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 km, and a Branch Line (Line 4) consisting of 8 stations from Vaishali to Yamuna Bank, with a length of 8.51 km. 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-long corridor, surpassing Line 3.

History

The Dwarka – Barakhamba Road section of the line was inaugurated and opened to the public by the then Prime Minister of India, Dr. Manmohan Singh, on 31 December 2005. Subsequent sections opened between Dwarka – Dwarka Sector 9 on 1 April 2006, Barakhamba Road – Indraprastha on 11 November 2006, Indraprastha – Yamuna Bank on 10 May 2009, Yamuna Bank – Noida City Centre on 12 November 2009, and Dwarka Sector 9 – Dwarka Sector 21 on 30 October 2010. A branch of the Blue line spanning 6.25 km was inaugurated on 8 January 2010 from Yamuna Bank metro station to the Anand Vihar in East Delhi. It was further extended up to Vaishali, with it opening to the public on 14 July 2011. On 9 March 2019, a 6.67 km extension of the line from Noida City Centre to Noida Electronic City was unveiled to the public.

Phase IV

It has been proposed to extend the main line from Noida Electronic City to Sahibabad with five stations at Vaibhav Khand, DPS Indirapuram, Shakti Khand, Vasundhara Sector 5, and Sahibabad.

Stations

Karkardooma station on the Vaishali branch of the Blue Line holds the distinction of the second highest station of Delhi Metro with a platform height of 20 m. Rajouri Garden station on the main line is the third highest station with a height of 17 m.

Line 3 - Main Line

Delhi Metro has parking facilities at 35 metro stations on the Blue line.

Line 4 - Branch Line

Train Info