Photo: Faraz Sualeh, Wikimedia Commons, CC0. View of Taloja. This is an illustrative photo and does not show any part of the metro line.
Quick answer: Metro Line 12 is under construction and is not open to passengers. It is an MMRDA elevated line from Kalyan to Taloja. Its Navi Mumbai link is at the Taloja end, where MMRDA lists an interchange with the existing Navi Mumbai Metro Line 1 at Amandoot. It does not serve Vashi, Nerul or Airoli. MMRDA’s project page gives no passenger opening date. An MMRDA post from December 2025 gave a completion target of May 2028. Official documents also disagree on the line’s length, station count and cost, which are explained below.
This is a researched guide and not an official notice. This site is not affiliated with MMRDA. Dates and figures change, so check MMRDA before you plan around them.
Current status
| Question | Answer |
|---|---|
| Is it open? | No. It is under construction |
| Passenger opening date | Not given on MMRDA’s project page |
| Completion target | May 2028, from an MMRDA post of December 2025. This is a construction target and not a passenger opening date |
| Latest construction figures | Dated 31 August 2026 on MMRDA’s project page |
| This guide checked | 14 November 2026 |
Route and stations
MMRDA’s project overview describes the line this way. These figures are the configuration on that page and are not a fully reconciled final design (MMRDA Metro Line 12 page).
| Item | MMRDA project overview |
|---|---|
| Route | Kalyan to Taloja through Dombivli MIDC, Kalyan Growth Centre, Wadavli, Pisarve, Taloja and Amandoot |
| Length and stations | 23.57 km, fully elevated, 19 stations |
| Depot | Nilje, about 31 hectares |
| Interchanges | Kalyan (Metro Line 5), Hedutane (Metro Line 14), Amandoot (Navi Mumbai Metro Line 1) |
| Projected daily ridership in 2031 | 2.62 lakh passengers |
The overview gives the number of stations but not their names. MMRDA’s 2019 detailed project report includes an index plan and station list for a 17 station version of the line (2019 project report). Treat the names in that report as provisional, because the station count has since changed on the overview page and spellings vary between documents.
The Navi Mumbai connection
Line 12 does not serve Vashi, Nerul, Seawoods, Kopar Khairane, Ghansoli or Airoli. Its Navi Mumbai side is the Taloja end, near Pisarve and Amandoot. Navi Mumbai Metro Line 1, which runs from CBD Belapur to Pendhar, already has an Amandoot station. Our Navi Mumbai Metro route map lists the Line 1 stations and our Navi Mumbai Metro fare guide covers tickets.
| Connection | Status |
|---|---|
| Amandoot, Navi Mumbai Metro Line 1 | Planned interchange named by MMRDA. Line 12 is not open, so it cannot be used yet |
| Kalyan, Metro Line 5 | Planned. Line 5 is also under construction |
| Hedutane, Metro Line 14 | Planned. Listed by MMRDA as an interchange |
| Navi Mumbai International Airport | No direct metro service. MMRDA describes the corridor as improving connectivity to the airport. A Pendhar to airport extension is a separate approved plan, covered in our Navi Mumbai Metro Line 2 guide |
Once Line 12 and its interchange facilities are commissioned, passengers are expected to connect with the existing Navi Mumbai Metro Line 1 at Amandoot. MMRDA has not published details of a through train, a common ticket or a transfer time, so do not assume any of them.
The people most likely to gain are those travelling between Kharghar or Taloja and Kalyan or Dombivli. Our Kharghar area guide and Taloja area guide cover those areas. MMRDA says Line 12 will cut current travel time by anything between 50% and 75% depending on road conditions. That is a general claim and not a timed journey between two stations.
Construction progress
MMRDA’s page lists these figures as on 31 August 2026.
| Activity | Progress |
|---|---|
| Pile works | 37.12% |
| Pile cap works | 31.54% |
| Pier works | 25.88% |
| Pier cap works (erection) | 26.84% |
| U girder works (erection) | 18.75% |
These measure separate construction activities. Do not average them or read them as the percentage of the whole project that is complete. The page itself was updated on 13 November 2026, but a recently updated web page does not necessarily contain newly measured progress. The construction figures are dated 31 August 2026.
- December 2025 update: MMRDA said it had launched the 100th U girder near Dombivli MIDC station on Shilphata Road (MMRDA post on X).
- Alignment: the same post says the line runs parallel to the Kalyan to Shilphata to Taloja corridor and shares about 7 km with the MSRDC flyover, with a 75 m steel span at the Taloja road overbridge.
- Land: the post says land acquisition and rehabilitation were under way near Patripul and Amandoot at that time.
Opening and completion target
| Item | Detail |
|---|---|
| Passenger opening date | Not given on MMRDA’s project page |
| Previously stated completion target | May 2028, attributed to MMRDA’s December 2025 update |
Construction completion does not set the date when passengers can board, because testing and safety certification follow construction. Read May 2028 as the target stated in December 2025 and not as an opening date. A later announcement may have replaced it.
