Tube Lines, which maintains London Underground trains, tracks and stations on three lines, has signed a three year outsourcing extension with Capgemini.

Under the £10.5 million deal, Capgemini will maintain Tube Lines’ infrastructure and network. The extension of the deal also adds application services and service desk support for Tube Lines’ 2,500 office based staff.

Tube Lines may also consider moving some of its applications to the cloud, though a final decision has not been taken.

Most of Capgemini’s work will be carried out from Tube Lines premises and Capgemini sites in the UK, with some support from India and Poland. Subcontractors on the work include BT Engage, InTechnology and Servo.

Last year Tube Lines was acquired by Transport for London, which manages the Underground and other public transport services. Tube Lines runs infrastructure on the Jubilee, Northern and Piccadilly Lines.

A year earlier, Tube Lines said it had cut 25 percent from IT costs since 2007, through a VMware virtualisation project alongside other system changes. A desktop software refresh completed this year saw it update its 3,000 machines from Microsoft Windows XP to Vista.