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 Mumbai Metro at Gundavali Station | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Overview | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Area served | Mumbai Metropolitan Region | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Locale | Mumbai | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Transit type | Train | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Number of lines |
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| Line number | OperationalUnder ConstructionApproved & Proposed | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Number of stations | 68 | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Daily ridership | 7.47lakh (0.74 million, 2024-25) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Annual ridership | 27.3crore (273 million, 2024-25) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Chief executive | S.V.R Srinivas, CMD & Metropolitan Commissioner | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Headquarters | NaMMTRI Building, Plot No. R-13, E-Block,Bandra Kurla Complex,Bandra (E),Mumbai,Maharashtra 400051. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Website | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Operation | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Began operation | 8 June 2014; 11 years ago (2014-06-08) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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| Train length |
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| Headway |
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| Technical | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| System length | 80.03 km (49.73 mi) (Operational) 132.45 km (82.30 mi) (Under Construction) 138.92 km (86.32 mi) (Approved & Proposed) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Track gauge | 1,435 mm (4 ft 8+1⁄2 in)standard gauge | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Electrification | 25 kV 50 Hz ACOverhead line[1] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Top speed | 80 km/h (50 mph)[2] | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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TheMumbai Metro is arapid transit train system serving the city ofMumbai and the widerMumbai Metropolitan Region inMaharashtra,India.
While theMaharashtra Metro Rail Corporation Limited is responsible for all metro rail projects being developed in Maharashtra, except for those in the Mumbai Metropolitan Area, theMumbai Metropolitan Region Development Authority is the authority responsible for maintaining the metro system in the Greater Mumbai area.
The rapid transit metro system is designed to reduce traffic congestion in the city and supplement the overcrowdedMumbai Suburban Railway network. It is being built in three phases, over 15 years, with overall completion, expected in October 2026. The Mumbai Metro is thethird longest operational metro network in India with an operational length of 80.43 km (49.98 mi) as of October 2025. When completed, the core system will comprise sixteen high-capacitymetro railway lines, spanning a total of more than 523 kilometres (325.0 mi) (25% underground, the rest elevated, with a minuscule portion built at-grade) and serviced by 350 stations.[3]
Blue Line 1 of the Mumbai Metro is operated by Mumbai Metro One Private Limited (MMOPL), a joint venture betweenReliance Infrastructure (74%), theMumbai Metropolitan Region Development Authority (26%) and formerly byRATP Dev Transdev Asia (5%).[4] While lines2,4,5,6,7 and their extensions will be built by theMumbai Metropolitan Region Development Authority (MMRDA) and operated by the Maha Mumbai Metro Operations Corporation Limited (MMMOCL), the completely undergroundAqua Line 3 andGreen Line 11 will be built by Mumbai Metro Railway Corporation Ltd (MMRC).
In June 2006,Prime MinisterManmohan Singh laid the foundation stone for the first phase of the Mumbai Metro project, although construction work began in February 2008.[5][6][7] A successful trial run was conducted in May 2013,[8][9][10] and the system'sfirst line commenced operations on 8 June 2014. Many metro projects were delayed because of late environmental clearances, land acquisition troubles, and protests.
After nearly eight years, two new metro corridors, 2A and 7, were inaugurated on 2 April 2022, and are now operational. On 5 October 2024, the 12 km (7.5 mi) underground BKC to Aarey Jogeshwari-Vikhroli Link Road section of theAqua Line 3 was inaugurated. On 9 October 2025, Aqua Line further extension till Cuffe Parade was inaugurated and is now fully operational. Additionally, there are 8 other metro lines currently under construction in the city.
