Line 3 (Chennai Metro)

Purple Line (Line 3)
Overview
Status	Under construction
Termini	Madhavaram Milk Colony Siruseri SIPCOT
Stations	47
Service
Type	Rapid transit
System	Chennai Metro
Operator(s)	Chennai Metro Rail Limited
Technical
Line length	45.4 km (28.2 mi)
Number of tracks	2
Character	26.3 km (16.3 mi) Underground 19.1 km (11.9 mi) Elevated
Track gauge	1,435 mm (4 ft 8+1⁄2 in) standard gauge
Electrification	25 kV 50 Hz AC overhead catenary
Operating speed	80 km/h (50 mph)
Route map Legend Madhavaram Milk Colony  Red Line  Madhavaram High Road Moolakadai Sembiyam Perambur Market Perambur Ayanavaram Otteri Nullah Otteri Pattalam Perambur Barracks Road Purasaiwakkam Kellys Kilpauk  Green Line  Chetput Lake Chetpet Cooum River Sterling Road Nungambakkam Anna Flyover Thousand Lights  Blue Line  Royapettah Dr. Radhakrishnan Salai Thirumayilai  Orange Line  Mandaveli Greenways Road Adyar River Adyar Junction Adyar Depot Buckingham Canal Indira Nagar, Chennai Thiruvanmiyur 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 I Semmancheri II Gandhi Nagar Navallur Siruseri SIPCOT 1 SIPCOT 2

The Purple Line or Line 3 is one of the planned lines of Chennai Metro. It is part of the second phase of the project and the under construction line stretches from Madhavaram Milk Colony to Siruseri SIPCOT. The 45.4 km (28.2 mi) long line will consist of 47 stations, out of which 28 will be underground and 19 will be at grade or elevated.