Indian roads are classified into three types – national highways, State highways, District and rural roads. The National Highways encompass a road length of only 66.8. thousands Kms or 1.5 per cent of the length of the total road system but they carry nearly 40 per cent of the goods and passenger traffic. The national highway system is the primary road grid and is the direct responsibility of the Central Government.
The state highway account for nearly 154.5 kms. or about 3.8 per cent of the total length of roads. The construction and maintenance of these roads are the responsibility of the states.
Besides, there are rural roads constructed under Minimum needs programme (MNP), Rural Landless Employment Guarantee Programme (RLEGP), National Rural Employment programme (NREP) and command area Development (CAD). In all these cases, the objective of road construction is linking villages in the country.