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India has 599 National Highways covering 1,46,145 km. Check renumbered routes, state-wise length, and key facts about National Highways in India 2025. The National Highways Act, 1956 [6] provided for public i.e. state investment in the building and maintenance of the highways. The National Highways Authority of India was established by the National Highways Authority of India Act, 1988. Section 16 (1) of the Act states that the function of NHAI is to develop, maintain, and manage the National Highways and any other highways vested in, or entrusted to, it by the Government of India. In 1998 India launched a massive program of highway ... An apex organisation under the Central Government, is entrusted with the task of formulating and administering, in consultation with other Central Ministries/Departments, State Governments/UT Administrations, organisations and individuals, policies for Road Transport, National Highways and Transport Research with a view to increasing the mobility and efficiency of the road transport system in the country. The Ministry has two wings: Roads wing and Transport wing. Read about the List of Important National Highways in India. Learn about the longest and shortest national highways in India. Check out State-Wise National Highways Length. This detailed guide is useful for the Geography segment of the IAS Exam.