Mumbai: The cabinet committee on economic affairs (CCEA) has approved a Rs5,611-crore project for six-laning 838 km of national highways, including the Gurgaon-Jaipur and Panipat-Jalandhar highways, finance minister P Chidambaram said after the CCEA meeting.

The six-laning of four sections of the existing four-lane national highways will be taken up under the public-private partnership (PPP) model, the minister said.

Six-laning of the 225.6 km Gurgaon-Kotputli-Jaipur national highway alone is estimated to cost Rs1,517 crore.

The projects, to be taken up under the National Highways Development Project (NHDP) at an estimated cost of Rs 5,610.77 crore, will also cover 239 km Surat-Dahisar national highway (Rs1,355.47 crore), 82.5 km of the Chilkaluripet-Vijaywada highway in Andhra Pradesh (Rs540.30 crore) and the 291 km Panipat-jalandhar national highway, at an estimated cost of Rs2,198 crore.