India`s road network has grown 59 per cent to become the second largest in the world as part of the development work carried out by the government in the last nine years, Union Minister Nitin Gadkari said. India has nearly 64 lakh km of total road network, which is the second largest in the world. India`s National Highways network alone stood at 1,45,240 km today compared to 91,287 km in 2013-14, the Road, Transport and Highways Minister said. He was addressing a conference on `9 Years of the Modi Government` in the national capital.