenta Line at Janakpuri West & Botanical Garden and with the Indian Railways network and Interstate Bus Station (ISBT) at Anand Vihar station, which connects with Anand Vihar Railway Terminal and Anand Vihar ISBT.[78] In the future it will have an interchange with the Red Line at Mohan Nagar.

Green Line (Line 5)

Mitsubishi-ROTEM-BEML rolling Stock of Green Line

Opened in 2010, Green Line (Line 5) is the fifth line of the Delhi Metro network and the first line on standard gauge, as opposed to previous broad gauge lines. It runs between Inderlok (a station on the Red Line) and Brigadier Hoshiyar Singh with a branch line connecting the line's Ashok Park Main station with Kirti Nagar station on the Blue Line. The completely elevated line, built as part of the Phase-II of Delhi Metro runs mostly along the busy NH 10 route in West Delhi. The line consists of 23 stations including an interchange station covering a total length of 29.64 km (18.42 mi). This line also has the country's first standard-gauge maintenance depot at Mundka.[79]

The line was opened in two stages, with the 15.1 km (9.4 mi) Inderlok – Mundka section opening on 3 April 2010 and the 3.5 km (2.2 mi) Kirti Nagar – Ashok Park Main branch line on 27 August 2011. On 6 August 2012, in a step that will improve commuting in National Capital Region, the Union Government approved an extension of Delhi Metro from Mundka to Bahadurgarh in Haryana. The 11.18 km (6.95 mi) metro stretch have seven stations at Mundka Industrial Area, Ghevra, Tikri Kalan, Tikri Border, Pandit Shree Ram Sharma, Bahadurgarh City and Brigadier Hoshiyar Singh between Mundka and Bahadurgarh. This stretch was opened on 24 June 2018. Interchanges are available with Red Line at Inderlok and Blue Line at Kirti Nagar.

Violet Line (Line 6)

Mitsubishi-ROTEM-BEML rolling Stock of Violet Line

The Violet Line is the sixth line of the Metro to be opened, and the second standard-gauge corridor after the Green Line. The 47-kilometre-long (29 mi) line connects Raja Nahar Singh in Ballabgarh via Faridabad to Kashmere Gate in New Delhi, with 26 km (16 mi) being overhead and the rest underground. The first section between Central Secretariat and Sarita Vihar was inaugurated on 3 October 2010, just hours before the inaugural ceremony of the 2010 Commonwealth Games, and connects the Jawaharlal Nehru Stadium, which was the venue for the opening and closing ceremonies of the event.[80] Completed in just 41 months, it includes a 100-metre-long (330 ft) bridge over the Indian Railways mainlines and a 167.5-metre-long (550 ft) cable-stayed bridge across an operational road flyover and connects several hospitals, tourist attractions, and a major industrial estate along its route. Services are provided at intervals of 5 min.[80][81] An interchange with the Yellow Line is available at Central Secretariat through an integrated concourse. On 14 January 2011, the remaining portion from Sarita Vihar to Badarpur was opened for commercial service, adding three new stations to the network and marking the completion of the line.[82]

The section between Mandi House and Central Secretariat, was opened on 26 June 2014. After that, a 971-metre section between ITO and Mandi House was opened on 8 June 2015. A 14 km (8.7 mi) extension southwards till Escorts Mujesar in Faridabad was inaugurated by Prime Minister Narendra Modi on 6 September 2015.[83] All the nine Metro stations of the Badarpur – Escorts Mujesar (Faridabad) section of Delhi Metro's Phase 3, have been awarded the highest possible rating (platinum) for adherence to green building norms, by the Indian Green Building Council (IGBC), which has devised a rating mechanism for Metro stations and buildings on a scale of platinum, gold, silver etc. for following the green building specifications. The awards for these stations were given to DMRC's Managing Director Mangu Singh by P C Jain, Chairperson of IGBC in the presence of DMRC's directors and senior officials on 10 September 2015.[84]

Currently, the Faridabad corridor of Delhi Metro Violet Line is the longest metro corridor outside of Delhi, consisting of 11 stations and the total length of corridor being 17 km (11 mi).[85] On 28 May 2017, the ITOKashmere Gate corridor of the Delhi Metro was formally flagged off for passenger services by the Union Minister of Urban Development, Venkaiah Naidu and the Chief Minister of Delhi, Arvind Kejriwal. This section which runs underground is popularly known as the Heritage Line.[86] Interchanges are available with Red Line at Kashmere Gate, Yellow Line at Kashmere Gate & Central Secretariat, Blue Line at Mandi House, Pink Line at Lajpat Nagar & Magenta Line at Kalkaji Mandir.

