Delhi Metro: India’s Punctual Urban Lifeline — A Timeline of Growth and Transformation

DMRC reports 99.95% punctuality and a 416.5 km network Service

PTI, citing DMRC, reported punctuality of 99.95% for 2026 so far, with a train counted as late only if it arrives more than 59 seconds behind schedule. The same report gave the network as 416.5 km with 303 stations on 12 lines and 31 interchange stations, and average daily ridership of about 64.06 lakh journeys (Tribune/PTI).

The 416.5 km figure includes the Noida Aqua Line and Gurugram Rapid Metro, which DMRC operates. The core Delhi Metro network is 374.47 km. See the length table above.

Delhi approves Phase V(B): seven more corridors proposed Planned

According to Wikipedia’s summary, the Government of Delhi approved seven Phase V(B) corridors totalling 97.158 km and 65 stations at an estimated ₹48,204 crore and sent the proposal to the Union Government (Wikipedia). A July 2026 Business Today feature put the combined Phase IV, V(A) and V(B) plan at about 217 km, 123 stations and 16 corridors (Business Today).

A state approval is not a Union approval, and neither is a construction start.

Two Phase IV sections open, taking the core network to 374.47 km Network

Two stretches opened on 8 March 2026: Deepali Chowk to Majlis Park on the Magenta Line (9.92 km, seven stations) and Majlis Park to Maujpur Babarpur on the Pink Line (12.3 km) (Indian Infrastructure). All India Radio counted eight elevated stations on the Pink section and said it takes that line to about 71.56 km (AIR); the Indian Infrastructure list names ten, because it includes Majlis Park, which was already open.

The same event was billed to include foundation stones for three Phase V(A) corridors; AiTimeline found no post-event report confirming it. After these openings, Wikipedia lists the core network at 374.47 km and 271 stations (Wikipedia).

Cabinet approves Phase V(A): three corridors, 16.076 km Planned

The Union Cabinet approved R.K. Ashram Marg to Indraprastha (9.913 km, with a Central Vista link to the Kartavya Bhawans), Aerocity to IGI Airport Terminal 1 (2.263 km) and Tughlakabad to Kalindi Kunj (3.9 km): 16.076 km at ₹12,014.91 crore (IANS). The report did not give a Phase V(A) completion year. It gave December 2026 only as the target for the separate Phase IV priority corridors.

Approval is a planning milestone. The corridors are not open.

The first train, TS#01, marks 23 years Origins

DMRC marked 23 years since the 24 December 2002 inauguration and said the original train, TS#01, is still in service. DMRC says it began with four coaches, went to six in 2014 and to eight in 2023, and has run about 2.9 million km and carried over 60 million passengers (DMRC release). AiTimeline could not open that page, so these figures are as relayed in the source material, not independently checked.

About 2.35 billion journeys in a year Service

Wikipedia, citing DMRC data, gives about 235 crore (2.35 billion) passenger journeys in 2025 and an average of roughly 64.6 lakh a day (Wikipedia). A journey is a trip, so someone commuting both ways counts twice. The 2026 average reported by PTI is about 64.06 lakh.

Record day: 81,87,674 passenger journeys Service

DMRC recorded 81,87,674 passenger journeys (about 8.19 million) across all lines on 8 August 2025, its highest single day, a day before Raksha Bandhan. It ran 92 additional trips that day and scheduled 455 extra on 9 August, and social media showed packed platforms on the Yellow, Blue and Violet lines (IANS). The Corporation’s own 2024–25 annual report also calls it “unprecedented” (DMRC annual report), and the 2026 Tribune/PTI report still treats it as the record.

Line 4 reported carbon neutral Service

The Tribune reported on 14 October 2024 that DMRC’s Line 4, Yamuna Bank to Vaishali in Ghaziabad, had received a carbon-neutral certification (Tribune). The report did not name the certifier or standard, so treat it as a DMRC claim. The benefit of any metro depends on the electricity it uses and on how many car journeys it replaces.

