Connecting Chennai's Growth Corridors
244 Lane Km | Tamil Nadu, India
GMR’s first Greenfield state highway project — that links NH 45, NH 4, and NH 205 and cuts an hour off the journey around Chennai.
Pochanpalli Expressway (NH-7)
Highways Overview
Pochannpalli Expressway
Chennai Outer Ring Road
Ambala-Chandigarh Expressways
Strengthening
Tamil Nadu’s
Regional Road Networks
The Chennai Outer Ring Road spans 244 lane kilometres and links three major national highways outside the city, easing congestion and enabling seamless freight and passenger movement.
Developed under the DBFOT (Annuity) model with a 20-year concession period, the project reflects GMR Group’s capability in delivering large-scale Greenfield highway infrastructure with durable design and structured operations.
FY 2025-26
244
Total Lane Kms
178
Main Carriageway
Lane Kms
Lane Kms
66
Service Roads
Lane Kms
Lane Kms
3
National Highways
Linked
Linked
Built on Connectivity, Merit & Discipline
GMR delivered this project with a focus on three core areas: strategic route design, measurable timesaving for commuters, and integration with regional highways.
Strategic Highway Link
Strategic Highway Link
Connects three major highways (NH 45, NH 4 and NH 205) allowing long distance vehicles to avoid city routes.
Urban Decongestion
Urban Decongestion
The bypass reduces pressure on inner city roads and allows commuters to benefit from shorter and more reliable journeys.
Coastal Corridor Access
Coastal Corridor Access
The route improves access to Mahabalipuram and Pondicherry and supports travel toward the East Coast Road and nearby towns.
The Hub of Regional Mobility
Chennai Outer Ring Road strengthens highway connections beyond the city limits of Chennai. By strengthening interstate and intrastate connectivity, the project contributes to long-term regional development in Tamil Nadu.
Key Highlights Of The Corridor
This corridor is testimony to the GMR Group’s ability to undertake and deliver a first-of-its-kind highway project.
GMR's first greenfield state highway built from the ground up
GMR's first greenfield state highway built from the ground up
One hour saved for road users who once had no route around Chennai
One hour saved for road users who once had no route around Chennai
Won through a competitively bid project commissioned in 2013.
Won through a competitively bid project commissioned in 2013.