Red Line (Chennai Metro)

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Last edited April 10, 2026


Red Line (Line 5)
Overview
Native nameSivappu vaḻittaṭam
StatusUnder Construction
LocaleChennai, Tamil Nadu, India
TerminiTemplate:Stl
Template:Stl
Connecting linesOperational (5):
Template:Rcb Template:Rcb Template:Rbox, Template:Rbox, Template:Rbox
Upcoming (2):
Template:Rcb Template:Rcb
Stations45[lower-alpha 1]
Websitechennaimetrorail.org
Service
TypeRapid transit
SystemChennai Metro
Operator(s)Delhi Metro Rail Corporation[1]
Depot(s)Madhavaram
Pattabiram
Rolling stock
Technical
Line length47[2] km (29 mi)
Number of tracks2
Track gauge1,435 mm (4 ft 8+1⁄2 in) standard gauge
ElectrificationTemplate:25 kV 50 Hz overhead catenary
SignallingCBTC Signalling System
Route map
Template:Chennai Metro Red Line Route

The Red Line or Line 5 is one of the under construction lines of Chennai Metro Phase-II stretching from Madhavaram Milk Colony to Sholinganallur. The 44.6 km (27.7 mi)-long line will consist of 45 stations,[lower-alpha 1] station would be shared between the Purple and Red Lines, and is considered as a single station.}} 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 to Pattabiram has been proposed with its Detailed Project Report approved by Government of Tamil Nadu in May 2025. The 21.76 km (13.52 mi) branch line will consist of 19 elevated stations.

Planning and construction[edit | edit source]

Phase II[edit | edit source]

The construction of the first phase of Chennai Metro started in June 2009.[3] Commercial operations started on the green line in June 2015.[4][5][6] On 10 February 2019, the extension of blue line was opened, completing the first phase of the metro.[7]

In July 2016, Government of Tamil Nadu announced that the second phase would have three lines totaling 104 km (65 mi) in length with 104 stations.[8][9] Two corridors would extend from Madhavaram connecting with Siruseri and Sholinganallur respectively (lines 3 and 5) with the third corridor connecting Koyambedu with Lighthouse (line 4). The fifth line connecting Madhavaram Milk Colony and Sholinganallur will extend to 47 km (29 mi) of which 41.2 km (25.6 mi) would be elevated and 5.8 km (3.6 mi) underground. It will consist of 48 stations including six undergrounds stations.[10][11] The stations for the second phase were designed to be smaller than the existing stations operational in the first phase.[12]

On 20 November 2020, foundation stone for the second phase was laid and construction commenced.[13] In November 2022, Alstom was awarded the contract to supply metro coaches for the phase II expansion.[14] In May 2023, CMRL announced a revised plan for the second phase revising the station count on the fifth line to 45.8[lower-alpha 1] As per the final plan, the line will extend for 44.6 km (27.7 mi).[2]

Chennai Metro - Phase II[15]
Line Name Terminals Length (km) Stations Status
style="background:#Template:Rail color;|Red Line Madhavaram Milk Colony Sholinganallur 47 45 Under construction

The second phase is estimated to cost ₹632.46 billion (US$8.9 billion) of which initially ₹47.1 billion (US$660 million) was loaned by Japan International Cooperation Agency.[10][16][17] On 14 February 2021, the Prime Minister of India announced that the government has set aside ₹630 billion (US$8.8 billion) for the construction of phase II and further extension.[18] The line is expected to be completed by 2028.[19]

Phase II extension[edit | edit source]

In 2022, the state government proposed a branch extension for the fifth line from Koyambedu to Avadi, covering an approximate 16.1 km (10.0 mi).[20] In early 2024, feasibility report was submitted by CMRL for the proposed expansion of the line, green lighting the same.[21] It was later decided to extend the line till Pattabiram. The Detailed Project Report was approved by the Government of Tamil Nadu in May 2025 and forwarded to the Government of India for final approval. A depot near Pattabiram stretch of Outer Ring Road is also planned as a part of the expansion.[22][23]

Chennai Metro - Phase II Extension - Line 5B[21][23]
Line Terminals Length Stations Status
Red Line Koyambedu Pattabiram 21.76 km (13.52 mi) 19 DPR approved

Stations[edit | edit source]