Orange Line : Airport Express Line

The interior of a Delhi Metro Airport Express train

The Airport Express line runs for 22.7 km (14.1 mi) from New Delhi Railway Station to Dwarka Sector 21, linking the Indira Gandhi International Airport. The line was operated by Delhi Airport Metro Express Pvt. Limited (DAMEL), a subsidiary of Reliance Infrastructure, the concessionaire of the line till 30 June 2013 and is now being operated by DMRC.[87] The line was constructed at a cost of 57 billion (US$800 million), of which Reliance Infrastructure invested 28.85 billion (US$400 million) and will pay fees on a revenue-share model.[88] The line has six stations (Dhaula Kuan and Delhi Aerocity became operational on 15 August 2011), with some featuring check-in facilities, parking, and eateries.[89] Rolling stock consists of six-coach trains operating at intervals of ten minutes and having a maximum speed of 135 km/h (84 mph).[89]

Originally scheduled to open before the 2010 Commonwealth Games, the line failed to obtain the mandatory safety clearance and was opened on 24 February 2011, after a delay of around 5 months. After 16 months of commencement of operations, the line was shut down for repairs of the viaducts on 8 July 2012.[90][91] The line reopened on 22 January 2013.[92] On 27 June 2013 Reliance Infrastructure Ltd intimated DMRC that they are unable to operate the line beyond 30 June 2013. Following this DMRC took over operations of Airport Express line from 1 July 2013 with an Operations and Maintenance team of 100 officials to handle the line.[93] In Jan 2015, DMRC reported that Airport Metro has recorded about 30 percent rise in its ridership following the fare reduction of up to 40 percent in July last year[94] On 14 September 2015 DMRC announced to reduce fares even further to improve the ridership of the line, the new fare structure will have maximum fare of ₹60 and minimum of ₹10 instead of ₹100 and ₹20 charged earlier, a reduction of about 40%.[95] DMRC has stated that this was done to reduce the crowding on Blue line, diverting some of the Dwarka-bound passengers to Airport Express Line, which is underutilised and faster compared to the Blue Line.

Interchanges are available with Yellow Line at New Delhi, Blue Line at Dwarka Sector 21, Durgabai Deshmukh South Campus metro station of Pink Line at Dhaula Kuan & with the Indian Railways network at New Delhi.

A proposed expansion into the ECC Centre in Dwarka Sector 25 is expected to be completed between 2020 and 2021.[96]

Pink Line (Line 7)

The Pink Line is the second new line of the Third Phase of the Delhi Metro that was partially opened on 14 March 2018, with a further extension opening on 6 August 2018. Currently, the line is opened between Majlis Park to Mayur Vihar Pocket I and Trilokpuri Sanjay lake to Shiv Vihar. On 31 October 2018, Trilokpuri Sanjay Lake to Shiv Vihar section is opened. On 31 December 2018, Lajpat Nagar to Mayur Vihar Pocket I section opened. Only 1.5 km between Mayur Vihar Pocket I to Trilokpuri Sanjay Lake is left due to land issue.

It consists of 38 metro stations from Majlis Park to Shiv Vihar, both in North Delhi. Upon completion, the Pink Line with a length of 58.59 kilometres (36.41 mi), will be the longest line in Delhi Metro, breaking the record set by the operational Blue Line(excluding branch line). It will be mostly elevated and will cover Delhi in an almost 'U' shaped pattern. The Pink Line is also known as the Ring Road Line, as the entire line passes alongside the busy Ring Road in Delhi, that witnesses massive traffic jams everyday.

The Pink line has interchanges with most of the operational lines of the network such as the Red Line at Netaji Subhash Place & Welcome, Yellow Line at Azadpur & INA, Blue Line at Rajouri Garden, Mayur Vihar Phase-I, Anand Vihar & Karkarduma, Dhaula Kuan of Delhi Airport Metro Express (Orange Line) at Durgabai Deshmukh South Campus, Violet Line at Lajpat Nagar, as well as with Hazrat Nizamuddin and Anand Vihar Terminal (Indian Railways) and the ISBT's at Anand Vihar and Sarai Kale Khan. The Pink Line has the highest point of Delhi Metro at Dhaula Kuan with a height of 23.6 metres, passing over the Dhaula Kuan grade separator flyovers and the Airport Express Line.[97]

Magenta Line (Line 8)

A Magenta Line Train waiting at a station.

