Chennai Metro: Koyambedu - Alandur Phase 2 Line Targets March 2027 Opening; Trial Runs Likely in January

Chennai Metro Rail Limited (CMRL) is accelerating construction work on the nearly 15-km Koyambedu–Alandur stretch of Chennai Metro Phase 2, with passenger services targeted to begin by March 2027. The latest update indicates that more than 90% of the elevated viaduct construction has been completed.

According to reports published on November 3, 2026, CMRL aims to complete the remaining viaduct construction and track-laying works by December 2026. If the work progresses as planned, trial runs on this stretch could commence in January 2027, followed by the necessary inspections and safety approvals.

Alandur to Become an Important Metro Interchange

The Koyambedu–Alandur stretch forms part of Corridor 5 (Red Line), which connects Madhavaram with Sholinganallur as part of the 118.9-km Chennai Metro Phase 2 project.

Extending the new Metro service up to Alandur is expected to benefit commuters by providing an interchange with the existing Phase 1 Metro network. This will improve connectivity between several important residential and commercial areas of Chennai.

Station Construction and Signalling Work Remain Challenges

Despite significant progress in viaduct construction, some important works are still pending. Construction of station buildings, particularly the entry and exit facilities at Butt Road and Alandur Phase 2 stations, remains a major challenge. Signalling installation and testing also need to be completed before passenger operations begin.

Although CMRL is targeting March 2027 for the opening, delays in station construction, signalling and safety clearances could push the launch by a few more months.

Once operational, this stretch is expected to improve public transport connectivity and reduce travel difficulties for commuters across western and southern Chennai.