# Blue Line (Delhi Metro)

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 eight stations from Vaishali to Yamuna Bank, with a length of 8.51 kilometres (5.29 miles).
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.

## History

Line 3 :
| Blue Line - Main Line ||||||
| Phase | Extension date | Termini | Termini | Length | Stations |
| I | 31 December 2005 | Dwarka | Barakhamba Road | 22.74 km (14.13 mi) | 22 |
| I | 1 April 2006 | Dwarka | Dwarka Sector 9 | 6.47 km (4.02 mi) | 6 |
| I | 11 November 2006 | Barakhamba Road | Indraprastha | 2.80 km (1.74 mi) | 3 |
| II | 10 May 2009 | Indraprastha | Yamuna Bank | 2.17 km (1.35 mi) | 1 |
| II | 12 November 2009 | Yamuna Bank | Noida City Centre | 12.85 km (7.98 mi) | 10 |
| II | 30 October 2010 | Dwarka Sector 9 | Dwarka Sector 21 | 2.28 km (1.42 mi) | 2 |
| III | 9 March 2019 | Noida City Centre | Noida Electronic City | 6.80 km (4.23 mi) | 6 |
| Total | Total | Noida Electronic City | Dwarka Sector 21 | 56.11 km (34.87 mi) | 50 |
Line 4 :
| Blue Line - Branch Line ||||||
| Phase | Extension date | Termini | Termini | Length | Stations |
| II | 6 January 2010 | Yamuna Bank | Anand Vihar | 6.25 km (3.88 mi) | 6 |
| II | 14 July 2011 | Anand Vihar | Vaishali | 2.26 km (1.40 mi) | 2 |
| Total | Total | Yamuna Bank | Vaishali | 8.51 km (5.29 mi) | 8 |
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 kilometres (3.88 mi) 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 (4.14 mi) 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

Karkarduma 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 metres (65 feet 7 inches). Rajouri Garden station on the main line is the third highest station with a height of 17 metres (55 feet 9 inches).