Being the capital ofMaharashtra, Mumbai is among thelargest cities in the world, with a totalmetropolitan area population of over 2crore (20 million) as of 2011,[11] and a population growth rate of around 2% per annum.[12] Mumbai has the advantage of a highmodal share of the public (88%) in favour of a public mass transport system.[13] The existingMumbai Suburban Railway carries over 70lakh (7 million) passengers per day,[14] and is supplemented by theBrihanmumbai Electric Supply and Transport (BEST) bus system, which provides feeder services to station-going passengers to allow them to complete their journeys. Until 1980s, transport in Mumbai was not a big problem. The discontinuation of trams resulted in a direct increase of passenger pressure on the suburban railway network. By 2010, the population of Mumbai doubled. However, due to the city's geographical constraints and rapid population growth, road and rail infrastructure development has not been able to keep pace with the growing demand over the last 4-5 decades.[15] Moreover, the Mumbai Suburban Railway, though extensive, is not built to rapid transit specifications. The main objective of the Mumbai Metro is to provide mass rapid transit services to people within an approach distance of between 1 and 2 kilometres (0.62 and 1.24 mi), and to serve the areas not connected by the existing Suburban Rail network.The master plan unveiled by the MMRDA in 2004 encompassed a total of 146.5 kilometres (91.03 mi) of track, of which 32 kilometres (19.88 mi) would be underground.[16] The Mumbai Metro was proposed to be built in three phases, at an estimated cost of₹19,525 crore.[15] In September 2009, the proposedHutatma Chowk –Ghatkopar was reduced to a line between Hutatma Chowk andCarnac Bunder.
In 2011, the MMRDA unveiled plans for an extendedColaba-Bandra-SEEPZ metro line. According to its earlier plans, a 20 km (12.43 mi)Colaba-to-Bandra metro line was to be constructed, running underground for 10 kilometres (6.21 mi) from Colaba toMahalaxmi, and then on an elevated track from Mahalaxmi to Bandra. However, the MMRDA decided to increase the ridership on the line by running it out past Bandra toChhatrapati Shivaji Maharaj International Airport. The 33.5-kilometre (20.82 mi)Colaba-Bandra-SEEPZ line will be built at a cost of₹21,000 crore (US$2.5 billion),[17] and will be the city's first underground metro line. It will have 27 stations.[18]
On 27 February 2012, theUnion Government gave in-principle approval to the plan for Line 3. Money for the project is being borrowed fromJapanese International Cooperation Agency (50%), the state government (16%), the central government (14%), and others.[19] In April 2012, the MMRDA announced plans to grant the Mumbai Metro Rail Company increased management autonomy, in an effort to enhance the project's operational efficiency.[20] In July 2012, the MMRDA announced plans to add more metro lines to its existing plan, including a line parallel to theWestern Express Highway fromBandra toDahisar. This line is expected to reduce the passenger load on theWestern Line and vehicle traffic on the highway. Another proposed route, the 30-kilometre (18.64 mi), 28-stationWadala–Kasarvadavali line, received in-principle approval from the state government in 2013.[21] The MMRDA also intends to convert the proposedLokhandwala–SEEPZ–Kanjurmarg monorail route into a metro line.[22] The Mumbai Metro master plan was revised by the MMRDA in 2012, increasing the total length of the proposed network to 160.90 km (99.98 mi).[23] In June 2015, two new lines were proposed. A line fromAndheri West to Dahisar West, and a line from BKC toMankhurd.[24] The following table shows the updated master plan unveiled by the MMRDA:
| Phase | Line | Name of the corridor | Length (km) |
|---|---|---|---|
| Phase I (2006–2011) | 1 | Versova – Andheri – Ghatkopar | 11.07 |
