Blue Line

The Blue Line (Line 3 & Line 4) is a metro rail line of the Delhi Metro, a rapid transit system in Delhi, India. It is the longest line (by total length) of the network and consists of a Main Line (Line 3) with 50 stations from Noida Electronic City to Dwarka Sector 21, with a length of and a Branch Line (Line 4) consisting of 8 stations from Vaishali to Yamuna Bank, with a length of . The Main line (Line 3) was the longest line of the Delhi Metro network until 6 August 2021, when an unfinished section between Mayur Vihar Pocket 1 and Trilokpuri Sanjay Lake stations on the Pink Line was inaugurated and it became one 59-km-long corridor. History The Dwarka – Barakhamba Road section of the line was inaugurated by the then Prime Minister of India, Dr. Manmohan Singh, on 31 December 2005 and opened to the public 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 with a length of was inaugurated on 8 January 2010 from Yamuna Bank metro station up to the Anand Vihar in East Delhi. It was further extended up to Vaishali, with it opening to 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 opened for public by Prime Minister Narendra Modi.