Prime Minister Narendra Modi will inaugurate the Poonamallee-Vadapalani stretch of Chennai Metro Phase 2 on Sunday, October 11, 2026. Built at a cost of around Rs 4,900 crore, the new corridor is expected to improve connectivity between Chennai’s western suburbs and the city centre.

The 15-km-long stretch has 11 elevated stations and is part of Corridor 4 of Chennai Metro Phase 2, also known as the Yellow Line. The corridor features a 3.7-km double-decker structure and advanced signalling systems designed to support driverless train operations. The new metro service is expected to reduce travel time for commuters and make daily journeys easier.

Full list of 11 stations

The stations on the Poonamallee Bypass-Vadapalani stretch are Poonamallee Bypass, Poonamallee Bus Stand, Poonamallee Government Hospital, Karayanchavadi, Kumananchavadi, Kattupakkam, Iyappanthangal, Thelliyaragaram, Porur Bypass, Porur Junction and Vadapalani. Metro trains will operate in both directions between Poonamallee Bypass and Vadapalani, according to Chennai Metro Rail Limited (CMRL).

The Poonamallee-Vadapalani stretch is expected to improve metro connectivity for people travelling between Chennai’s western suburbs and the city centre. The corridor’s 3.7-km double-decker structure is one of its key features, and it also uses advanced signalling technology designed to support driverless train operations.

Train timings and frequency

Passenger services on the new stretch will begin at 4 PM on Sunday, October 11, and continue until 9 PM. From Monday, October 12, regular metro services will operate from 7 AM to 9 PM in both directions. The last train will depart from both Poonamallee Bypass and Vadapalani stations at 9 PM.

The frequency of metro services will vary by time and day. From Monday to Saturday, trains will run every 10 minutes during peak hours (8 AM to 11 AM and 5 PM to 8 PM), and every 15 minutes during non-peak hours (7 AM to 8 AM, 11 AM to 5 PM and 8 PM to 9 PM). On Sundays and public holidays, trains will run every 15 minutes between 7 AM and 9 PM, with no separate peak-hour frequency.