### Line 3 - Main Line

Delhi Metro has parking facilities at 35 metro stations on the Blue line.
Blue Line - Main Line :
| # | Station Name | Station Name | Phase | Opening | Interchange Connection | Station Layout | Platform Level Type | Depot Connection | Depot Layout |
| # | English | Hindi | Phase | Opening | Interchange Connection | Station Layout | Platform Level Type | Depot Connection | Depot Layout |
| 1 | Sahibabad | साहिबाबाद | 4 | 2030 | Delhi-Meerut RRTS | Elevated | Side | None | None |
| 2 | Vasundhara Sector 5 | वसुन्धरा सेक्टर ५ | 4 | 2030 | None | Elevated | Side | None | None |
| 3 | Shakti Khand | शक्ति खंड | 4 | 2030 | None | Elevated | Side | None | None |
| 4 | DPS Indirapuram | डीपीएस इंदिरापुरम | 4 | 2030 | None | Elevated | Side | None | None |
| 5 | Vaibhav Khand | वैभव खंड | 4 | 2030 | None | Elevated | Side | None | None |
| 6 | Noida Electronic City | नोएडा इलैक्ट्रौनिक सिटी | 3 | 9 March 2019 | None | Elevated | Side | None | None |
| 7 | Noida Sector 62 | नोएडा सेक्टर ६२ | 3 | 9 March 2019 | None | Elevated | Side | None | None |
| 8 | Noida Sector 59 | नोएडा सेक्टर ५९ | 3 | 9 March 2019 | None | Elevated | Side | None | None |
| 9 | Noida Sector 61 | नोएडा सेक्टर ६१ | 3 | 9 March 2019 | None | Elevated | Side | None | None |
| 10 | Noida Sector 52 | नोएडा सेक्टर ५२ | 3 | 9 March 2019 | Aqua Line | Elevated | Side | None | None |
| 11 | Noida Sector 34 | नोएडा सेक्टर ३४ | 3 | 9 March 2019 | None | Elevated | Side | None | None |
| 12 | Noida City Centre | नोएडा सिटी सेंटर | 2 | 12 November 2009 | None | Elevated | Side | None | None |
| 13 | Golf Course | गोल्फ़ कोर्स | 2 | 12 November 2009 | None | Elevated | Side | None | None |
| 14 | Botanical Garden | बॉटानिकल गार्डन | 2 | 12 November 2009 | Magenta Line | Elevated | Side | None | None |
| 15 | Noida Sector 18 | नोएडा सेक्टर १८ | 2 | 12 November 2009 | None | Elevated | Side | None | None |
| 16 | Noida Sector 16 | नोएडा सेक्टर १६ | 2 | 12 November 2009 | None | Elevated | Side | None | None |
| 17 | Noida Sector 15 | नोएडा सेक्टर १५ | 2 | 12 November 2009 | None | Elevated | Side | None | None |
| 18 | New Ashok Nagar | नया अशोक नगर | 2 | 12 November 2009 | Delhi-Meerut RRTS | Elevated | Side | None | None |
| 19 | Mayur Vihar Extension | मयूर विहार विस्तार | 2 | 12 November 2009 | None | Elevated | Island | None | None |
| 20 | Mayur Vihar-I | मयूर विहार-१ | 2 | 12 November 2009 | Pink Line | Elevated | Island | None | None |
| 21 | Akshardham | अक्षरधाम | 2 | 12 November 2009 | None | Elevated | Side | None | None |
| 22 | Yamuna Bank | यमुना बैंक | 2 | 10 May 2009 | Blue Line - (Branch Line - Line 4) | At Grade | Island | Yamuna Bank Depot | At Grade |
| 23 | Indraprastha | इंद्रप्रस्थ | 1 | 11 November 2006 | Green Line (Phase 4 - Under Construction) | Elevated | Side | None | None |
| 24 | Supreme Court | उच्चतम न्यायालय | 1 | 11 November 2006 | None | Elevated | Side | None | None |
| 25 | Mandi House | मंडी हाउस | 1 | 11 November 2006 | Violet Line | Underground | Side | None | None |
| 26 | Barakhamba Road | बाराखम्बा मार्ग | 1 | 31 December 2005 | None | Underground | Side | None | None |
| 27 | Rajiv Chowk | राजीव चौक | 1 | 31 December 2005 | Yellow Line | Underground | Side | None | None |
| 28 | Ramakrishna Ashram Marg | रामकृष्ण आश्रम मार्ग | 1 | 31 December 2005 | Magenta Line (Phase 4 - Under Construction) | Elevated | Side | None | None |
| 29 | Jhandewalan | झंडेवालान | 1 | 31 December 2005 | None | Elevated | Side | None | None |
| 30 | Karol Bagh | क़रोल बाग़ | 1 | 31 December 2005 | None | Elevated | Side | None | None |
| 31 | Rajendra Place | राजेंद्र प्लेस | 1 | 31 December 2005 | None | Elevated | Side | None | None |
| 32 | Patel Nagar | पटेल नगर | 1 | 31 December 2005 | None | Elevated | Side | None | None |
| 33 | Shadipur | शादीपुर | 1 | 31 December 2005 | None | Elevated | Side | None | None |
| 34 | Kirti Nagar | कीर्ति नगर | 1 | 31 December 2005 | Green Line | Elevated | Side | None | None |
| 35 | Moti Nagar | मोती नगर | 1 | 31 December 2005 | None | Elevated | Side | None | None |
| 36 | Ramesh Nagar | रमेश नगर | 1 | 31 December 2005 | None | Elevated | Side | None | None |
| 37 | Rajouri Garden | राजौरी गार्डन | 1 | 31 December 2005 | Pink Line | Elevated | Side | None | None |
| 38 | Tagore Garden | टैगोर गार्डन | 1 | 31 December 2005 | None | Elevated | Side | None | None |
| 39 | Subhash Nagar | सुभाष नगर | 1 | 31 December 2005 | None | Elevated | Side | None | None |
| 40 | Tilak Nagar | तिलक नगर | 1 | 31 December 2005 | None | Elevated | Side | None | None |
| 41 | Janakpuri East | जनकपुरी पूर्व | 1 | 31 December 2005 | None | Elevated | Side | None | None |
| 42 | Janakpuri West | जनकपुरी पश्चिम | 1 | 31 December 2005 | Magenta Line | Elevated | Side | None | None |
| 43 | Uttam Nagar East | उत्तम नगर पूर्व | 1 | 31 December 2005 | None | Elevated | Side | None | None |
| 44 | Uttam Nagar West | उत्तम नगर पश्चिम | 1 | 31 December 2005 | None | Elevated | Side | None | None |
| 45 | Nawada | नवादा | 1 | 31 December 2005 | None | Elevated | Side | None | None |
| 46 | Dwarka Mor | द्वारका मोड़ | 1 | 31 December 2005 | None | Elevated | Side | None | None |
| 47 | Dwarka | द्वारका | 1 | 31 December 2005 | Grey Line | Elevated | Side | Dwarka - Najafgarh Depot | At Grade |
| 48 | Dwarka Sector 14 | द्वारका सैक्टर १४ | 1 | 1 April 2006 | None | Elevated | Side | None | None |
| 49 | Dwarka Sector 13 | द्वारका सैक्टर १३ | 1 | 1 April 2006 | None | Elevated | Side | None | None |
| 50 | Dwarka Sector 12 | द्वारका सैक्टर १२ | 1 | 1 April 2006 | None | Elevated | Side | None | None |
| 51 | Dwarka Sector 11 | द्वारका सैक्टर ११ | 1 | 1 April 2006 | None | Elevated | Side | None | None |
| 52 | Dwarka Sector 10 | द्वारका सैक्टर १० | 1 | 1 April 2006 | None | Elevated | Side | None | None |
| 53 | Dwarka Sector 9 | द्वारका सैक्टर ९ | 1 | 1 April 2006 | None | Elevated | Side | None | None |
| 54 | Dwarka Sector 8 | द्वारका सैक्टर ८ | 2 | 30 October 2010 | None | Elevated | Side | None | None |
| 55 | Dwarka Sector 21 | द्वारका सैक्टर २१ | 2 | 30 October 2010 | Airport Express | Underground | Side | None | None |