| 2 | Bandra – Kurla – Mankhurd | 13.37 | |
| 3 | Colaba – Bandra – Charkop | 38.24 | |
| Phase II (2011–2016) | 4 | Charkop – Dahisar | 7.5 |
| 5 | Ghatkopar – Mulund | 12.4 | |
| Phase III (2016–2021) | 6 | BKC – Kanjur Marg via Airport | 19.5 |
| 7 | Andheri (East) – Dahisar (East) | 16.5 | |
| 8 | Hutatma Chowk – Ghatkopar | 21.8 | |
| 9 | Sewri – Prabhadevi | 3.5 |
On 18 February 2013, the MMRDA signed amemorandum of understanding withTransport for London, thetransit authority inGreater London. The arrangement will facilitate the exchange of information, personnel and technology in the transportation sector.[26][27][28][29]
The revised Mumbai Metro master plan had proposed a line along theThane-Teen Haath Naka-Kapurbavadi-Ghodbunder Road route. The feasibility report concluded that the line was not feasible as most residents of Thane and its neighbouring areas travelled to Mumbai for work daily. On 14 June 2014, Chavan announced that the MMRDA was instead examining a proposal for a metro line along the new proposed route of Wadala-Ghatkopar-Teen Haat Naka route. RITES will prepare the detailed project report and is expected to submit it by August 2014. The preliminary report proposed a 32 km (19.88 mi) line with 29 stations, to be built at an estimated cost of₹22,000 crore.[30] This would be the fourth line of the metro, after the previously proposed Charkop-Dahisar route was merged with the Charkop-Bandra-Mankhurd route to form Line 2.[31]
In May 2015, the MMRDA said that it had begun planning for the Andheri-Dahisar line and Seepz-Kanjurmarg. Both lines are expected to be elevated, although the latter could be constructed underground if a proposal to extend Line 3 to Kanjurmarg is undertaken. DPRs for both lines had been prepared in 2004, along with the master plan, and the MMRDA would now update the DPRs. The agency also intends to construct Line 9 of the metro as an underground corridor fromSewri toWorli. However, planning for the project will only begun after the construction of the proposedMumbai Trans Harbour Link commences.[32]
In a report on 14 November 2014 about the cancellation of the PPP agreement for Line 2,Mint quoted a senior MMRDA official: "as decided earlier, all future lines of Mumbai Metro will be constructed by the Mumbai Metro Railway Corp. Ltd (MMRCL), a joint venture between the state government and the Union government."[33] On 20 May 2015,Chief MinisterDevendra Fadnavis requested officials to consider constructing the Charkop-Bandra-Dahisar and the Wadala-Thane-Kasarvadavali lines as elevated corridors. Although both corridors had been planned as elevated lines in the Mumbai Metro master plan, the previousCongress-NCP had decided to construct all metro lines underground, after delays and difficulties caused by acquiring land for Line 1. However, Fadnavis believes that the two proposed lines can be constructed quicker and cheaper if they were elevated due to the proposed route of the alignment.[34] The Government plans to implement all future metro lines (except Line 3) as elevated corridors.[35] On 15 June 2015, the MMRDA announced that it would implement Line 2 of the metro in three parts. The Andheri-Dahisar line will have connectivity with the existing Line 1 and the proposedJVLR-Kanjurmarg line.[35]
In June 2015, Fadnavis announced that he would request theDelhi Metro Rail Corporation (DMRC) to assist in the implementation of the Mumbai Metro. He said that he intends to expand the metro system by 109 km (67.73 mi) before the state assembly elections in October 2019.[36][37][38] In July 2015, UPS Madan announced that the State Government formally appointed the DMRC to revise and update the Mumbai Metro master plan. The DMRC will prepare DPRs for the Andheri East to Dahisar East, Jogeshwari to Kanjur Marg, Andheri West to Dahisar West and Bandra Kurla Complex to Mankhurd lines.[39] The Andheri-Dahisar line will have connectivity with the existing Line 1 and the proposed JVLR-Kanjurmarg line.[35] All four lines are proposed to be elevated and constructed as cash contracts. The lines are estimated to cost a total of₹21,000 crore (US$2.5 billion), or about₹350 crore (US$41 million) per km.[24] In addition, the planned Line 3 and Wadala-Ghatkopar-Thane-Kasarvadavli line of the metro would also be constructed.[39]
