Supreme Court Upholds Environmental Clearance for Kozhikode‑Wayanad Tunnel – Project Deemed National Importance

Key Insight

Supreme Court backs tunnel’s environmental clearance, underscoring development‑environment balance

Key Facts

1. April 2026: Supreme Court (CJI Surya Kant & Justice Joymalya Bagchi) upheld the Environmental Clearance (EC) for the 8.735 km Kozhikode‑Wayanad twin‑tube tunnel.
2. The tunnel is classified as a Category A project under the Environmental Impact Assessment (EIA) regime, cleared by the Central Expert Appraisal Committee (CEAC) and State Expert Appraisal Committee (SEAC) with strict safeguards.
3. The alignment cuts through the ecologically sensitive Western Ghats, a UNESCO World Heritage biosphere, raising concerns of landslides and loss of rare flora and fauna.
4. The Court directed that any violation of EC conditions can be taken up before the National Green Tribunal (NGT).
5. Petitioners (Wayanad Prakrithi Samrakshana Samiti) were allowed liberty to approach the NGT for enforcement of EC conditions.
6. The project was declared of "national importance" for Kerala’s connectivity, aiming to reduce land‑acquisition challenges and severe road congestion.
7. Legal backdrop: Petition challenged the High Court’s December 2025 judgment; the Supreme Court upheld the High Court’s decision in April 2026.

Background

The case highlights the multi‑tiered environmental governance framework in India – from EIA categorisation (Category A/B) and expert appraisal committees (CEAC/SEAC) to judicial oversight by the Supreme Court and remedial jurisdiction of the NGT. It exemplifies the tension between large‑scale infrastructure development and conservation of biodiversity hotspots like the Western Ghats, a recurring theme in GS‑3 and GS‑2 syllabi.

UPSC Syllabus

• GS3 — Environmental Impact Assessment
• Essay — Environment and Sustainability
• GS3 — Conservation, environmental pollution and degradation
• GS2 — Functions and responsibilities of Union and States
• Prelims_GS — Constitution and Political System
• GS2 — Constitutional posts, bodies and their powers and functions
• Essay — Philosophy, Ethics and Human Values
• GS2 — Dispute redressal mechanisms and institutions