The Indira Gandhi International (IGI) airport here will have a driverless metro which will help travellers transit from one terminal to another.

The Automated People Mover (APM) is expected to be made available by 2020 as per the recommendation of Master Plan, 2016, Minister of State for Civil Aviation Jayant Sinha said in a written reply in Lok Sabha on Thursday.

The design, project cost and other details have been finalised, he said.

Delhi International Airport Limited, the GMR-led joint venture consortium which manages IGI, has already taken steps to explore all technical possibilities with Delhi Metro Rail Corporation, Sinha said.

"The total length of the proposed APM alignment is 5.5 km out of which 1.5 km is underground and 4 km is elevated," added Sinha.

This service will bring IGI on a par with some of the swankiest airports across the world, such as Hong Kong, Changi Paris, Munich, London, which also provide this facility.