### Line 4 - Branch Line

Blue Line - Branch Line :
| # | Station Name | Station Name | Phase | Opening | Interchange Connection | Station Layout | Platform Level Type | Depot Connection | Depot Layout |
| # | English | Hindi | Phase | Opening | Interchange Connection | Station Layout | Platform Level Type | Depot Connection | Depot Layout |
| 1 | Yamuna Bank | यमुना बैंक | 2 | 10 May 2009 | Blue Line - (Main Line - Line 3) | At Grade | Side | Yamuna Bank Depot | At Grade |
| 2 | Laxmi Nagar | लक्ष्मी नगर | 2 | 6 January 2010 | None | Elevated | Side | None | None |
| 3 | Nirman Vihar | निर्माण विहार | 2 | 6 January 2010 | None | Elevated | Side | None | None |
| 4 | Preet Vihar | प्रीत विहार | 2 | 6 January 2010 | None | Elevated | Side | None | None |
| 5 | Karkarduma | कड़कड़ डूमा | 2 | 6 January 2010 | Pink Line | Elevated | Side | None | None |
| 6 | Anand Vihar | आनंद विहार | 2 | 6 January 2010 | Pink Line Anand Vihar Anand Vihar Terminal Anand Vihar ISBT | Elevated | Side | None | None |
| 7 | Kaushambi | कौशाम्बी | 2 | 14 July 2011 | None | Elevated | Side | None | None |
| 8 | Vaishali | वैशाली | 2 | 14 July 2011 | None | Elevated | Side | None | None |

## Train Info

Blue Line :
| Rakes | Mitsubishi | Hyundai Rotem | BEML | Bombardier |
| Train Length | 8 | 8 | 8 | 8 |
| Train Gauge | 5 ft 6 in (1,676 mm) broad gauge | 5 ft 6 in (1,676 mm) broad gauge | 5 ft 6 in (1,676 mm) broad gauge | 5 ft 6 in (1,676 mm) broad gauge |
| Electrification | 25 kV, 50 Hz AC through overhead catenary OHE | 25 kV, 50 Hz AC through overhead catenary OHE | 25 kV, 50 Hz AC through overhead catenary OHE | 25 kV, 50 Hz AC through overhead catenary OHE |
| Train's Maximum Speed | 100 km/h | 100 km/h | 100 km/h | 100 km/h |
| Train Operation | Delhi Metro | Delhi Metro | Delhi Metro | Delhi Metro |