Fadnavis announced on 8 April 2017 that the government was considering a circular metro loop line along the Kalyan-Dombivli-Taloja route. The proposed 15 km (9.32 mi) line would linkKalyan andShil Phata with 13 stations, bring metro connectivity toKalyan (East),Dombivli,Ambarnath andDiva.[40][41]
The Mumbai Metro resumed services for general public on 19 October 2020, after being shut down since March 2020 due to theCOVID-19 pandemic.[42][43]
The project has faced significant and costly legal challenges.[44] In 2018, protestors rallied to protect trees that were to be chopped down as part of construction plans. The central government first proposed the construction of a metro station at Aarey Milk colony.[45] The protest resulted in several arrests.[46] Protests again flared in 2022.[47]
The Blue Line connects Versova in the Western Suburbs to Ghatkopar in the Central Suburbs, covering a distance of 11.4 kilometres (7.1 mi).[48] It is fully elevated, and consists of 12 stations.[48] Work on theVersova-Andheri-Ghatkopar corridor, a part of Phase I, began on 8 February 2008. A crucial bridge on the project was completed at the end of 2012.[49] The line opened for service on 8 June 2014.[50]
This corridor is being executed in two phases. Prime MinisterNarendra Modi launched phase 2A in January 2023.[51] The 18.589 km (11.551 mi)[52] long 2A corridor was executed byDMRC on behalf of MMRDA. The corridor has 17 stations (Dahisar (East) toD N Nagar), and cost₹6,410 crore (equivalent to₹90 billion or US$1.06 billion in 2023). The line had been partially operational since 2 April 2022 and became fully operational from 19 January 2023.
The 2B line will be 23.643 km (14.691 mi) long, and is estimated to cost₹109.7 billion (equivalent to₹150 billion or US$1.82 billion in 2023), including land acquisition cost of₹1,274 crore (equivalent to₹18 billion or US$211.38 million in 2023). This section will have 22 stations (D N Nagar toMandale), work on which began in mid 2018.[53]
A fully underground section of the metro, Line 3 is 33.50 km (20.82 mi) long, and has 27 stations.[54] The line connects theCuffe Parade business district in thesouth of Mumbai withSEEPZ andAarey in the north.[55] It also passes through the Domestic and International terminals of Mumbai Airport, for which the airport operator (GVK) has promised an equity infusion of₹777 crore (equivalent to₹12 billion or US$138.69 million in 2023).
The cost of this corridor was estimated at₹23,136 crore (equivalent to₹320 billion or US$3.84 billion in 2023).[56][57] The original deadline for the project was 2016, but it was extended due to several delays including COVID.[58][59] A section of the corridor from Aarey Colony to BKC was opened on 5 October 2024.[60][61] This section cost ₹14,120 crore, and consists of 10 stations in a 12.44 km (7.73 mi) stretch. The stretch from BKC toAcharya Atre Chowk, consisting of six stations was opened on 10 May 2025.[62] The remaining 10.99 km long final stretch from Acharya Atre Chowk toCuffe Parade was opened on 8 October 2025.
The line has interchanges with theBlue Line 1 atMarol Naka, under-constructionPink Line 6 atAarey JVLR, under-constructionRed Line 7A and proposedGold Line 8 at CSMI Airport T-2, under-constructionYellow Line 2B atBKC,Central Line & proposedGreen Line 11 atChhatrapati Shivaji Maharaj Terminus,Mumbai Monorail at Mahalaxmi (Sant Gadge Maharaj Chowk) andWestern Line atDadar,Mahalaxmi,Mumbai Central,Grant Road andChurchgate.
