What Happened
- The Supreme Court of India (bench of CJI Surya Kant, Justice Joymalya Bagchi, and Justice Vipul Pancholi) refused to interfere with the Bombay High Court's December 12, 2025 order allowing the Brihanmumbai Municipal Corporation (BMC) to remove over 45,000 mangrove trees for the proposed Versova–Bhayandar Coastal Road project.
- The court held that the High Court had imposed "adequate conditions" including mandatory compensatory afforestation and ten years of annual status reports on mangrove restoration.
- Of approximately 60,000 mangroves in the project corridor, the BMC proposes to divert over 45,000 trees (transplant or clear) and fell approximately 9,000; the ₹18,263 crore project will run from Versova through Mumbai's western suburbs to Mira–Bhayandar.
- The plea was filed by NGO Vanashakti, which argued the destruction of mature mangrove ecosystems cannot be compensated by planted saplings.
- The Supreme Court noted the project's "significant and beneficial impact on the general public" by decongesting the Western Express Highway.
Static Topic Bridges
Coastal Regulation Zone (CRZ) Notification 2019 and Mangrove Protection
The CRZ Notification 2019, issued under the Environment (Protection) Act, 1986, replaced the earlier CRZ Notification 2011. Under the 2019 notification, mangroves — regardless of extent — are classified as CRZ-I (A), the highest protection category reserved for ecologically sensitive areas (ESAs). A buffer zone of 50 metres is mandated around mangrove patches exceeding 1,000 sq metres, and this buffer zone also attracts CRZ-I (A) status. No development activity is ordinarily permissible in CRZ-I areas. However, coastal road and port infrastructure can receive project-specific environmental clearances if conditions including compensatory plantation are imposed — the mechanism used in this case.
- CRZ-I (A) includes: mangroves, coral reefs, national parks/wildlife habitats, sand dunes, and ecologically sensitive areas notified by Central/State Governments
- Compensatory plantation requirement: minimum 3 times the mangrove area affected must be planted (as per CRZ 2019 for STPs; ratio for road projects can differ)
- Coastal Management Zones (CMZ) were proposed as replacements for CRZ in 2008 (M.S. Swaminathan committee) but never notified — CRZ framework remains in force
- Maharashtra has a Mangrove Cell under the state Forest Department, mandated by Bombay High Court to protect and restore mangroves
Connection to this news: The Supreme Court's decision effectively allows an exception to CRZ-I (A)'s prohibitory regime for a declared public interest project, setting a significant precedent on the scope of compensatory afforestation as a mitigation tool.
Mangroves — Ecological Functions and IUCN Status
Mangroves are intertidal wetland forests found in tropical and subtropical coastal zones. India's mangrove cover is approximately 4,992 sq km as of the India State of Forest Report 2023 — the fifth-largest in the world and the third in Asia. India's mangroves are distributed across West Bengal (Sundarbans, largest), Gujarat, Andaman and Nicobar, Andhra Pradesh, and Maharashtra (including the Thane Creek mangroves adjacent to the Mumbai project). Mangroves provide ecosystem services valued at $194,000 per hectare per year globally (World Resources Institute), including storm buffering, carbon sequestration (blue carbon), coastal erosion control, and fishery nursery habitat.
- IUCN: Mangrove ecosystems are not listed as a single species but the Mangrove Specialist Group tracks ecosystem health; several associated species are endangered
- India's mangrove cover: 4,992 sq km (2023), up from 4,921 sq km (2021) — a modest increase
- Thane Creek Flamingo Sanctuary (adjacent to project area): Important Bird and Biodiversity Area (IBA) and Ramsar Wetland, home to ~100,000+ flamingos annually
- Carbon sequestration: mangroves store 3–5 times more carbon per unit area than tropical forests
- Maharashtra Mangrove Conservation Act, 2018 (state law) further restricts destruction of mangrove areas notified by the state
Connection to this news: The 45,675 mangroves targeted are part of Mumbai's last significant mangrove belt, which also buffers the Thane Creek Ramsar site, raising concerns about compounding ecological impacts beyond the direct footprint.
Supreme Court's Environmental Jurisprudence — Public Trust Doctrine and Precautionary Principle
India's environmental jurisprudence draws on two key doctrines: the Public Trust Doctrine (PTD) and the Precautionary Principle. The PTD, first applied in M.C. Mehta v. Kamal Nath (1997), holds that the State holds natural resources — air, water, seashores, and forests — in trust for the public and cannot transfer them for private use at the expense of public interest. The Precautionary Principle, incorporated into Indian law through Vellore Citizens Welfare Forum v. Union of India (1996), requires that where there is a threat of serious or irreversible environmental damage, lack of full scientific certainty shall not be used as a reason to postpone preventive measures. Critics of the Supreme Court order argue that allowing 46,000 mature mangroves to be removed violates both doctrines.
- T.N. Godavarman Thirumulpad v. Union of India (1995): landmark ongoing case where Supreme Court has supervised forest governance since 1996
- National Green Tribunal (NGT) Act, 2010: provides a specialised forum for environmental disputes; NGT orders can be challenged before the Supreme Court
- Compensatory Afforestation Fund Management and Planning Authority (CAMPA) disburses funds for afforestation when forest land is diverted — similar mechanism applies here
- Vanashakti (NGO petitioner): has successfully litigated multiple mangrove protection cases before the Bombay High Court and NGT previously
Connection to this news: The court's deference to the High Court's conditions-based approval tests the outer limits of the precautionary principle — whether compensatory planting satisfies the "preventive measure" standard for an irreversible action.
Key Facts & Data
- Project: Versova–Bhayandar Coastal Road; estimated cost ₹18,263 crore
- Mangroves proposed for removal: ~45,675 (diversion/transplant) + ~9,000 (felling) out of ~60,000 total in corridor
- Court bench: CJI Surya Kant, Justice Joymalya Bagchi, Justice Vipul Pancholi
- Bombay HC order date: December 12, 2025; SC refused to stay — March 2026
- Petitioner: NGO Vanashakti
- BMC condition imposed: annual status reports for 10 years on mangrove restoration progress
- India's total mangrove cover (2023): 4,992 sq km (5th largest globally)
- Maharashtra Mangrove Cell: established by Bombay HC order to protect coastal wetlands
- Thane Creek Flamingo Sanctuary: Ramsar Wetland adjacent to project area
- CRZ-I (A) classification: highest protection category under CRZ Notification 2019
- Mangrove ecosystem services value: ~$194,000 per hectare per year (WRI estimate)