Bilaspur-Manali-Leh Railway

The Bilaspur-Manali-Leh Railway is a 465 km strategic Himalayan railway under construction connecting Bilaspur in Himachal Pradesh to Leh in Ladakh — at altitudes up to 5,400 m (17,700 ft), it will be the highest-altitude railway in the world when complete (surpassing China's Qinghai-Tibet Railway at 5,072 m).

The project was sanctioned in 2022 immediately after the 2020 India-China Galwan standoff highlighted the strategic vulnerability of Ladakh's road-only access. The new railway would provide all-weather rail connectivity to forward Indian Army positions on the Sino-Indian border — critical capability for sustained military supply during winter months when current road access is severely limited.

IRCON is the lead executing agency. Total estimated project cost: ₹83,360 crore — among the most expensive Indian Railways projects per km (~₹180 crore/km vs typical ₹40-60 crore/km for plains). The high cost reflects the extreme engineering challenges:

- Altitudes of 3,500-5,400 m for ~70% of the alignment — requiring specialised cold-resistant materials + insulated trainsets - Active landslide zones throughout the Beas + Chenab river valleys - Zone V seismic exposure with frequent significant tremors - 75 + tunnels totalling ~150 km of tunnel works (~32% of alignment) - 124 major bridges + viaducts including 50+ at altitudes above 4,000 m - Design temperatures from -40°C in winter to +35°C in summer

Final commissioning target: 2030, with phased opening of operational segments from 2027 onwards. The railway will use specialised cold-resistant rolling stock currently under design at ICF Chennai, with provisions for emergency oxygen supply on board (similar to Qinghai-Tibet Railway practice).