The Indian government will launch a pilot project to test a new open road tolling system on three national highways as part of plans for a nationwide-rollout of the system.

The six-month project involves testing the passive and calm tolling systems on three stretches of the highways.

The active tolling system, based on microwave tag-based technology that sends or receives signals, will be tested on the Gurgaon-Jaipur stretch.

The passive system, also based on microwave technology but only to send signals, will be tested on the Panipat-Jalandhar stretch.

The calm system, an infrared-based system that sends and receives signals and works on an optical fibre network, will undergo testing on the Surat-Dasihar stretch.

The tests will be carried out by the Ministry of Road, Transport and Highways starting at the end of October.

The country has a toll plaza every 60km.