New Delhi, March 3 -- India is preparing for one of the biggest overhauls of its highway tolling architecture since the rollout of FASTag. Instead of the previously considered Global Navigation Satellite System-based tolling model, the ministry of road transport and highways and the National Highways Authority of India (NHAI) now plan to implement the Multi-Lane Free-Flow electronic toll collection system across the country's 146,560-km national highway network. Barriers at toll plazas will be replaced with overhead gantries equipped with advanced cameras and RFID readers.

While the technology promises seamless travel at highway speeds, security concerns over imported high-speed cameras and the need for vendor certification have added co...