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Chennai Metro Orange Line Route, Stations and Latest Updates

Updated on : 06 November, 2025

By Hexadecimal Software Team

Image Source: google.com

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Introduction

The Chennai Metro Orange Line is a vital part of Phase 2, connecting Poonamallee Bypass to Lighthouse. Designed to ease traffic congestion and improve urban mobility, it enhances citywide connectivity with modern infrastructure and faster travel options.

Image Source: Google

Overview of Chennai Metro Orange Line

Period	Key Developments
2016–2018	Initial planning and feasibility studies conducted under Chennai Metro Rail Phase 2 proposal, identifying the Poonamallee–Lighthouse corridor as a priority route.
2019–2020	Detailed project reports (DPR) prepared and approved by Chennai Metro Rail Limited (CMRL) and the Tamil Nadu Government.
2021–2022	Central Government approval granted; land acquisition and tendering processes initiated for key sections of the Orange Line.
2023–2024	Construction began on elevated and underground stretches, with significant progress across stations and depot works.
2025–Present	Ongoing development of remaining sections, track installation, and testing activities aimed at launching passenger services soon.

Route Map and Project Details

Component	Details
Total Length	26.1 km (approximately)
Route Type	Combination of elevated and underground sections
Starting Point	Poonamallee Bypass
Ending Point	Lighthouse (Marina Beach)
Total Stations	28 stations (18 elevated and 10 underground)
Major Interchange Stations	Alwarpet, Kodambakkam, and Nandanam
Corridor Alignment	Runs along Poonamallee High Road, Mount Road, and Santhome areas
Implementing Agency	Chennai Metro Rail Limited (CMRL)
Estimated Project Cost	₹9,000 crore (approx.)
Expected Completion	Phase-wise openings expected by 2026

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List of Stations and Key Interchanges

Station Name	Type / Interchange
Poonamallee Bypass	Elevated – Starting Terminal Station
Kattupakkam	Elevated
Karayanchavadi	Elevated
Kumananchavadi	Elevated
Ramachandra Hospital	Elevated
Iyyappanthangal	Elevated – Near major bus depot
Porur Junction	Elevated
Alapakkam	Elevated
Valasaravakkam	Elevated
Meenambakkam Bypass	Elevated
Vadapalani	Underground – Interchange with Green Line
Kodambakkam	Underground – Interchange with Blue Line
Teynampet	Underground
Nandanam	Underground – Interchange with existing Phase 1 corridor
Cathedral Road	Underground
Alwarpet	Underground – Major interchange station
Mylapore	Underground
Lighthouse	Underground – Terminal Station near Marina Beach

Connectivity and Major Areas Covered

Section	Key Areas Covered
Poonamallee Bypass – Porur	Covers fast-developing western suburbs like Kattupakkam, Karayanchavadi, and Iyyappanthangal, improving access for residential and educational zones.
Porur – Vadapalani	Connects Porur Junction, Ramachandra Hospital, and Valasaravakkam, easing travel for commuters and medical professionals.
Vadapalani – Kodambakkam	Passes through major commercial and entertainment hubs, linking shopping centers and offices in central Chennai.
Kodambakkam – Nandanam	Enhances city connectivity by linking business districts and offering interchanges with existing metro corridors.
Nandanam – Lighthouse	Provides direct access to cultural and coastal zones including Alwarpet, Mylapore, and Marina Beach, improving tourism and local travel convenience.

Image Source: Google

Construction Progress and Timeline

Year / Phase	Construction Milestones
2021	Project officially approved; tendering process initiated for elevated and underground sections of the Orange Line.
2022	Land acquisition and utility shifting began across key stretches such as Poonamallee, Porur, and Vadapalani.
2023	Civil construction commenced; piers and viaduct works started on the Poonamallee–Porur elevated corridor.
2024	Major tunnel boring operations launched for underground sections between Kodambakkam and Lighthouse; station structure works in progress.
2025	Finishing works, track laying, and system installation ongoing; phased trial runs expected to begin by late 2025.
2026 (Expected)	Final testing, safety approvals, and public inauguration of the complete Orange Line corridor planned.

