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Purple Line (Chennai Metro)

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Purple Line (Line 4)
Overview
Native nameOodhā vaḻittaṭam
StatusUnder construction
Termini
Connecting linesOperational (7):
Blue Line Green Line  Chennai MRTS ,  Chennai Suburban North Line ,  Chennai Suburban West Line , Chennai Suburban West North Line,  Chennai Suburban South Line 
Upcoming (2):
Red Line Yellow Line
Stations48[a]
Service
TypeRapid transit
SystemChennai Metro
OperatorDelhi Metro Rail Corporation[1]
Depot(s)Semmancheri
Madhavaram
Rolling stock
History
Planned openingDecember 2027; 1 year's time (2027-12) [2]
December 2028; 2 years' time (2028-12) [3]
Technical
Line length45.8[4] km (28.5 mi)
Number of tracks2
Character26.7 km (16.6 mi) Underground
19.1 km (11.9 mi) Elevated
Track gauge1,435 mm (4 ft 8+1⁄2 in) standard gauge
Electrification25 kV 50 Hz AC overhead catenary
Operating speed80 km/h (50 mph)
SignallingCBTC Signalling System
Route map

Legend
Madhavaram Milk Colony Red Line
Madhavaram High Road
Moolakadai
Sembiyum
Perambur Market
Perambur Mainline rail interchange
Perambur railway station
Ayanavaram
Otteri Nullah
Otteri
Pattalam
Perambur Barracks Road
Purasaiwakkam
Kellys
Kilpauk
Kilpauk on Green Line
Chetput Lake
Chetpet railway station
Chetpet Mainline rail interchange
Cooum River
Sterling Road
Nungambakkam
Anna Flyover
Thousand Lights on Blue Line
Thousand Lights
Royapettah
Dr. Radhakrishnan Salai
Thirumayilai Mainline rail interchange Yellow Line
Mandaveli
Greenways Road
Adyar River
Adyar Junction
Adyar Depot
Buckingham Canal
Indira-Nagar
Thiruvanmiyur Mainline rail interchange
Chennai MRTS line
Tharamani
Nehru Nagar
Kandanchavadi
Perungudi
Thoraipakkam
Mettukuppam
PTC Colony
Okkiyampet
Okkiam Maduvu
Karapakkam
Okkiyam Thoraipakkam
Sholinganallur Red Line
Sholinganallur Lake I
Sholinganallur Lake II
Semmancheri metro depot
Semmancheri I
Semmancheri II
Gandhi Nagar
Navallur
Siruseri
SIPCOT 1
SIPCOT 2

The Purple Line or Line 3 is one of the under construction lines of Chennai Metro Phase-II stretching from Madhavaram Milk Colony to Siruseri SIPCOT 2. The 45.8 km (28.5 mi) long line will consist of 48 stations, out of which 28 will be underground and 20 will be at grade or elevated.[a]

Planning and construction

[edit]

Phase II

[edit]

The construction of the first phase of Chennai Metro started in June 2009.[5] Commercial operations started on the green line in June 2015.[6][7][8] On 10 February 2019, the extension of blue line was opened, completing the first phase of the metro.[9]

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.[10][11] 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 third line connecting Madhavaram Milk Colony and Siruseri SIPCOT will extend to 45.8 km (28.5 mi) of which 19.1 km (11.9 mi) would be elevated and 26.7 km (16.6 mi) underground. It will consist of 50 stations including 30 undergrounds stations.[12][13] The stations for the second phase were designed to be smaller than the existing stations operational in the first phase.[14]

On 20 November 2020, foundation stone for the second phase was laid and construction commenced.[15] In November 2022, Alstom was awarded the contract to supply metro coaches for the phase II expansion.[16] In May 2023, CMRL announced a revised plan for the second phase, with the line extending for 45.8 km (28.5 mi), and a revised station count of 48 stations.[a][4][17]

Chennai Metro - Phase II[18]
Line Name Terminals Length (km) Stations Status
Purple Line Madhavaram Siruseri SIPCOT 2 45.8 48[a] Under construction

The second phase is estimated to cost ₹632.46 billion (US$6.6 billion) of which initially ₹47.10 billion (US$490 million) was loaned by Japan International Cooperation Agency.[12][19][20] On 14 February 2021, the Prime Minister of India announced that the government has set aside ₹630 billion (US$6.5 billion) for the construction of phase II and further extension.[21]

Phase II extension

[edit]

In 2022, the state government proposed an extension plan for the third line from Siruseri to Kilambakkam, covering an approximate 25 km (16 mi).[22] In September 2023, feasibility report was submitted by CMRL for the proposed expansion of the line, green lighting the same.[23] The extension was scrapped due to patronage and profitability concerns.[24]

Stations

[edit]
Purple Line
S.No Station Name[18] Expected Opening Connections Station Layout
English Tamil
1Madhavaram Milk Colonyமாதவரம் பால் பண்ணைDecember 2028Red Line (Under Construction)Underground
2Madhavaram High Roadமாதவரம் நெடுஞ்சாலை December 2028 Underground
3Moolakadaiமூலக்கடை December 2028 Underground
4Sembiyumசெம்பியம் December 2028 Underground
5Perambur Marketபெரம்பூர் அங்காடி December 2028 Underground
6Peramburபெரம்பூர் December 2028

up Perambur
(West Line)

