Grey Line (Delhi Metro)

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Grey Line (Line 9)
TypeRapid Transit
StatusPartially Operational
Stations3 (operational)
1 (under constuction)
Opened4 October 2019 (DwarkaNajafgarh)
OwnerDelhi Metro
Operator(s)Delhi Metro Rail Corporation
CharacterUnderground & Elevated
Line length4.295 km
Track gauge1,435 mm (4 ft 8 12 in) Standard gauge
Electrification25 kV, 50 Hz, AC overhead catenary
Operating speed90 Km/h

The Grey Line (Line 9) is a line of the Delhi Metro that connects Dwarka to Najafgarh in the western part of Delhi, India. The line was opened to the public on 4 October 2019 at 5 PM in evening. A further extension to Dhansa Bus Stand is scheduled to open in December 2020.

The line has a single interchange to the rest of the Delhi Metro network at Dwarka station, connecting to the Blue Line. Grey Line uses standard gauge track, while the Blue Line was built with wider Indian gauge tracks.

The line uses the same rolling stock used on Pink and Magenta lines,although no Platform Screen Doors have been installed due to low ridership projections.

The Dwarka Station is the only station in the network to have five platforms on the same level(2 are for the Blue Line,2 for the grey line,and the third one connects the Blue Line with the Najafgarh Depot)


Delhi Metro Grey Line
Dhansa Bus Stand

The stations for the Grey Line are:[1]

Grey Line
# Station Names Phase Opening Interchange


Station Layout Platform Level Type Depot Connection Depot Layout
1 Dwarka द्वारका 3 4 October 2019  Blue Line  Elevated Side Dwarka - Najafgarh


At Grade
2 Nangli नंगली 3 4 October 2019 None Elevated Side None None
3 Najafgarh नजफगढ़ 3 4 October 2019 None Underground Island Dwarka - Najafgarh


At Grade
4 Dhansa Bus Stand ढांसा बस स्टैंड 3 December 2020 None Underground Island None None

Najafgarh station was initially planned in the regular rectangle shape. However, when the construction work began on-ground, some of the private land could not be acquired for the project.

Due to this, Delhi metro had no other option but to plan the metro station with the land which was available to them. The dumbbell shaped station will be completed in such a way that the station area will shrink by a few metres in the middle.


  1. ^ "Metro Network Phase I, II, III & NCR" (pdf). Delhi Metro Rail Corporation Ltd (DMRC). February 2015. Retrieved 28 June 2015.