The Magenta Line is the first new line of the Third Phase of the Delhi Metro that was partially opened on 25 December 2017 between Botanical Garden and Kalkaji Mandir. The entire length of the line was inaugurated on 28 May 2018.

It consists of 25 metro stations from Janakpuri West to Botanical Garden. The Magenta Line provide direct connectivity to Terminal 1D of Indira Gandhi International Airport. The Hauz Khas station on this line and the current Yellow Line is the deepest Metro station at a depth of 29 metres, surpassing the record set by Chawri Bazaar station on the Yellow Line, at a depth of 22 metres. The Magenta line has interchanges with the Yellow Line at Hauz Khas, Blue Line at Janakpuri West and Botanical Garden, and Violet Line at Kalkaji Mandir of the Delhi Metro network.

Grey Line (Line 9)

Hyundai-ROTEM rolling Stock of Line 9

The Grey Line (also known as Line 9) is the shortest route in the system. The Line opened to the public on 4 October 2019 between Najafgarh and Dwarka. It connects Dwarka to Dhansa Bus Stand in the western part of Delhi. It will cover around 4.295 km and comprises 4 stations; Dhansa Bus Stand, Najafgarh, Nangli and Dwarka, the last three in operation. The line have an interchange with Blue Line at Dwarka Station. Dhansa Bus Stand is scheduled to be operational by December 2020.[citation needed]

Rapid Metro Gurugram

Rapid Metro in Gurugram

After taking over the operation of the Delhi Airport Express Metro, the Delhi Metro Rail Corporation (DMRC) has taken over the operation of Gurugram Rapid Metro. In this regard, an agreement between the Haryana Government and the DMRC has been signed.

The DMRC took the complete operation of Gurugram Rapid Metro from 22 October 2019. However, no changes were be made in the fares and timings of the Metro, and the staff wasn't been changed yet, but in the future, DMRC will find out the possibility of how the Gurugram Rapid Metro can be made more useful.

The Rapid Metro was built on the PPP model by the Haryana Government. Under this, a closed circle of Rapid Metro was made between Gurugram Sector 55–56 to Phase II. There are 11 stations on this corridor totaling a length of 12 km. These include some busy stations like Cyber City, Belvedere Tower, Sikanderpur, Maulsari Avenue, Sector 55-56 and Sector 54 Chowk. Sekanderpur station is also an interchange station of the Yellow Line of Delhi Metro. Now the entire operation of Rapid Rail is in the control of DMRC itself.

From 22 October, DMRC has been maintaining a separate account for the Rapid Metro on the lines of the Delhi Airport Metro, in which the details of expenditure on metro revenue and operating expenses are recorded. It is being reported that due to the low number of passengers in the Rapid Metro in Peak Hour, it faced a lot of difficulty in its operation. In view of this, the Haryana Government decided to hand over the Gurugram Rapid Metro to the Delhi Metro Rail Corporation (DMRC).


Two metrolite lines have been approved: between Kirti Nagar – Dwarka ECC (Sector 25) and between Narela and Rithala.[98]


Phase IV

Delhi Metro was planned to be built in phases spread over around 20 years as with each phase having a target of five years and end of one phase marking the beginning of another. Phase I (65 km or 40 mi), Phase II (125 km or 78 mi) were completed in 2006 and 2011, respectively. Phase III lines are expected to be completed by mid 2019, a delay of 3 years from the originally planned timeline of 2016. Currently, the Phase IV plan approved by the Delhi Government is expected to add another 103 kilometres (64 mi). Construction work commenced on December 30, 2019, with an expected completion date of 2026.[99] This makes the total length of the Delhi Metro at the end of Phase IV to exceed 450 kilometres (280 mi),[100][42] which does not include other independently operated systems in the National Capital Region such as the 29.7 kilometres (18.5 mi) long Aqua Line of the Noida-Greater Noida Metro[101] and the 11.7 kilometres (7.3 mi) of the Rapid Metro Gurgaon that connect to the Delhi Metro.[102]

Phase IV with 6 new routes, with total length of 103.95 kilometres (64.59 mi) and cost of at least 450 billion (equivalent to 510 billion, US$7.1 billion or €6.6 billion in 2019), were approved in December 2018.[103] This may make Delhi Metro the 4th longest metro system by route length after Beijing Subway, Shanghai metro and Guangzhou Metro.

