Highway 1 is a major highway in India, stretching from the northernmost tip of the country to the southernmost state. It is a major route for travelers, connecting cities and towns along the way. It is also a major trade route, allowing goods and services to be transported between different
From Wikipedia
National Highway 1 in India runs between the union territories of Jammu & Kashmir and Ladakh. It comprises parts of old NH1A and NH1D. The number 1 indicates, under the new numbering system, that it is the northernmost East–west highway in India.