The National Highways Authority of India (NHAI) is an autonomous agency of the Government of India established in 1988 under the National Highways Authority of India Act, 1988. Functioning under the Ministry of Road Transport and Highways (MoRTH), NHAI is responsible for the development, maintenance, management, and modernization of India's National Highway network.

Headquartered in New Delhi, NHAI plays a pivotal role in enhancing road infrastructure across the country through landmark initiatives such as the National Highways Development Project (NHDP), Bharatmala Pariyojana, Expressway Development Program, and Intelligent Transportation Systems. The authority is responsible for planning, construction, operation, and maintenance of thousands of kilometers of highways, expressways, tunnels, bridges, and related infrastructure that facilitate economic growth and connectivity.

NHAI is recognized for implementing world-class engineering practices, digital tolling systems, sustainable infrastructure development, and public-private partnership (PPP) projects. The organization offers excellent career opportunities for engineers, project managers, finance professionals, legal experts, IT specialists, environmental experts, and administrative personnel.