Mumbai Metro Tracker

Every metro line in the Mumbai region. The unofficial tracker.

Edition of Facts checked Not affiliated with MMRDA

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  • Running
  • Under construction
  • Approved, not started
  • Proposed

Every line

All 21 metro lines in the Mumbai region, from those being built to those only studied. The 8 lines this site tracks in full carry their tenders, funding and latest update, with a link to their own tracker.

Under construction 8

Line 2B

D N Nagar to Mandale

Stage
Mandale to Chembur open (six stations). Chembur to D N Nagar under construction: piers 99%, U and I girders 90% (MMRDA, 31 Aug 2026).
Target
2027 for Diamond Garden to Saraswat Nagar; a target, not an announced date
Authority
Mumbai Metropolitan Region Development Authority (MMRDA)
Cost
₹10,986 crore, project completion cost, including state taxes, 7.5% a year escalation and interest during construction
Funding
MMRDA for the civil works; the Asian Development Bank for the rest, as planned in 2016
Tenders
8 traced; latest award CA-249 to Colossus Infra Projects, ₹33.95 cr, Jul 2024
Latest
13 Aug 2026: Phase IA opens: Chembur

Open the Line 2B trackerTendersStationsStatus, answered

Line 4

Wadala to Thane and Gaimukh

Stage
First stretch, Gaimukh to Cadbury Junction, built and in trial runs; RDSO certification on 2 Jun 2026; CMRS inspected the Gaimukh pit line and its report is awaited. The rest of the line is under construction.
Target
Dec 2026 for Phase 1; a target, not an announced date
Authority
Mumbai Metropolitan Region Development Authority (MMRDA)
Cost
₹14,549 crore, project base cost of Line 4, including taxes and duties
Funding
KfW (Germany) loans of EUR 545 million for the systems of Lines 4 and 4A; MMRDA funds the rest
Tenders
27 traced; latest award CA-298 to Larsen & Toubro, ₹1,260 cr, 24 Dec 2025
Latest
14 Oct 2026: First of 39 driverless trains unveiled

Open the Line 4 trackerTendersStationsStatus, answered

Line 5

Thane to Kalyan

Stage
Phase 1 built and preparing for the CMRS safety inspection; overhead wires energised from 7 Sep 2026. Phase 2 and Phase 5A approved, not started.
Target
Dec 2026 for Phase 1; a target, not an announced date
Authority
Mumbai Metropolitan Region Development Authority (MMRDA)
Cost
₹18,130 crore, estimated cost of the expanded corridor, Phases 1, 2 and 5A
Funding
AIIB and OPEC Fund loans for the systems; MMRDA funds the rest
Tenders
19 traced; latest award CA-241 to Titagarh Rail Systems, ₹2,481 cr, 31 Oct 2025
Latest
7 Sep 2026: Overhead wires energised, Kapurbawdi to Dhamankar Naka

Open the Line 5 trackerTendersStationsStatus, answered

Line 6

Swami Samarth Nagar to Vikhroli

Stage
Under construction: piers 97.88%, U girders 93.40% erected, station works 87.35% (MMRDA, 31 Aug 2026). No stretch is open.
Target
2027 for the whole line; a target, not an announced date
Authority
Mumbai Metropolitan Region Development Authority (MMRDA)
Cost
₹6,716 crore, project completion cost
Funding
MMRDA, with a New Development Bank loan for the trains and systems
Tenders
11 traced; latest award CA-233 (Systems Package 2) to IRCON International, ₹642.44 cr, 18 Jul 2025
Latest
17 Oct 2026: Footbridge tender for Vikhroli and Jogeshwari stations

Open the Line 6 trackerTendersStationsStatus, answered

Line 7A

Andheri (E) to the airport

Stage
Under construction: viaduct and tunnels bored, airport station roof slab 64%, the short mined tunnels (NATM) not started (MMRDA, 31 Aug 2026). Work near Airport Colony is held up by an airport height limit (reported).
Target
2027 for the whole line; a target, not an announced date
Authority
Mumbai Metropolitan Region Development Authority (MMRDA)
Cost
₹6,607 crore, project base cost of Lines 9 and 7A together, including state taxes and 7.5% a year escalation
Funding
Not published for 7A alone
Tenders
4 traced; latest award CA-176 to Leena Powertech-Umesh Brothers JV, Jun 2025
Latest
14 Jul 2025: Second tunnel breakthrough: bored tunnels complete

