The project is passing through Jammu & Kashmir and Himachal Pradesh states and is located along the Bilaspur – Manali – Leh corridor with an approximate length of 475 km.

Especially the Manali – Leh section of the project alignment poses extremely challenging conditions, including high-altitude, lack of oxygen, severe weather conditions and limited access. The project will be the highest railway line in the world, when completed, and approximately 50% of the project will be through tunnels.