Tamil NaduSunday, 26 July 2026·Hindu Tamil Thisai
Chennai Metro plans Kilambakkam-Chengalpattu and Ashok Nagar-Wimco Nagar extensions
CMRL has invited tenders to prepare DPRs for two metro rail extension proposals in Chennai.
Key highlights
Direct fact
In July 2026, Chennai Metro Rail Limited (CMRL) invited tenders to prepare detailed project reports for extending the proposed Kilambakkam metro corridor to Chengalpattu by 27 km and the Ashok Nagar–Wimco Nagar line by 11 km.
Key specifics
- The Kilambakkam–Chengalpattu extension is planned as a 27 km corridor.
- The Ashok Nagar–Wimco Nagar extension is proposed for 11 km under Phase 2.
- The earlier Airport–Kilambakkam metro extension had been planned for 15.5 km with 13 stations and an estimated cost of ₹9,445 crore.
- Chennai Metro Phase 2 covers 116.1 km across 3 corridors.
- The DPRs will include ridership estimates, alignment, station locations, rolling stock, signalling, power needs, land requirement, environmental impact, and project cost.
Exam lens
TNPSC question type: Tamil Nadu infrastructure and metro expansion; remember 27 km, 11 km, 15.5 km, 13 stations, ₹9,445 crore, and CMRL as the implementing agency.