Pinsent Masons has scooped an eye-catching role on one of India's largest-ever transport projects with the national firm advising on the £614m redevelopment of Delhi International Airport.

The UK giant's Dubai arm, which trades as Masons Galadari, is acting for regular client Delhi International Airport (DIA).

The project, which was announced last month, will double the capacity of the existing airport and is a key plank of a long-term programme of investment in India's capital city as it gears up to host the 2010 Commonwealth Games.

The work will include the construction of a new 4.4km runway, one of the longest in Asia, and a third 4.8 million sq ft terminal as well as a highway and multistorey car park. Work has already begun on the new-look airport, which is expected to cater for around 37 million passengers a year.

Pinsents construction partner Martin Harman and senior associate Sachin Kerur took the key roles on the deal, which generated additional roles for DIA's local advisers in India.

Pinsents fielded a team from across its international network, including lawyers from London and Hong Kong-based senior construction associate Nicholas Brown.

Indian construction company Larsen Toubro, which scooped the lead contract for the project, was advised by its in-house legal team.

The deal maintains the robust run for the UK firm's projects and infrastructure team, which is regarded to have been one of the main beneficiaries of the 2004 tieup between Pinsents and Masons.

In 2006, the firm boosted its international transport credentials by winning a role on South Africa's $3.3bn (£1.8bn) funded Gautrain rail link project.

Pinsents has also been active in the international aviation sector following similar instructions for airports in Cyprus, Beirut and Kuala Lumpur.

Kerur commented: "This project is testament to our credentials as leading advisers on some of the world's major transport infrastructure projects."