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VOL. I · EST. 11.2025 
SatyaDheesh
सत्याधीश
India's Ground Truth Record
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India's First 8-Lane Highway Tunnel Under a Tiger Reserve Ready to Open: How This ₹1,250 Crore Engineering Marvel Bypasses Danger Zones

GS3Economy · S&T · Environment · Security· Infrastructure (energy, ports, roads, railways)· Prelims·

Why in news

NHAI is set to open India's first 8-lane highway tunnel under a tiger reserve in Rajasthan's Kota district to facilitate safe transit through the Mukundra Hills.

Background

The 4.89-kilometer tunnel is part of the 1,386-kilometer Delhi-Mumbai Expressway. It traverses diverse geological substrates including sandstone, shale, siltstone, mudstone, and limestone, with cut-and-cover sections designed for wildlife passage.

Facts for Prelims

  • BodyNHAI: National Highways Authority of India is the primary body responsible for the Delhi-Mumbai Expressway project.
  • PlaceMukundra Hills: Located in Rajasthan's Kota district, it serves as a critical tiger habitat.
  • FactThe Delhi-Mumbai Expressway is a 1,386-kilometer project designed to reduce travel time to approximately 12 hours.
  • FactThe tunnel length is 4.89 kilometers and is part of an 8.3-kilometer section passing through the tiger reserve.

For Mains

Q. Discuss the engineering and ecological challenges of developing large-scale infrastructure projects in ecologically sensitive zones like tiger reserves in India.

Dimensions to cover in your answer

  • Ecological fragmentation: Balancing high-speed connectivity with the need for uninterrupted wildlife corridors and habitat connectivity.
  • Regulatory compliance: Adhering to forest conservation norms while meeting national infrastructure goals for logistical efficiency.

Keywords: Ecologically sensitive zones · Wildlife corridors · Infrastructure development · Geological substrates · Sustainable connectivity

Read the full news →Report a mistake in this noteSource: Indian Express ↗Also: GS3 · Species, protected areas & wetlandsAlso: GS1 · Places in news / mapping

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