The 60.409 km (37.536 mi) long Mira Bhayandar-Gaimukh-Kasarvadavali-Wadala connection will be fully elevated and have 38 stations. During the construction, this main line was divided into 3 smaller lines - Line 4 (Kasarvadavali toBhakti Park (Wadala)), Line 4A (Kasarvadavali toGaimukh), and the northwestern extension Line 10 (Gaimukh toShivaji Chowk (Mira Road)). After giving proposed southern extension Line 11 from MMRDA to MMRC, there was a new, more central alignment announced to be a spur line fromAnik Nagar Bus Depot toGateway of India via Byculla.
MMRCL has also proposed an extension of this line toDharavi, providing a connection with the Aqua line under the Dharavi Multi Modal Transport Hub (MMTH) Project. The extension contains 2 stations, including another station inSion.
Construction of Line 4 started in October 2018 while the construction of Line 4A started in September 2019. Meanwhile, the proposed Line 10 is currently under environmental review. Line 11 started construction at Zakaria Bunder Rd, but is on hold now, while other sections are still undergoing soil testing. 34 of the 38 elevated stations of the main line are under construction. In addition, the proposed new spur Line 11 has 15 stations of which 13 are proposed to be underground and the remaining 2 are elevated.[63]
The 45.70 km (28.40 mi)-long Thane-Bhiwandi-Kalyan-Taloja line will have 34 stations. During construction, the line was divided into 2 smaller lines - Line 5 (Kapurbawdi toKalyan APMC) and Line 12 (Kalyan APMC toTaloja). Construction of Line 5 began in February 2020. However, the section from Bhiwandi to Kalyan APMC was put on hold by the State Government. Meanwhile, the construction of Line 12 started in March 2020. The line majorly elevated except for a small underground section in Bhiwandi. The line has a total of 34 stations of which 33 stations are elevated while the station in Bhiwandi is set to be the only underground station in the line.
The line was approved by Chief Minister Devendra Fadnavis on 19 October 2016. The 12.811 km (7.960 mi) Thane – Bhiwandi section is under construction. Bhiwandi – Kalyan is on-hold (route modification in progress).[64] The corridor is being constructucted byAfcons in one package from Kalyan to Bhiwandi including 7 stations.
The 14.47 km (8.99 mi) long Lokhandwala-Jogeshwari-Vikhroli-Kanjur Marg Metro-VI corridor will have 13 stations and cost ₹6,672 crore. It will be an elevated corridor. It will connectLokhandwala Complex in Andheri in the western suburbs toVikhroli andKanjur Marg in the eastern suburbs. The stations include Lokhandwala Complex, Adarsh Nagar, Momin Nagar, JVLR, Shyam Nagar, Mahakali Caves, SEEPZ Village, Saki Vihar Road, Ram Baug, Powai Lake, IIT Powai, Kanjur Marg (West), Vikhroli-Eastern Express Highway.
Metro 6 will provide interchange with Metro 2 at Infinity Mall in Andheri, with Metro 3 at SEEPZ, with Metro 4 and the Mumbai Suburban Railway at Jogeshwari and Kanjur Marg, and with Metro 7 at JVLR.[65]
The line was approved by Chief MinisterDevendra Fadnavis on 19 October 2016.[66][67] The MMRDA issued a tender to conduct a detailed aerial mapping survey of the alignment in April 2017. Authorities will also be able to determine the location of trees along the alignment accuracy of up to 10 cm utilizing a differential GPS (DGPS), while a digital aerial triangulation system will help determine the types of trees, their heights and diameters.[68]
This corridor is 31.045 km (19.290 mi) long Mira Bhayandar-Dahisar (East)-Gundavali-Chhatrapati Shivaji Maharaj International Airport corridor will have 23 stations. During construction the line was divided into 3 smaller lines - Line 7 (Dahisar (East) toGundavali), Line 7A (Gundavali toChhatrapati Shivaji Maharaj International Airport - T2), and Line 9 (Subhash Chandra Bose Stadium toDahisar (East)). Construction of Line 7 began in August 2016, meanwhile Line 7A and Line 9 started their construction in March 2020. The line is majorly elevated with the Airport section being the only section underground. There are a total of 22 stations in the line of which 21 are elevated and 1 underground.
