However, after a few minutes, the mass transit agency said that normal services were restored on the line.
"Airport Line Update -- Normal service has resumed," read another tweet by DMRC.
The 22.7 km Airport Express Line, also known as the Orange Line, connects New Delhi Railway Station with Dwarka Sector 21. It crosses T3 terminal of Indira Gandhi International Airport and Delhi Aerocity, where a feeder bus connects it to the airport's T1 terminal.
There are three interchange stations on this line -- Dwarka Sector 21 (Blue Line), Dhaula Kuan (Pink Line) and New Delhi (Yellow Line).
Currently, while it takes just three minutes from Dwarka Sector 21 to T3 Airport station, a journey from New Delhi to the airport takes around 18 minutes.
The Airport Express Line is being extended to ECC Centre in Dwarka Sector 25, where a convention centre is under construction and will be ready in few years. Services are expected to commence in 2020-21.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)