Chennai Metro Poonamallee-Vadapalani stretch inaugurated
Chennai Metro's 15 km Poonamallee-Vadapalani stretch was inaugurated on 11 October 2026 with 11 elevated stations. What changed and what to check before you ride.
TrainLiveStatus Desk · Updated · 3 min read
The Poonamallee-Vadapalani stretch of Chennai Metro Rail's Phase II was inaugurated on Sunday, 11 October 2026. Prime Minister Narendra Modi and Tamil Nadu chief minister Vijay flagged off the services and then rode a train together. The new section runs about 15 km and has 11 elevated stations.
What changed
According to Hindustan Times, the stretch cost around Rs 4,900 crore and includes a unique 3.7 km double-decker structure. Its signalling is designed to support driverless operations.
The stretch is part of Corridor 4 of Phase II. The source describes it as elevated, with 11 stations above ground.
Who it affects
The stretch is aimed at commuters who travel between Chennai's western suburbs and the city centre. Hindustan Times reports that it will significantly reduce daily travel time for these commuters and improve connectivity between the western suburbs and the city.
The stretch runs between Poonamallee and Vadapalani. In our data, Vadapalani is a station on the existing Green Line, which runs from Chennai Central to St. Thomas Mount, and Chennai Central is an interchange with the Blue Line. Our Chennai Metro pages carry the station and line details we hold for the existing network.
Train details and timings
The source reports the stretch length, station count, cost and structure. It does not list the new station names, the frequency, the first and last trains or the fares. Do not assume those details until you check them on the operator's timetable, because they may change in the first weeks.
| Item | What the source says | Where to check |
|---|---|---|
| Stretch | Poonamallee to Vadapalani, Corridor 4, Phase II | Chennai Metro Rail website |
| Length and stations | About 15 km, 11 elevated stations | Operator station list |
| Inaugurated | Sunday, 11 October 2026 | Hindustan Times report |
| Existing Chennai Metro lines | Official span 05:00 to 23:00 every day, per our timetable data (CMRL timetable of July 2026) | Chennai Green Line page |
The service hours above come from our own data for the existing network, not from the new stretch. Check the Green Line page before you travel, because peak hours differ on Sundays.
What travellers should do
- Check the new stretch's timetable on the Chennai Metro Rail website before your first ride, since the source gives no frequency.
- Confirm the station names you need. The source does not list them, so match them to the operator's list rather than to a guess.
- Plan the interchange at Chennai Central if your trip needs the Blue Line. Our Chennai Central metro station page covers the link.
- Allow extra time on the first days. New lines often see crowds and changing timings in the first weeks.
If you are heading to a mainline train from the western suburbs, leave a buffer and check the Chennai Central live board or the trip planner for your train. The source does not say which mainline station the new stretch connects to, so do not assume a link until the operator confirms it.
Context: the wider visit
The metro opening was part of a wider visit. According to Hindustan Times, the Prime Minister was also due to inaugurate and lay the foundation stones for development projects worth over Rs 13,000 crore, covering highways, railways, ports, petroleum and education. Those projects are separate from the metro stretch, and their timings are not covered in this article.
Chennai Metro in one view
Our Chennai Metro network page (under Metro on the site) is the best place to start when you compare lines. The Blue Line runs from Wimco Nagar Depot to Chennai International Airport, and the Green Line runs from Chennai Central to St. Thomas Mount. Chennai Central and Arignar Anna Alandur are the two interchanges on those lines in our data.
For trips that combine a metro ride with a train, the weekend trips from Chennai by train guide is a useful reference for the mainline side.
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Frequently asked questions
When was the Poonamallee-Vadapalani metro stretch inaugurated?
According to Hindustan Times, the stretch was inaugurated on Sunday, 11 October 2026, when Prime Minister Narendra Modi and Tamil Nadu chief minister Vijay flagged off the services. The source does not say when regular passenger service begins. Check the operator's website for the latest timetable before you travel.
How long is the new stretch and how many stations does it have?
The source reports about 15 km with 11 elevated stations, forming part of Corridor 4 of Phase II. The source does not list the station names, so check the operator's list before you travel.
Which Chennai line can I use to reach the city centre from Vadapalani?
In our data, Vadapalani is served by the Green Line, which runs between Chennai Central and St. Thomas Mount. Chennai Central is an interchange with the Blue Line, so you can change there for other parts of the city.
Does the new stretch connect to a mainline railway station?
The source does not say which mainline station the stretch connects to, so we cannot confirm one. If you need a mainline train, check the station's location on the operator's map and allow extra time for the walk or change.
Sources
Rules and fares change. Check the official source before you travel. Last reviewed 14 October 2026.