A section of the line from Dahisar East to Aarey (along with the section of Yellow Line from Dahanukarwadi to Dahisar (East)) was opened on 2 April 2022, by the then CMUddhav Thackeray. The next section of the line (along with the final section of Yellow Line 2A from Dahanukarwadi to Andheri (West)) was inaugurated on 19 January 2023 by Prime MinisterNarendra Modi.
This is a proposed metro line between theChhatrapati Shivaji Maharaj International Airport and the under constructionNavi Mumbai International Airport.[69] It will connect Mumbai airport to upcoming Navi Mumbai airport and its length would be approx 32 km. The corridor was initially to be executed by MMRDA, however, as per a government resolution (GR), the City & Industrial Development Corporation (CIDCO) has been appointed as the nodal agency to execute it under a PPP Model.
It's expected to cost ₹15,000 crore and finish construction by October 2026. The line has an anticipated daily ridership of 3 lakh.[70]
It is a proposed metro project to connectMira Road withVirar. The project length is 23 km (14 mi) and the estimated cost of the project is ₹6,900 crore.
It is an approved metro project to connectKanjur Marg toAmbarnath-Badlapur. It will have an intersection at Kanjurmarg with Line 6, the Pink Line. This project is now at the DPR stage. The project length is 45 km (28 mi) and the estimated cost of the project is ₹13,500 crore.
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Lines on the Mumbai Metro are currently identified by numbers. In March 2016, MMRDA Metropolitan Commissioner, U.P.S. Madan, announced that all lines on the system would be colour-coded after more lines are opened.
| Operational Lines | |||||||
|---|---|---|---|---|---|---|---|
| No. | Line Name | Number | Terminals | Stations | Distance (km) | Opening Date | |
| 1 | Blue | 1 | Versova | Ghatkopar | 12 | 11.40 km (7.08 mi) | 8 June 2014 |
| 2 | Yellow | 2A | Dahisar (East) | Dahanukarwadi | 9 | 9.8 km (6.1 mi) | 2 April 2022 |
| Dahanukarwadi | Andheri (West) | 8 | 8.8 km (5.5 mi) | 19 January 2023 | |||
| 3 | Aqua | 3 | Aarey JVLR | Bandra Kurla Complex | 10 | 12.69 km (7.89 mi) | 7 October 2024 |
| Bandra Kurla Complex | Acharya Atre Chowk | 6 | 9.77 km (6.07 mi) | 9 May 2025 | |||
| Acharya Atre Chowk | Cuffe Parade | 11 | 10.99 km (6.83 mi) | 9 October 2025 | |||
| 4 | Red | 7 | Dahisar (East) | Aarey | 10 | 10.7 km (6.6 mi) | 2 April 2022 |
| Aarey | Gundavali | 4 | 5.8 km (3.6 mi) | 19 January 2023 | |||
| 70 | 79.95 km (49.68 mi) | ||||||
| Under Construction Lines | |||||||
| No. | Line Name | Number | Terminals | Stations | Distance (km) | Opening Date | |
| 1 | Yellow | 2B | Andheri (West) | Saraswat Nagar | 6 | 23.6 km (14.7 mi) | April 2026 |
| Saraswat Nagar | Diamond Garden | 9 | December 2027 | ||||
| Diamond Garden | Mandale | 5 | December 2025 | ||||
| 2 | Green | 4A | Gaimukh | Kasarvadavali | 2 | 2.88 km (1.79 mi) | December 2025 |
| 4 | Kasarvadavali | Cadbury Junction | 8 | 32.32 km (20.08 mi) | December 2025 | ||
| Cadbury Junction | Gandhi Nagar (Kanjurmarg) | 11 | December 2026 | ||||
| Gandhi Nagar (Kanjurmarg) | Bhakti Park (Wadala) | 13 | November 2027 | ||||
| 3 | Orange | 5 | Kapurbawdi | Bhiwandi | 8 | 12.81 km (7.96 mi) | December 2027 |
| 12 | Kalyan APMC | Taloja | 17 | 20.75 km (12.89 mi) | December 2028 | ||
| 4 | Pink | 6 | Swami Samarth Nagar (Lokhandwala) | Vikhroli EEH | 13 | 14.47 km (8.99 mi) | December 2027 |
| 5 | Red | 7A | Gundavali | Chhatrapati Shivaji Maharaj International Airport - T2 | 2 | 3.17 km (1.97 mi) | December 2027 |
| 9 | Subhash Chandra Bose Stadium | Kashigaon | 4 | 11.38 km (7.07 mi) | December 2027 | ||