Why the cost figures differ
MMRDA’s documents give two different pictures of the line.
| Source | Length and stations | Cost |
|---|---|---|
| MMRDA Line 12 project overview, figures as on 31 August 2026 | 23.57 km, 19 stations | Rs 5,865 crore (project completion cost) |
| MMRDA loan notice of 30 March 2026 (notice and document) | 20.756 km plus 0.5 km depot connection, 17 stations | Rs 11,516 crore plus interest during construction, with a Rs 7,800 crore loan requirement |
The loan notice covers Line 12 and Metro Line 10 together, and it uses the shorter 17 station route that the 2019 project report described. The overview page uses the longer 19 station route and a lower cost. These documents are not fully consistent, and the scope and revision basis behind each figure are not explained on either page. This guide gives each figure with its source and does not choose between them. The difference is therefore not simply old figures against new ones, because a document issued in March 2026 still carries the 2019 route figures.
Metro Line 12A in brief
On 27 October 2026 the state Cabinet Committee on Infrastructure approved Metro Line 12A, according to the Hindustan Times and the Indian Express (Hindustan Times and Indian Express).
- Route: 18.40 km, elevated, 12 stations, from Manpada and Katai Naka to Taloja via Kalyan Phata.
- Cost: Rs 13,856.37 crore, with a deadline of three and a half years set by the state.
- Interchanges proposed: Line 12 and a bullet train link at Katai Naka, Line 14 between Katai Naka and Kalyan Phata, and Navi Mumbai Metro Line 1 at Amandoot.
- Status: the approval reports reviewed do not give a verified construction start date.
Line 12A is identified separately in the approval reports. Its relationship with Line 12’s implementation and alignment should be read against the latest MMRDA project documents.
Getting between Navi Mumbai and Kalyan today
Neither line is open. For trips by train, see our Mumbai local train guide for Navi Mumbai, which covers the harbour, trans-harbour and Central line options and the interchanges between them, and our Panvel railway station guide for the Panvel side. For Thane side projects such as Metro Lines 4 and 5, see our guide to Thane metro and road projects.
How this guide was checked
- Line 12 route, length, stations, cost, interchanges and the 31 August 2026 progress figures come from MMRDA’s project overview.
- The 30 March 2026 cost, loan and route figures come from MMRDA’s loan notice document.
- The May 2028 target comes from MMRDA’s December 2025 post on X.
- Line 12A details come from the Hindustan Times and Indian Express reports of 28 October 2026.
- Where documents disagree, each figure is given with its source. Checked on 14 November 2026.
Frequently Asked Questions
Does Metro Line 12 reach Vashi, Nerul or Airoli?
No. It runs from Kalyan to Taloja. On the Navi Mumbai side it is at the Taloja end, with an interchange planned at Amandoot on Navi Mumbai Metro Line 1.
When will Metro Line 12 open?
MMRDA’s project page gives no passenger opening date. A December 2025 MMRDA post gave a completion target of May 2028. That is a construction target and not an opening date, and a later announcement may have changed it.
How long is Metro Line 12 and how many stations does it have?
It depends on the document. MMRDA’s project overview lists 23.57 km and 19 stations. MMRDA’s March 2026 loan notice lists 20.756 km plus a 0.5 km depot connection and 17 stations.
What does Metro Line 12 cost?
MMRDA’s project overview lists Rs 5,865 crore. MMRDA’s March 2026 loan notice gives an estimated Rs 11,516 crore plus interest during construction, with a Rs 7,800 crore loan requirement. The two documents are not fully consistent, so both are shown with their sources.
What is the difference between Line 12 and Line 12A?
Line 12 runs from Kalyan to Taloja and is under construction. Line 12A is a separately approved 18.40 km line from Manpada and Katai Naka to Taloja via Kalyan Phata. The approval reports reviewed give no verified construction start date, and its relationship with Line 12 should be read against MMRDA’s latest project documents.
Can I take a metro to the airport?
Not today. MMRDA describes Line 12 as improving connectivity to the airport, but no metro reaches it yet. Navi Mumbai Metro Line 2 from Pendhar to the airport is approved and not built.
Sources
| Point | Source |
|---|---|
| Line 12 route, stations, cost, interchanges, progress | MMRDA Metro Line 12 |
| March 2026 cost, loan and route figures | MMRDA loan notice and notice document |
| Completion target, girder milestone, alignment details | MMRDA post on X, December 2025 |
| 2019 length and station list | Detailed project report |
| Metro Line 12A approval | Hindustan Times and Indian Express, 28 October 2026 |
Checked 14 November 2026. Costs, progress and dates change, so confirm on MMRDA’s pages.
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