Red Line
S.No Station Name[15] Expected Opening[24] Connections Layout
English Tamil
1 Template:Stl மாதவரம் பால் பண்ணை March 2027 Template:Rcb (Under Construction) Underground
2 Template:Stl மாதவரம் பணிமனை March 2027 At-grade
3 Template:Stl அசிசி நகர் March 2027 Elevated
4 Template:Stl மஞ்சம்பாக்கம் March 2027 Elevated
5 Template:Stl வேல்முருகன் நகர் March 2027 Elevated
6 Template:Stl மாதவரம் பேருந்து நிலையம் March 2027 Bus interchange Madhavaram Mofussil Bus Terminus Elevated
7 Template:Stl சாஸ்திரி நகர் March 2027 Elevated
8 Template:Stl ரெட்டேரி சந்திப்பு March 2027 Elevated
9 Template:Stl கொளத்தூர் சந்திப்பு March 2027 Underground
10 Template:Stl சீனிவாச நகர் March 2027 Underground
11 Villivakkam வில்லிவாக்கம் March 2027 up Villivakkam

(West Line)

Underground
12 Template:Stl வில்லிவாக்கம் பேருந்து நிலையம் March 2027 Underground
13 Template:Stl வில்லிவாக்கம் சி.டி.எச் சாலை March 2027 Underground
14 Template:Stl அண்ணா நகர் மேற்கு March 2027 Elevated
15 Template:Stl திருமங்கலம் March 2027 Template:Rcb Elevated
16 Template:Stl அண்ணா நகர் கே.வி March 2027 Elevated
17 Template:Stl கோயம்பேடு October 2026 Template:Rcb Elevated
18 Template:Stl கோயம்பேடு அங்காடி October 2026 Elevated
19 Template:Stl நடேசன் நகர் October 2026 Elevated
20 Template:Stl விருகம்பாக்கம் October 2026 Elevated
21 Template:Stl ஆழ்வார்திருநகர் October 2026 Template:Rcb (Under Construction) Elevated
22 Template:Stl வளசரவாக்கம் October 2026 Template:Rcb (Under Construction) Elevated
23 Template:Stl காரம்பாக்கம் October 2026 Template:Rcb (Under Construction) Elevated
24 Template:Stl ஆலப்பாக்கம் சந்திப்பு October 2026 Template:Rcb (Under Construction) Elevated
25 Template:Stl முகலிவாக்கம் October 2026 Elevated
26 Template:Stl ராமாபுரம் October 2026 Elevated
27 Template:Stl மணப்பாக்கம் October 2026 Elevated
28 Template:Stl சென்னை வர்த்தக மையம் October 2026 Elevated
29 Template:Stl பட் சாலை March 2027 Elevated
30 Template:Stl ஆலந்தூர் March 2027 Template:Rcb
Template:Rcb 		Elevated
31 Template:Stl பரங்கிமலை March 2027 Template:Rcb
up St. Thomas Mount

(South Line)
up St. Thomas Mount

(Chennai MRTS)[§]

Elevated
32 Template:Stl ஆதம்பாக்கம் March 2027 up Adambakkam

(Chennai MRTS)[§]

Elevated
33 Template:Stl வானுவம்பேட்டை March 2027 Elevated
34 Template:Stl உள்ளகரம் March 2027 Elevated
35 Template:Stl மடிப்பாக்கம் March 2027 Elevated
36 Template:Stl கீழ்க்கட்டளை March 2027 Elevated
37 Template:Stl ஈச்சங்காடு March 2027 Elevated
38 Template:Stl கோவிலம்பாக்கம் March 2027 Elevated
39 Template:Stl வெள்ளக்கல் March 2027 Elevated
40 Template:Stl மேடவாக்கம் I March 2027 Elevated
41 Template:Stl மேடவாக்கம் II March 2027 Elevated
42 Template:Stl பெரும்பாக்கம் March 2027 Elevated
43 Template:Stl செம்மொழித் தமிழாய்வு நிறுவனம் March 2027 Elevated
44 Template:Stl எல்காட் March 2027 Elevated
45 Template:Stl சோழிங்கநல்லூர் March 2027 Template:Rcb (Under Construction) Elevated

§ under construction

See also[edit | edit source]

Notes[edit | edit source]

  1. ↑ 1.0 1.1 1.2 Template:Stl station would be shared between the Red and Purple Lines, and the existing The existing Template:Stl station on the Green Line will accommodate the Red Line as well.

