India-based GMR has won a Rs72bn ($1.4bn) contract from the National Highway Authority of India (NHAI) to widen the 555km Kishangarh-Udaipur-Ahmedabad highway from four lanes to six lanes.

The highway section is a part of the Delhi-Mumbai Golden Quadrilateral corridor and passes through the Delhi-Mumbai Industrial Corridor.

A major portion of the road widening will be on the 1,428km-long NH-8 that connects the country’s capital with the financial hub while some portions of roads connecting Rajasthan and Madhya Pradesh are also part of project.

The project will be implemented through the public private partnership (PPP) model on design, build, finance, operate and transfer (DBFOT) basis, the company said

The company will construct about 3,336 lane kilometres and operate the highway for 26 years under the concession agreement.

GMR will pay a premium of Rs6.3bn ($127m) for the first year, which will then increase by 5% every year during the concession period.