 Underground
7Ayanavaramஅயனாவரம் December 2028Ayanavaram MTC Bus Depot Underground
8Otteriஓட்டேரி December 2028 Underground
9Pattalamபட்டாளம் December 2028 Underground
10Perambur Barracks Roadபெரம்பூர் பேரக்ஸ் சாலை December 2028 Underground
11Purasaiwakkamபுரசைவாக்கம் December 2028 Underground
12Kellysகெல்லீஸ் December 2028 Underground
13Kilpaukகீழ்ப்பாக்கம் December 2028Green Line Underground
14Chetpetசேத்துப்பட்டு December 2028

up Chetpet
(South Line)

 Underground
15Sterling Roadஸ்டெர்லிங் சாலை December 2028 Underground
16Nungambakkamநுங்கம்பாக்கம் December 2028 Underground
17Anna Flyoverஅண்ணா மேம்பாலம் December 2028 Underground
18Thousand Lightsஆயிரம் விளக்கு December 2028Blue Line Underground
19Royapettahராயப்பேட்டை December 2028 Underground
20Dr. Radhakrishnan Salaiடாக்டர் ராதாகிருஷ்ணன் சாலை December 2028 Underground
21Thirumayilaiதிருமயிலை December 2028up Thirumayilai

(Chennai MRTS)
Yellow Line (Under Construction)

 Underground
22Mandaiveliமந்தைவெளி December 2028 Underground
23Greenways Roadபசுமைவழிச் சாலை December 2028 Underground
24Adyar Junctionஅடையாறு சந்திப்பு December 2028 Underground
25Adyar Depotஅடையாறு பணிமனை December 2028 Underground
26Indira Nagarஇந்திரா நகர் December 2028up Indira Nagar

(Chennai MRTS)

 Underground
27Thiruvanmiyurதிருவான்மியூர் December 2028up Thiruvanmiyur

(Chennai MRTS)

 Underground
28Taramaniதரமணி December 2028 Underground
29Nehru Nagarநேரு நகர் December 2027Elevated
30Kandanchavadiகந்தன்சாவடி December 2027 Elevated
31Perungudiபெருங்குடி December 2027 Elevated
32Thoraipakkamதுரைப்பாக்கம் December 2027 Elevated
33Mettukuppamமேட்டுக்குப்பம் December 2027 Elevated
34PTC Colonyபி.டி.சி. காலனி December 2027 Elevated
35Okkiyampetஒக்கியம்பேட்டை December 2027 Elevated
36Karapakkamகாரப்பாக்கம் December 2027 Elevated
37Okkiyam Thoraipakkamஒக்கியம் துரைப்பாக்கம் December 2027 Elevated
38Sholinganallurசோழிங்கநல்லூர் December 2027Red Line (Under Construction) Elevated
39Sholinganallur Lake Iசோழிங்கநல்லூர் ஏரி I December 2027 Elevated
40Sholinganallur Lake IIசோழிங்கநல்லூர் ஏரி II December 2027 Elevated
41Semmancheri Depotசெம்மஞ்சேரி பணிமனை December 2027 Elevated
42Semmancheri Iசெம்மஞ்சேரி I December 2027 Elevated
43Semmancheri IIசெம்மஞ்சேரி II December 2027 Elevated
44Gandhi Nagarகாந்தி நகர் December 2027 Elevated
45Navallurநாவலூர் December 2027 Elevated
46Siruseriசிறுசேரி December 2027 Elevated
47SIPCOT 1சிப்காட் 1 December 2027 Elevated
48SIPCOT 2சிப்காட் 2 December 2027 Elevated

§ under construction

See also

[edit]

Notes

[edit]
  1. 1 2 3 4 Madhavaram Milk Colony station would be shared between the Purple and Red Lines, and is considered as a single station.

References

[edit]
  1. ↑ Sampath, Nirupa (3 April 2025). "Chennai Metro Rail outsources phase 2 to Delhi Metro". DT Next. Retrieved 18 April 2025.
  2. ↑ "Chennai Metro Rail PROJECT STATUS". Chennai Metro. Retrieved 11 August 2025.
  3. ↑ "Chennai Metro Rail PROJECT BRIEF". Chennai Metro. Retrieved 24 March 2026.
  4. 1 2 "Chennai metro scraps nine stations in phase 2". The Times of India. 14 May 2023. Archived from the original on 2 June 2024. Retrieved 1 May 2024.
  5. ↑ "Work commences on Chennai Metro". Projects Today. 11 June 2009. Archived from the original on 25 August 2017. Retrieved 16 August 2010.
  6. ↑ "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.
  7. ↑ "Conditional clearance for Metro Rail". The Hindu. 28 April 2015. Archived from the original on 14 January 2016. Retrieved 7 June 2016.
  8. ↑ 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.
  9. ↑ 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.
  10. ↑ 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.
  11. ↑ 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.
  12. 1 2 "Project status of Chennai Metro". Chennai Metro Rail Limited. Archived from the original on 26 September 2016. Retrieved 16 August 2010.
  13. ↑ "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.
  14. ↑ 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.
  15. ↑ "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.
  16. ↑ "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.
  17. ↑ "Phase II– S98 (Anaimalai) TBM Breakthrough at Venugopal Nagar Shaft" (PDF). Chennai Metro Rail Limited (Press release). 7 June 2023. Retrieved 1 May 2024.
  18. 1 2 Chennai Metro rail phase II (PDF) (Report). Chennai Metro Rail Limited. Retrieved 1 May 2024.
  19. ↑ "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.
  20. ↑ "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.
  21. ↑ 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.
  22. ↑ "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.
  23. ↑ "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.
  24. ↑ "Metro from Siruseri- Kilambakkam Bus Terminus Metro Plans Dropped, deemed non-feasible". Times Now. 9 May 2024. Archived from the original on 11 May 2024. Retrieved 11 May 2024.
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