National Highway 1 (India)
National Highway 1 (NH 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.
Source: Wikipedia — National Highway 1 (India) (CC BY-SA 4.0)