The Project will construct a new metro line (Corridor 4) in Chennai with a total length of 26.8 km, including 30 metro stations. Upon completion, the Project will have a design capacity to carry daily 0.5 million passenger trips.

The Project is part of the Chennai Metro Rail Phase- II, which envisages constructing three metro rail corridors, namely Corridor 3, Corridor 4 and Corridor 5, for a total route length of about 119.6 km. Corridor 4 (the Project) will provide connectivity to the eastern and western parts of the city, whereas Corridor 3 and Corridor 5 will provide connectivity to the northern and southern parts of the city.

The Project will be completed by the end of 2026. GoTN will be the Executing agency and CMRL will be the Implementing agency. NDB loan will finance procurement of systems and equipment components for the Project, following the CMRL’s procurement manual, in compliance with the country system procurement laws and regulations, as well as with the core principles of NDB Procurement Policy.

The Project has been classified as Category A in accordance with the NDB Environment and Social Framework (ESF). The main environmental and social impacts include the acquisition of 8.3 hectares of private land, triggering physical displacement of approximately 690 households and economic displacement of approximately 300 households, removal of approximately 540 trees, disruption of traffic and public utilities, occupational safety risks, and general environmental pollution emissions and discharges during construction and operation. These impacts will be addressed and mitigated by adherence to country system requirements and management plans developed for the Project, including an Environmental and Social Impact Management Plan, to ensure compliance with country systems and NDB ESF.

The Project will be financed through loans from New Development Bank (NDB), Asian Development Bank (ADB), Asian Infrastructure Investment Bank (AIIB) and Counterpart fund.