From Patalpani to Atal: Top 10 longest tunnels in India

Top 10 Longest Tunnels in India

India’s challenging landscapes have given rise to remarkable engineering feats, with tunnels playing a crucial role in enhancing connectivity and reducing travel time. From the snow-covered Himalayas to the verdant Western Ghats, these tunnels are not just passageways but gateways to India's natural beauty and strategic growth. Here's a look at the top 10 longest tunnels in India.

1. Patalpani Rail Tunnel (14 km)
Set to become one of the longest railway tunnels in the world upon its completion by 2025, the Patalpani Rail Tunnel will connect Indore and Mumbai. The tunnel will not only improve rail efficiency but also offer scenic views of the famed Patalpani waterfall, making it a blend of utility and beauty.

2. Tunnel T-49 (12.7 km)
The Tunnel T-49, part of the Udhampur-Srinagar-Baramulla rail project, is India’s longest transportation tunnel. Traversing the Pir Panjal range in Jammu and Kashmir, it will ease travel in one of the country’s most challenging terrains.

3. Pir Panjal Railway Tunnel (11.21 km)
Also known as the Qazigund Tunnel, this engineering marvel is part of the Jammu-Baramulla railway line. It reduces travel time between Banihal and Qazigund, ensuring smoother and quicker journeys through the Pir Panjal range.

4. Syama Prasad Mookerjee Tunnel (9.028 km)
Inaugurated in 2017, this road tunnel bypasses the dangerous Patnitop route on NH 44 in Jammu and Kashmir. With advanced safety systems, it provides a safer and more efficient alternative for travelers.

5. Atal Tunnel (9.02 km)
An engineering marvel at high altitude, the Atal Tunnel connects Manali to the Lahaul-Spiti valley. Operational since 2020, this all-weather tunnel reduces travel time by four hours and has become a lifeline for the region.

6. Trivandrum Port Tunnel (9.02 km)
Under construction in Kerala, this tunnel is designed to enhance cargo movement between Trivandrum Port and the hinterlands. It is a major step in boosting logistics infrastructure in the region.

7. Banihal Qazigund Road Tunnel (8.45 km)
Opened in 2021, this road tunnel bypasses the snow-bound Jawahar Tunnel, reducing the distance between Banihal and Qazigund by 16 km. It ensures uninterrupted connectivity throughout the year.

8. Sangaldan Railway Tunnel (7.1 km)
Part of the Udhampur-Srinagar-Baramulla rail link, the Sangaldan Tunnel traverses the rugged Pir Panjal range, improving connectivity and boosting the rail network in Jammu and Kashmir.

9. Rapuru Tunnel (6.6 km)
Located in Andhra Pradesh, the Rapuru Tunnel is India’s longest electrified railway tunnel. Opened in 2019, it enhances connectivity between Krishnapatnam Port and the hinterlands, supporting trade and logistics.

10. Karbude Tunnel (6.5 km)
A vital part of the Konkan Railway, the Karbude Tunnel has been operational since 1997. This 6.5 km tunnel cuts through the Western Ghats, ensuring smooth transit through the rugged terrain.

India’s longest tunnels are more than just infrastructural achievements; they symbolize the nation’s ability to overcome geographical challenges while fostering economic growth and connectivity. Whether you’re an engineer marveling at the ingenuity or a traveler seeking new adventures, these tunnels showcase India’s relentless progress and natural beauty.