Chennai Metro Phase II: Poonamallee–Vadapalani Stretch Opens with 11 Stations
The Poonamallee–Vadapalani stretch of Chennai Metro Phase II has been inaugurated. The 14.5-km Corridor 4 section brings western Chennai closer to the existing network through Vadapalani.

Chennai Metro Phase II has reached a major passenger-connectivity milestone with the inauguration of the Poonamallee–Vadapalani stretch. The government’s announcement described the section as approximately 14.5 km long, linking western Chennai with the existing Metro network at Vadapalani.
What has opened
The priority stretch forms part of Corridor 4 and includes 11 stations between Poonamallee Bypass and Vadapalani. The corridor passes through important western suburbs and connects areas such as Poonamallee, Kattupakkam, Iyyappanthangal and Porur with the wider Chennai Metro system.
The stretch was inaugurated on October 11, 2026, during Prime Minister Narendra Modi’s Chennai visit. The programme also included the dedication of other railway and public-infrastructure projects. The opening is significant because commuters from the western side of the city gain a Metro connection towards Vadapalani instead of depending only on road-based travel for the full journey.
What commuters should verify
An inauguration announcement and a normal passenger timetable are not the same thing. Before planning a journey, passengers should check the latest Chennai Metro Rail Limited service notice for operating hours, fare collection, interchange arrangements and the stations open for regular boarding. Construction or system work may continue on the larger Phase II corridors even after a priority stretch opens.
Vadapalani is particularly important because it connects the new western section with Chennai’s existing Metro network. Passengers should check the interchange route and allow additional time during the first days of public operations, when station queues and unfamiliar entry points can slow the journey.
Why the project matters
Chennai Metro Phase II is planned as a much larger network expansion across three corridors. The opening of this priority section gives commuters an early benefit while the remaining works, testing and approvals continue on other parts of the project. It also creates a useful alternative for residents travelling between western neighbourhoods, offices, hospitals and educational areas.
The next practical update for passengers will be the confirmed public timetable and fare information from CMRL. Until then, commuters should rely on the operator’s current notice rather than unofficial maps or launch-event timings.