Phase 4 Network
Line No. Line Name Stations Length (km) Terminals Via Status Expected Date of Completion
8 Magenta Line 25 30 Janakpuri West RK Ashram Janakpuri West, Krishna Park Extension, Keshopur, Paschim Vihar, Peeragarhi, Mangolpuri, West Enclave, Pushpanjali, Deepali Chowk, Pitampura, Prashant Vihar, Pitampura North, Haiderpur Badli Mor, Bhalaswa Lake, Majlis Park, Azadpur, Ashok Vihar, Derawal Nagar, Ghanta Ghar, Pulbangash. Sadar Bazar, Nabi Kareem, RK Ashram. Under Construction[104] 2026[105]
TBC TBA 15 20.5 Tughlakabad Delhi Aerocity Tughlakabad, Tughlakabad Railway Colony, Anandmayee Marg, Sangam Vihar, Khanpur, Dr. Ambedkar Nagar, Saket G Block, Saket, Lado Sarai, Mehrauli, Kishangarh Sanjay Van, Masoodpur, Vasant Kunj, Mahipalpur, Delhi Aerocity, Terminal 1-IGI Airport.
7 Pink Line 8 12.55 Majlis Park Maujpur Majlis Park, Burari, Jharoda Majra, Jagatpur Village, Wazirabad Surghat, Sonia Vihar, Khajuri Khas, Bhajanpura, Yamuna Vihar, Maujpur.
TBC TBA 8 12.58 Inderlok Indraprastha Zakhira Depot, Daya Basti, Sarai Rohilla, Ajmal Khan Park, Nabi Kareem, New Delhi, Delhi Gate, Rajghat, Indraprastha
TBC TBA 11 7.96 Lajpat Nagar Chattarpur Extension Lajpat Nagar, Moolchand, Siri Fort, Chirag Delhi, Sheikh Sarai, Pushp Vihar Sector 6, Pushp Vihar Sector 5, Saket G Block, Neb Sarai, Dr. Ambedkar Colony, Chattarpur Extension.
1 Metro Lite – I 16 21.73 Rithala Narela TBD Under Study
3 4.86 Narela Nathupur TBD
2 Yellow Line 25 31.11 Huda City Centre Sikandarpur


Mainline rail interchange Gurgaon railway station, Palam Vihar, Udyog Vihar, Cyber City

Huda City Centre, Unitech Cyber Park, Bhaktawar Chowk, Subhash Chowk, Rajiv Chowk Gurgaon, Old Gurgaon, Gurgaon Railway Station, Daulatabad Chowk. Palam Vihar Extension, Palam Vihar, Dwarka Sector 25 ECC, Dwarka Sector 21, Bijwasan, Kapashera Border, Udyog Vihar, Cyber City. Approved
3 Blue Line 6 5.1[106][107] Noida Electronic City Sahibabad Noida Electronic City, Indirapuram, Indirapuram Extension, Kinauni Village, Vasundhara Sector 5, Sahibabad.
4 Blue Line Branch 4 5.06 Vaishali Mohan Nagar



Vaishali, Vaishali Extension, Vasundhara Sector 16, Sahibabad, Mohan Nagar.
TBC TBA 8 30.38[108][109][110] Bata Chowk Huda City Centre Bata Chowk, Shaheed Chowk, Sector 50 Faridabad, Sector 48 Faridabad, Badhkal Enclave, Gurgaon Sector 42, Shushant Lok 1, Huda City Centre.
TBC Metro Lite – II 20 20 Kirti Nagar Dwarka Sector 25 ECC Centre Kirti Nagar, Mansarovar Garden, Mayapuri, Hari Nagar, Mayapuri Industrial Area, Jail Road, Tihar Jail, Sitapuri, Dabri Mor Janakpuri South, Vijay Enclave, Mahaveer Enclave, Dwarka Sector 2, Dwarka Sector 1, Dwarka Sector 7, Dwarka Sector 6, Dwarka Sector 10, Dwarka Sector 20, Dwarka Sector 23, Dwarka Sector 24, Dwarka Sector 25 ECC Centre.
Total 145 201.83

Proposed Phase V

Former Managing Director of DMRC Sreedharan stated that by the time Phase IV is completed, the city will need Phase V to cope with rising population and transport needs.[38] Planning work for Phase V has not started. However the following corridors, while not specifically tied or approved to any expansion phase have been suggested to be constructed in the near future: