The Ministry of Shipping, Road Transport and Highways has decided to widen 5,000 km of National Highways, which are 4-laned roads at present to 6-lanes on build, operate and transfer (BOT) basis under the National Highway Development Policy (NHDP) V. The Government has decided that all the projects included in NHDP III to VII will now be taken under BOT basis. NHDP Phase III to VII, all of which are expected to be completed by 2007, are estimated to cost about Rs 1,72,000 crore.