The correct answer is: B. 528
The National Highways Authority of India (NHAI) is a statutory body of the Government of India that is responsible for the planning, development, operation, maintenance, and management of national highways in India. As of 2022, there are 528 national highways in India, with a total length of 1,40,000 kilometers.
The national highways are classified into two categories:
- National Highways (NHs): These are the major highways that connect the major cities and towns in the country.
- National Highways-cum-Expressways (NH-Expressways): These are the highways that have been upgraded to expressway standards.
The national highways are maintained by the NHAI, which is responsible for ensuring that they are in good condition and that they are able to handle the increasing traffic. The NHAI also undertakes various projects to improve the national highways, such as widening them, constructing bypasses, and building flyovers.
The national highways are an important part of the Indian transportation system. They provide a vital link between the different parts of the country and they play a major role in the economic development of the country.