| Kashigaon | Dahisar (East) | 4 | 15 December 2025 | ||||
| 102 | 121.38 km (75.42 mi) | ||||||
| Proposed Lines | |||||||
| No. | Line Name | Number | Terminals | Stations | Distance (km) | Opening Date | |
| 1 | Green | 10 | Gaimukh | Shivaji Chowk (Mira Road) | 8 | 9.2 km (5.7 mi) | Awaiting environment clearance |
| 11 | Bhakti Park (Wadala) | Chhatrapati Shivaji Maharaj Terminus | 15 | 18 km (11 mi) | Undergoing soil testing | ||
| 2 | Orange | 5 | Bhiwandi | Kalyan APMC | 9 | 10.72 km (6.66 mi) | DPR undergoing modifications |
| 3 | Gold | 8 | Chhatrapati Shivaji Maharaj International Airport - T2 | Navi Mumbai International Airport | 20 | 35 km (22 mi) | DPR submitted |
| 4 | Purple | 13 | Shivaji Chowk (Mira Road) | Virar | 20 | 23 km (14 mi) | DPR in preparation |
| 5 | Magenta | 14 | Vikhroli EEH | Badlapur | 40 | 45 km (28 mi) | DPR submitted |
| 112 | 140.92 km (87.56 mi) | ||||||
Reliance Infrastructure consulted a number of major internationalrolling stock builders to provide the train fleet for the Mumbai Metro. Bidders for the contract included established metro-vehicle manufacturers such asKawasaki,Alstom,Siemens andBombardier, butCRRC Nanjing Puzhen of China was ultimately chosen to supply rolling stock for ₹600 crore.[71][72] In May 2008, CSR Nanjing completed the first 16 trains, each comprising four cars.[71] The first ten trains were reported to be ready for operation in January 2013.[73]
The coaches arefire retardant,[74]air-conditioned and designed to reduce noise and vibration, and will feature both highseating capacity and ample space for standing passengers. They will be outfitted with a number of features for safety and convenience, includingLCD screens, 3D route maps, first-aid kits, wheelchair facilities, fire-fighting equipment and intercom systems permitting communication with the train driver. Each coach will furthermore feature ablack box to assist in accident investigations.[75] The trains will be capable of carrying over 1,100 passengers in a four-car unit, with each carriage being approximately 3.2 metres (10 ft 6 in) wide.[76]
In 2018, theMumbai Metro Rail Corporation choseAlstom to supply 31 eight car trains forAqua line (line 3). These trains are capable of driverless operations and were built at Alstom's factory inSri City,Andhra Pradesh.[77]
In 2018,Mumbai Metropolitan Region Development Authority which will operate all metro lines except Line 3, awarded a tender toBharat Earth Movers Ltd. (BEML) to supply 63 trainsets (378 coaches) forYellow Line (Line 2) andRed Line (Line 7) at a cost of ₹3,015 crores ($427.33 million). Capable of driverless operations, the trains are manufactured at BEML's factory inBengaluru and the first train set for the Yellow Line arrived inMumbai on 27 January 2021, and will continue to receive the rest of the sets until 2022.[78][79] On 17 January 2021,Bombardier won the tender to supply 234 driverless coaches for theGreen Line (Line 4) of six-car configuration for Mumbai metro. However, the contract was cancelled in March 2022 due to delays and uncertainties of the project.[80][81] In August 2025, the MMRDA awarded a contract toL&T to supply 39 trainsets of 6 cars each for the Green Line (Line 4), to be manufactured by Alstom as part of an integrated systems package.[82] In the absence of a depot and delay in procuring rolling stock, the MMRDA also decided to temporarily transport eight idle trains from the Mandale depot on the Yellow Line to the Green Line to commence trials on a section of the line.[83]