Phase IV opens its first section: Janakpuri West to Krishna Park Extension Network

The first Phase IV section, Janakpuri West to Krishna Park Extension (2.03 km) on the Magenta Line, was inaugurated on 5 January 2025 (Metro Rail Guy; Wikipedia). Phase IV was finalised by the Delhi Government in December 2018 and construction began on 30 December 2019, with 2026 the expected completion year on Wikipedia’s page.

Airport Express extends to Yashobhoomi Dwarka Sector 25 Network

The Airport Express line was extended from Dwarka Sector 21 to Yashobhoomi Dwarka Sector 25 on 17 September 2023 (Wikipedia). The line first opened as New Delhi to Dwarka Sector 21 on 23 February 2011.

Phase III is completed Network

Phase III, which began in 2011 and totals 162.375 km and 111 stations, ended with the Grey Line extension to Dhansa Bus Stand on 18 September 2021 (Wikipedia). The Pink Line began driverless operation on 25 November 2021 and the Magenta Line on 28 December 2021. PTI says about 29% of the network now runs with unattended train operation.

The Magenta Line opens Kalkaji Mandir to Botanical Garden Network

On 25 December 2017 the Magenta Line section from Kalkaji Mandir to Botanical Garden opened, linking south Delhi with Noida (Wikipedia). The Pink Line followed: its first listed section, Majlis Park to Durgabai Deshmukh South Campus, opened on 14 March 2018. A source brief called the 2017 opening a Pink Line milestone, but the record shows it was the Magenta Line. The brief’s 12.64 km length comes from DMRC’s 2017–18 annual report, which AiTimeline did not open.

Phase II is completed: 123.30 km, 86 stations Network

Phase II stations opened between 4 June 2008 and 27 August 2011, adding 123.30 km and 86 stations. The Airport Express opened from New Delhi to Dwarka Sector 21 on 23 February 2011 and was extended to Dhaula Kuan and Delhi Aerocity on 15 August 2011 (Wikipedia).

The Commonwealth Games deadline, and what was not ready Network

Delhi hosted the Commonwealth Games in October 2010, and Phase II work ran against that deadline. The Airport Express was not open during the Games: its first section opened on 23 February 2011 and its Aerocity extension in August 2011 (Wikipedia). A brief that places the airport link in the 2010 expansion needs that correction. AiTimeline did not find a verified list of which Phase II sections opened specifically for the Games.

Phase I is finished: 64.75 km, 59 stations Network

Phase I stations opened from 25 December 2002 to 11 November 2006, giving 64.75 km and 59 stations (Wikipedia). The underground Yellow Line section opened on 20 December 2004. In 2002 the Tribune expected a 63 km Phase I by 2005; it was completed about a year later than that (Tribune, 25 Dec 2002).

Delhi Metro opens: Shahdara to Tis Hazari Origins

Prime Minister Atal Bihari Vajpayee inaugurated the Metro on Tuesday, 24 December 2002 and rode from Kashmere Gate to Seelampur before flagging the train on toward Shahdara. Public service began on 25 December. The Tribune gave the opening stretch as 8.3 km; other reports say 8.2 or 8.4 km, so treat “about 8 km” as safe (Tribune, 25 Dec 2002). Japan financed 56% of the project through a soft loan of up to ₹2,090 crore.

Construction of Phase I begins Origins

Construction began on 1 October 1998. In 1997 Japan had granted official development assistance loans to finance the first phase (Wikipedia). Building through dense neighbourhoods meant moving utilities, closing roads and coordinating many agencies.

DMRC is set up Origins

The Government of India and the Government of Delhi set up the Delhi Metro Rail Corporation on 3 May 1995, with E. Sreedharan as managing director (Wikipedia). It is a joint venture of the two governments on an equal footing. The Corporation’s own site was not readable to AiTimeline, so the date rests on Wikipedia.

From a traffic study to a mass-transit proposal Origins

Wikipedia traces the idea of mass rapid transit for Delhi to a 1969 traffic and travel study. In 1984 the Urban Arts Commission proposed a multi-modal system with three underground mass rapid transit corridors, plus better suburban rail and roads (Wikipedia). The opening in 2002 was the end of a long planning process, not a single decision.