The Red Line or Line 5 is one of the under construction lines of

Chennai Metro The Chennai Metro is a rapid transit system serving the city of Chennai, India. Operated by Chennai Metro Rail Limited (CMRL) – a joint venture between the Government of India and the State Government of Tamil Nadu, the network consists o ...

Phase-II stretching from

Madhavaram Milk Colony Madhavaram Milk Colony is a neighbourhood in northern Chennai, a metropolitan city in Chennai district in the Indian state of Tamil Nadu. Madhavaram Milk Colony is a small habitat of 5000+ population in the northern part of Chennai. Due to t ...

Sholinganallur Sholinganallur, also spelled Solinganalloor or Sozhinganalloor, is a southern suburb of Chennai, India. Etymology The etymology given by Tamil scholars is "Chola" + "Angam" + "Nallur", which indicates that Sholinganallur was once part of a Ch ...

. The long line will consist of 45 stations, out of which six will be underground and 39 will be at grade or elevated. A branch line of corridor five, known as Line 5B, from

Koyambedu Koyambedu is a neighbourhood in Chennai, India. Situated in the western part of Chennai city, the Koyambedu area has become a major hub of activity in Chennai after the inauguration of the Koyambedu market in 1996 and the Chennai Mofussil Bus ...

Pattabiram Pattabiram is a neighbourhood situated on the western part of Chennai, India. The suburb, which falls under Avadi Municipal Corporation, is about 25 km from the Chennai Central railway station. It is an immediate neighbour of Chennai cit ...

has been proposed with its Detailed Project Report approved by Government of Tamilnadu on May 2025. The branch line will consist of 19 elevated stations.

Planning and construction

Phase II

The construction of the first phase of

started in June 2009. Commercial operations started on the green line in June 2015. On 10 February 2019, the extension of blue line was opened, completing the first phase of the metro. In July 2016,

Government of Tamil Nadu The Government of Tamil Nadu () is the administrative body responsible for the governance of the Indian state of Tamil Nadu. Chennai is the capital of the state and houses the state executive, legislature and head of judiciary. Under the Const ...

announced that the second phase would have three lines totaling in length with 104 stations. Two corridors would extend from Madhavaram connecting with Siruseri and

respectively (lines 3 and 5) with the third corridor connecting

with

Lighthouse A lighthouse is a tower, building, or other type of physical structure designed to emit light from a system of lamps and lens (optics), lenses and to serve as a beacon for navigational aid for maritime pilots at sea or on inland waterways. Ligh ...

(line 4). The fifth line connecting

and Sholinganallur will extend to of which would be

elevated An elevated railway or elevated train (also known as an el train or el for short) is a railway with the Track (rail transport), tracks above street level on a viaduct or other elevated structure (usually constructed from steel, cast iron, concre ...

and underground. It will consist of 48 stations including six undergrounds stations. The stations for the second phase were designed to be smaller than the existing stations operational in the first phase. On 20 November 2020, foundation stone for the second phase was laid and construction commenced. In November 2022, Alstom was awarded the contract to supply metro coaches for the phase II expansion. In May 2023, CMRL announced a revised plan for the second phase revising the station count on the fifth line to 45. As per the final plan, the fourth line will extend for . The second phase is estimated to cost of which initially was loaned by JICA. On 14 February 2021,

Prime Minister of India The prime minister of India (ISO 15919, ISO: ) is the head of government of the Republic of India. Executive authority is vested in the prime minister and his chosen Union Council of Ministers, Council of Ministers, despite the president of ...

announced that the government has set aside for the construction of phase II and further extension. The line is expected to be completed by 2028.

Phase II extension

In 2022, the state government proposed a branch extension for the fifth line from

Avadi Avadi () is a city Located within the Chennai metropolitan area, Its the headquarters of Avadi Police, Avadi City Police, Avadi City Municipal Corporation, Avadi City Corporation and Avadi taluk, Avadi Taluk located within the Thiruvallur dist ...

, covering an approximate . In early 2024, feasibility report was submitted by CMRL for the proposed expansion of the line, green lighting the same. It was later decided to extend the line till

. Detailed Project Report is approved by

on May 2025. A depot near

stretch of Outer Ring Road is also planned.

Stations

under construction

References

{{DEFAULTSORT:Chennai Metro - Line 5 Chennai Metro lines

Planning and construction

Phase II

Phase II extension

Stations

See also

References