In 2025, the MMRDA awarded two contracts toTitagarh Rail Systems for 108 coaches and 132 coaches to be delivered for theOrange Line andPink Line respectively.[84][85]
Mumbai Metro runs on alternating current (AC) which is typically more labour and cost-intensive. MMRDA joint project director Dilip Kawathkar stated that AC power was chosen "after a proper study by a team of experts" which found that the AC model was "a better option". Bidders for Line 3 were reportedly in favour of the DC model. Experts believe that the decision to use AC will escalate the project cost of underground lines by 15%, since more digging is required for the rail to work on AC.[86]
The Mumbai Metro will feature an advancedsignalling system, including an automatictrain protection system (ATPS) and automated signalling to control train movements on the 11-kilometre (6.8 mi) Line 1. A four-minute service interval is anticipated on the route.[87]
Siemens will supply the signalling systems required for the project, whileThales Group will supply the Metro's communication systems. The network's signalling and train control systems will be based on LZB 700M technology.[88]
In October 2025 after the Aqua line became fully operational the avg daily ridership on all Mumbai Metro lines is approximately 900,000 per day, with Blue line at about 460,000, followed by Yellow plus Red at 260,000 and Aqua at 160,000 daily avg ridership.On 21 October 2019, 1,960 days (approx. 5 years) after Mumbai Metro Line 1's inception, the system crossed 600 million passengers, with an average daily ridership of around 450,000 passengers.[89] Opening of subsequent lines has relieved pressure on theMumbai Suburban Railway, which had become over congested and unsafe due to open doors, unlike the Metro which has closed door air-conditioned coaches.[90] Furthermore, the Metro has been credited for sustainability due to reduced carbon emissions by employing energy saving methods like regenerative braking systems and cutting down traffic congestion, besides eco-friendly construction methods.[91]
Furthermore, the Mumbai Metro has allowed bicycles with special racks for commuters at no extra charge onRed andYellow lines.[92] However, onAqua line, they are currently not allowed for crowd rush during peak hours, although officials plan to allow it on completion of the line, while onBlue line, foldable bicycles are allowed.[93]
Publictransportation in Maharashtra | |
|---|---|
| Metro lines |
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| Other urban rail | |
| Commuter/intercity | |
| BRT |
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| Urban bus |
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| Major terminals |
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| Misc. transport |
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| Suburban rail |
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|---|---|---|---|---|---|---|---|---|---|
| Rapid transit |
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| Monorail |
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| Metrolite |
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| Tram |
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Rapid transit in Asia | |
|---|---|
 Armenia | |
 Azerbaijan | |
 Bangladesh | |
 China (PRC) |
|
 Georgia | |
 India | |
 Indonesia | |
 Iran | |
 Israel | |
 Japan | |
 Kazakhstan | |
 Mongolia | |
 North Korea | |
 Malaysia | |
 Pakistan | |
 Philippines | |
 Qatar | |
 Russia | |
 Saudi Arabia | |
 Singapore | |
 South Korea | |
 Taiwan (ROC) | |
 Thailand | |
 Turkey | |
 United Arab Emirates | |
 Uzbekistan | |
 Vietnam | |
* Under construction. | |
