Pir Panjal Tunnel: 11.2 km in Jammu and Kashmir, connecting Banihal and Qazigund, vital for transportation.
Chenani-Nashri Tunnel: 9.28 km in Jammu and Kashmir, reducing travel time on NH-44.
Jawahar Tunnel: 2.85 km in Jammu and Kashmir, a critical passageway in the Pir Panjal Range.
Nehru Road Tunnel: 2.5 km in Sikkim, improving connectivity to the state's capital, Gangtok.
Banihal-Qazigund Road Tunnel: 2.45 km in Jammu and Kashmir, a parallel tunnel to reduce traffic congestion.
Jogeshwari-Vikhroli Link Road Tunnel: 2.07 km in Mumbai, easing transportation in the city.
Karora Tunnel: 2.03 km in Jammu and Kashmir, enhancing connectivity in the Doda district.
Rohtang Tunnel: 9.02 km in Himachal Pradesh, providing all-weather connectivity to Lahaul-Spiti and Ladakh.
Atal Tunnel: 9.02 km in Himachal Pradesh, connecting Manali to the Lahaul-Spiti region, inaugurated in 2020.
Natham Tunnel: 2.16 km in Tamil Nadu, an important transportation link in the state.