Image Source: Google

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Benefits and Urban Mobility Impact

Category	Key Benefits and Impact
Reduced Travel Time	The Orange Line significantly cuts travel duration between Poonamallee and Marina Beach, easing daily commutes for thousands of passengers.
Traffic Decongestion	Helps reduce road congestion along Poonamallee High Road and Mount Road by shifting commuters from private vehicles to metro services.
Enhanced Connectivity	Provides seamless integration with existing metro corridors, bus networks, and suburban railway systems, improving last-mile access.
Economic Growth	Boosts commercial activity along the corridor by improving accessibility to business hubs, shopping centers, and industrial areas.
Environmental Benefits	Promotes eco-friendly urban transport by lowering carbon emissions and reducing fuel consumption.
Urban Development	Encourages real estate and infrastructure growth in western and central Chennai through improved connectivity and accessibility.

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Economic and Real Estate Growth

Sector	Impact and Development Highlights
Commercial Development	Improved metro access is attracting new businesses, retail chains, and office spaces along Porur, Vadapalani, and Nandanam corridors.
Residential Real Estate	Property values in areas like Poonamallee, Iyyappanthangal, and Mylapore have seen steady growth due to enhanced metro connectivity.
Employment Opportunities	Construction, retail, and service sectors along the Orange Line are witnessing increased job creation and local economic stimulation.
Infrastructure Investment	The metro project has driven large-scale infrastructure upgrades, including better roads, drainage, and pedestrian facilities.
Tourism and Hospitality	Easy access to cultural and coastal areas like Marina Beach and Mylapore is boosting tourism, hotel occupancy, and local business revenue.
Long-Term Economic Impact	The Orange Line is expected to strengthen Chennai’s position as a major economic hub by improving transport efficiency and urban livability.

Image Source: Google

Future Expansion and Development Plans

Phase / Plan	Details and Future Developments
Phase 2B Extension	Proposals under review to extend the Orange Line beyond Lighthouse towards Thiruvanmiyur to enhance coastal connectivity.
Integration with Other Corridors	Plans to link the Orange Line with Blue and Green lines at key interchange stations for smoother inter-corridor travel.
Transit-Oriented Development (TOD)	Development of commercial complexes, residential projects, and pedestrian-friendly zones near major metro stations.
Smart Mobility Integration	Adoption of digital ticketing, real-time tracking, and multimodal transport apps for a seamless commuter experience.
Sustainability Initiatives	Implementation of solar panels, rainwater harvesting, and energy-efficient systems across stations and depots.
Future Network Expansion	Long-term vision to connect the Orange Line with upcoming metro corridors and suburban routes under Phase 3 of Chennai Metro.

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FAQs

Que: What is the Chennai Metro Orange Line?
Ans: The Chennai Metro Orange Line is a major corridor under Phase 2 of the metro expansion, connecting Poonamallee Bypass in the west to Lighthouse near Marina Beach in the east.

Que: What is the total length of the Orange Line and how many stations does it have?
Ans: The Orange Line spans approximately 26.1 km and includes 28 stations — 18 elevated and 10 underground — covering key residential and commercial areas across Chennai.

Que: When is the Chennai Metro Orange Line expected to be completed?
Ans: The line is expected to be operational by late 2026, with phased openings planned as construction progresses across different sections.

Que: Which areas will benefit the most from the Orange Line?
Ans: Major areas like Poonamallee, Porur, Vadapalani, Kodambakkam, Alwarpet, and Mylapore will gain faster and more reliable metro connectivity, reducing road congestion.

Que: What are the key advantages of the Orange Line for Chennai?
Ans: The project will improve urban mobility, reduce travel time, support eco-friendly transport, boost real estate development, and strengthen the city’s economic growth.