Chennai Metro Rail Limited conducts trial Run up to Vadapalani

Chennai Metro Rail Limited (CMRL) on Sunday achieved another significant milestone in the Phase–2 Corridor–4 (C4) project with the successful trial run of train from Porur Junction to Vadapalani on the Down Line of 5.5 km length

This is part of CMRl’s 118.9 km phase II project with three corridors corridor 3 (Madhavaram to SIPCOT), corridor 4 (Poonamallee to Light House) and corridor 5 (Madhavaram to Sholinganallur).

The trial run marks completion of the viaduct including track laying and electrification of the down line from Porur Junction to Kodambakkam Power House and the running of the first train on this new line.

Following successful down-line trial run, up-line trial runs from Kodambakkam Power House to Porur Junction are scheduled to be conducted within the next few days, says a release.

CMRL had completed trial runs from Poonamallee Bypass to Porur Junction, covering 9.1 km with 10 stations in June 2025. Thereafter, station works and other system works have been done and the process of obtaining Speed Certificate from Railway Board has been initiated immediately thereafter.

Though the next stage from Porur to Vadapalani section has been planned for completion by June 2026 due to challenging double decker stretches of nearly 4 km, considering that commissioning of stretch from Poonamalee Bypass to Porur Junction alone would not provide commuters direct access to Phase 1 metro lines, it was felt that ridership would not be high enough and the new line would not fully benefit the passengers.

CMRL decided to prioritise the viaduct for C4 line in the double decker stretch and extend the train services from Porur Junction up to Vadapalani, without having any intermediate stops as an interim measure for the benefit of the commuters.

The remaining stations in Porur Junction to Kodambakkam stretch would be commissioned as they get ready, before June 2026, says the release.

Published on January 11, 2026