Open the Line 7A trackerTendersStationsStatus, answered

Line 12

Kalyan to Taloja

Stage
Civil construction (viaduct and stations). Systems and rolling stock tender stage.
Target
May 2028; a target, not an announced date
Authority
Mumbai Metropolitan Region Development Authority (MMRDA)
Cost
₹11,516 crore, estimated project cost, excluding interest during construction
Funding
MMRDA is seeking a Rs 7,800 crore loan
Tenders
7 traced; latest award CA-240 to Gawar Constructions Ltd, ₹1,971.77 cr, 27 Mar 2024
Latest
31 Aug 2026: Progress snapshot: piles 37%, U-girders 19%

Open the Line 12 trackerTendersStationsStatus, answered

Thane Integral Ring Metro

Stage
Under construction: viaduct contract awarded Dec 2025, test pile May 2026, piling begun Nov 2026 (reported); station contracts not yet awarded
Target
Sep 2029 for the whole ring; a target, not an announced date
Authority
Maharashtra Metro Rail Corporation (MahaMetro)
Cost
₹12,200.1 crore, estimated cost of the project
Funding
Equal equity from the Government of India and the Government of Maharashtra, with part-funding from bilateral agencies
Tenders
12 traced; latest award T1-019/Consul-05/2025 to AECOM India and Nippon Koei India consortium, ₹179.85 cr, Jul 2026

Open the Thane Ring Metro trackerTendersStationsStatus, answered

Approved, not started 5

Line 8

Mumbai airport (CSMIA) to Navi Mumbai airport (NMIA)

Stage
  • Whole line: approved. State government resolution of 27 Jan 2025; CIDCO sent the project report to the state in Oct 2025. A Jan 2026 approval by the state's Cabinet Infrastructure Committee (Rs 22,862 crore) is reported but not checked. Union Cabinet approval pending
Authority
CIDCO (nodal agency since Jan 2025, replacing MMRDA); to be built as a PPP

Line 10

Gaimukh to Shivaji Chowk (Mira Road)

Stage

Line 11

Bandra Terminus and Wadala to Gateway of India

Stage
Authority
Mumbai Metro Rail Corporation (MMRCL)

Line 12A

Manpada to Taloja via Kalyan Phata

Stage
Approved by the state Cabinet Infrastructure Committee on 27 Oct 2026; no tenders yet
Target
Apr 2030; a target, not an announced date
Authority
Mumbai Metropolitan Region Development Authority (MMRDA)
Cost
₹13,856.37 crore, project cost, with 15.62 km of integrated road flyovers
Funding
MMRDA, interest-free subordinate loans from the State, and loans from financial institutions
Latest
27 Oct 2026: Cleared by the state Cabinet Infrastructure Committee

Open the Line 12A trackerStationsStatus, answered

Line 13

Mira-Bhayandar to Virar

Stage

Proposed 2

Running 5

Studied as an idea 1

Network last checked 29 Oct 2026. Routes from MMRDA's alignment files, the Thane ring project's map and OpenStreetMap (Line 3, Navi Mumbai Line 1). A line with no published route is listed but not drawn. Stages are this site's reading of the sources; see the grade on each.

Latest updates

The newest milestones on the lines this site tracks in full, each linked to its report.

  1. Piling beginsThane Integral Ring Metro · @Sunny29223375 on X

  2. Cleared by the state Cabinet Infrastructure CommitteeLine 12A · financialexpress.com

  3. Footbridge tender for Vikhroli and Jogeshwari stationsLine 6 · mahatenders.gov.in

  4. MahaMetro answers Thane on route and treesThane Integral Ring Metro · Free Press Journal

  5. First of 39 driverless trains unveiledLine 4 · Railway Gazette

  6. Soil testing reaches Raila DeviThane Integral Ring Metro · @bodkeitis on X

  7. Trial runs resume, Gaimukh to Cadbury JunctionLine 4 · Free Press Journal

  8. Overhead wires energised, Kapurbawdi to Dhamankar NakaLine 5 · Free Press Journal

  9. Progress snapshot: piles 37%, U-girders 19%Line 12 · MMRDA

  10. Every civil activity shown 100% completeLine 5 · MMRDA

Where the lines meet

Stations where two tracked lines come together, measured between the two published station points.

Kalyan. Lines 12 and 5 both end by the railway junction. Line 5's Kalyan station is planned about 131 m from Line 12's Kalyan.

Kapurbawdi. Line 5 starts at a station built as part of Line 4. Line 4's Kapurbawdi point is 74 m from Line 5's Kapurbawdi.

Kanjurmarg. Line 6 crosses Line 4 on LBS Marg. Line 6's Kanjur Marg (W) point is 161 m from Line 4's Gandhi Nagar.