Blue Line (Delhi Metro)

Blue Line (Line 3 & Line 4)
Fleet of Blue line manufactured by Mitsubishi-ROTEM
Overview
Status	Operational
Locale	Delhi, Noida, Ghaziabad
Termini	Line 3 (Main Line): Noida Electronic City and Dwarka Sector 21 Line 4 (Branch): Vaishali and Yamuna Bank
Stations	Line 3 (Main Line): 50 Line 4 (Branch): 8
Service
Type	Rapid transit
System	Delhi Metro
Operator(s)	Delhi Metro Rail Corporation
History
Opened	Line 3 (Main Line): 31 December 2005, Line 4 (Branch): 8 January 2010
Technical
Line length	Line 3 (Main Line): 56.11 km (34.87 mi), Line 4 (Branch): 8.51 km (5.29 mi)
Character	At-grade, Underground, and Elevated
Track gauge	1,676 mm (5 ft 6 in) broad gauge
Electrification	25 kV 50 Hz AC overhead catenary
Route map Legend Sahibabad Vasundhara Sector 5 Shakti Khand DPS Indirapuram Vaibhav Khand Noida Electronic City Noida Sector 62 Noida Sector 59 Noida Sector 61 Noida Sector 52 Aqua Line Noida Sector 34 Noida City Centre Golf Course Botanical Garden Magenta Line Noida Sector 18 Vaishali Noida Sector 16 Kaushambi Noida Sector 15 Uttar Pradesh Delhi border Pink Line Anand Vihar New Ashok Nagar Pink Line Karkarduma Mayur Vihar Extension Preet Vihar Mayur Vihar-I Pink Line Nirman Vihar Nizamuddin Bridge over National Highway 24 Laxmi Nagar Akshardham Yamuna Bank Yamuna River Indraprastha Green Line Ring Road Indian Railways Supreme Court Tilak Marg/ITO Mandi House Violet Line Barakhamba Road Rajiv Chowk Yellow Line Ramakrishna Ashram Marg Magenta Line Jhandewalan Ridge Road Karol Bagh Rajendra Place Patel Nagar Shadipur Indian Railways Kirti Nagar Green Line Satguru Ram Singh Marg Moti Nagar Ramesh Nagar Ring Road Rajouri Garden Pink Line Tagore Garden Subhash Nagar Tilak Nagar Janakpuri East Outer Ring Road Janakpuri West Magenta Line Uttam Nagar East Uttam Nagar West Nawada Dwarka Mor Dwarka Grey Line Dwarka Sector 14 Dwarka Sector 13 Dwarka Sector 12 Dwarka Sector 11 Dwarka Sector 10 Dwarka Sector 9 Dwarka Sector 8 Dwarka Sector 21 Airport Express

The Blue Line (Line 3 & Line 4) is a rapid transit metro line of the Delhi Metro in Delhi, India. Predominantly elevated, it is the longest line (by total length) on the network and consists of a Main Line (Line 3) with 50 stations from Noida Electronic City to Dwarka Sector 21, spanning a length of 56.11 kilometres (34.87 miles), and a Branch Line (Line 4) consisting of 8 stations from Vaishali to Yamuna Bank, with a length of 8.51 kilometres (5.29 miles).^[1]

The Main Line (Line 3) held the title of the longest line in the Delhi Metro network until August 6, 2021, when the inauguration of the unfinished section between Mayur Vihar Pocket 1 and Trilokpuri Sanjay Lake stations on the Pink Line extended it to a 59 km (36.66 mi)-long corridor, surpassing Line 3.^[2]