Plan to cater to traffic needs The Ministry of Road Transport & Highways has undertaken detailed review of National Highway(NH) network with a view to improve connectivity in border area including coastal boundaries, major centres of tourism, pilgrimage, minor ports and under developed areas. This covers about 15000 Km of NHs at estimated cost of Rs. 1,90,000 crores. This information was given by Minister of State for Road Transport & Highways, Shri Pon. Radhakrishnan in a written reply to a question in the Rajya Sabha today.