References[edit | edit source]

  1. ↑ Sampath, Nirupa (3 April 2025). "Chennai Metro Rail outsources phase 2 to Delhi Metro". DT Next. Retrieved 18 April 2025.
  2. ↑ 2.0 2.1 "Chennai metro scraps nine stations in phase 2". The Times of India. 14 May 2023. Retrieved 1 May 2024.
  3. ↑ "Work commences on Chennai Metro". Projects Today. 11 June 2009. Archived from the original on 25 August 2017. Retrieved 16 August 2010.
  4. ↑ "Chennai Metro one stop short of dream run". Deccan Chronicle. 31 August 2014. Archived from the original on 4 March 2016. Retrieved 6 June 2016.
  5. ↑ "Conditional clearance for Metro Rail". The Hindu. 28 April 2015. Archived from the original on 14 January 2016. Retrieved 7 June 2016.
  6. ↑ Chennai Metro Newsletter - August 2015 (PDF) (Report). Chennai Metro. 29 June 2015. Archived (PDF) from the original on 20 October 2023. Retrieved 7 June 2023.
  7. ↑ Simhan, TE Raja (10 February 2019). "PM Modi inaugurates Chennai Metro Rail's final leg". The Hindu Businessline. Archived from the original on 26 October 2020. Retrieved 13 February 2019.
  8. ↑ Sekar, Sunitha (2 August 2016). "1800 km, 180 stations: Unveiling Phase II of Metro". The Hindu. Archived from the original on 26 December 2016. Retrieved 24 January 2017.
  9. ↑ Sekar, Sunitha. "Detailed project report for Phase II of Metro Rail ready". The Hindu. Archived from the original on 27 December 2016. Retrieved 24 January 2017.
  10. ↑ 10.0 10.1 "Project status of Chennai Metro". Chennai Metro Rail Limited. Archived from the original on 26 September 2016. Retrieved 16 August 2010.
  11. ↑ "Metro's second phase to go up to Poonamallee". The Hindu. 20 July 2017. Archived from the original on 26 February 2020. Retrieved 1 October 2017.
  12. ↑ U, Tejonmayam (28 December 2016). "Chennai: Metro rail to trim stations under phase 2". The Times of India. Archived from the original on 8 February 2017. Retrieved 24 January 2017.
  13. ↑ "Amit Shah to lay foundation for Chennai Metro's phase II project". The Hindu. 17 November 2020. Archived from the original on 28 April 2024. Retrieved 1 December 2023.
  14. ↑ "Alstom wins €98 million contract to design and manufacture 78 metro coaches for Chennai Metro Phase-II" (Press release). Alstom. 11 November 2022. Archived from the original on 16 December 2023. Retrieved 1 December 2023.
  15. ↑ 15.0 15.1 Chennai Metro rail phase II (PDF) (Report). Chennai Metro Rail Limited. Retrieved 1 May 2024.
  16. ↑ "Phase-II Chennai metro project to cost Rs 36,000 cr". Business Standard. 2 March 2014. Archived from the original on 16 December 2023. Retrieved 1 December 2023.
  17. ↑ "JICA extends ODA Loan of INR 4710 Cr for Chennai Metro Rail Project Phase 2 (II)". Japan International Cooperation Agency. 21 June 2022. Archived from the original on 16 December 2023. Retrieved 1 December 2023.
  18. ↑ Dipak K, Dash. "Ground work for Chennai metro rail phase-2 hit". Times of India. Archived from the original on 18 February 2021. Retrieved 19 February 2021.
  19. ↑ "Metro Rail second phase likely to be completed in six years". The New Indian Express. 26 April 2019. Retrieved 26 April 2019.
  20. ↑ "Detailed feasibility report for Chennai Metro Rail's Phase 2 extension to be ready in three months". The Hindu. 26 March 2023. Archived from the original on 28 April 2024. Retrieved 1 December 2023.
  21. ↑ 21.0 21.1 "CMRL submits Detailed Feasibility Reports for Phase II project extension". The Financial Express. 22 September 2023. Archived from the original on 29 April 2024. Retrieved 30 April 2024.
  22. ↑ Sundaram, Ram (2 May 2025). "TN govt gives in-principle nod for Chennai Metro link from Koyambedu to Pattabiram". The Times of India. Retrieved 2 May 2025.
  23. ↑ 23.0 23.1 "Chennai Metro Rail submits DPR for 21.76 km extension from Koyambedu to Pattabiram". The New Indian Express. 22 February 2025. Retrieved 22 February 2025.
  24. ↑ Sekar, Sunitha (20 January 2024). "Work on elevated stretches of corridor 5 of Metro Rail phase II project gains momentum". The Hindu. ISSN 0971-751X. Retrieved 22 March 2025.
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