What Happened
- According to data presented to the Lok Sabha on February 9, 2026, India's seven mega cities now have a combined forest cover of 511.81 square kilometres — representing 10.26% of their total geographical area.
- This marks an increase of 2.09 sq km compared to the India State of Forest Report (ISFR) 2021 assessment, as per data from ISFR 2023.
- The seven mega cities assessed are: Bengaluru, Chennai, Delhi, Kolkata, Hyderabad, Mumbai, and Ahmedabad.
- Delhi has the largest forest cover among the six originally tracked mega cities (194.15 sq km), followed by Mumbai (110.84 sq km) and Bengaluru (89.61 sq km).
- Additional parliamentary updates on the same day: Of 609,886 industries in India, approximately 544,364 are operational; 23,981 were found non-compliant with environmental standards.
- India's renewable energy capacity stood at 51.93% of total installed capacity (513,730 MW total), with 48,436 MW of renewable capacity added in 2025.
- The Finance Ministry released ₹77,089.05 crore over three years (2022-25) as central assistance for disaster response across states.
Static Topic Bridges
India State of Forest Report (ISFR) and Forest Survey of India
The ISFR is the definitive biennial assessment of India's forest and tree cover, produced by the Forest Survey of India (FSI) under the Ministry of Environment, Forest and Climate Change.
- Forest Survey of India (FSI): Established in 1981 (succeeding the Pre-Investment Survey of Forest Resources), headquartered in Dehradun. Conducts biennial forest cover assessments using satellite remote sensing + National Forest Inventory (NFI) field data.
- ISFR 2023 (18th report): Total forest and tree cover = 8,27,356.95 sq km = 25.17% of India's geographical area. Total forest cover alone = 7,15,342.61 sq km (21.76%).
- Forest cover definitions:
- Very Dense Forest (VDF): Canopy density >70%
- Moderately Dense Forest (MDF): Canopy density 40-70%
- Open Forest (OF): Canopy density 10-40%
- Scrub: Canopy density <10%
- Tree Cover: Trees outside forests (single tree to <1 ha patches)
- Minimum mapping unit: 1 hectare (areas smaller than 1 ha are classified as tree cover, not forest).
- ISFR 2023 showed forest cover increase of 1,445 sq km over ISFR 2021.
Connection to this news: The parliamentary data on mega city forest cover draws directly from ISFR 2023. The marginal 2.09 sq km gain over two years in seven of India's largest cities underscores the slow pace of urban greening relative to urbanisation pressures.
Urban Forests and Their Ecological Services
Urban forests — trees, woodlands, and green spaces within and around cities — provide multiple ecosystem services critical to urban wellbeing, and are increasingly incorporated into climate adaptation strategies.
- Ecosystem services of urban forests: Air quality regulation (particulate matter absorption), urban heat island (UHI) mitigation, stormwater management, carbon sequestration, biodiversity habitat, noise buffering, and psychological wellbeing.
- Urban Heat Island (UHI) effect: Dense built-up areas absorb and re-emit more heat than surrounding rural areas; urban forests can reduce surface temperatures by 2-8°C in their immediate vicinity.
- National Urban Forest Mission (NUFM, 2015): Aims to develop urban forests on government land in cities; administered by MoEFCC with municipal bodies as implementers.
- Cities like Delhi and Mumbai benefit from ridge forests and coastal mangroves respectively — both critical ecological buffers now threatened by infrastructure expansion.
- The Nagar Van (Urban Forest) Scheme (2020) targets development of 200 urban forests across India by 2025.
Connection to this news: The 511.81 sq km total urban forest across seven mega cities — of which Delhi alone accounts for 38% — highlights extreme unevenness. The marginal 2.09 sq km gain also raises questions about whether NUFM and Nagar Van targets are being met at the pace required to counter rapid urban expansion.
Industrial Pollution Compliance and Regulatory Architecture
Parliament's disclosure that 23,981 of 544,364 operational industries were non-compliant with environmental norms highlights the scale of India's industrial pollution enforcement challenge.
- Regulatory structure: Central Pollution Control Board (CPCB) under the Environment Protection Act 1986; State Pollution Control Boards (SPCBs) under the Water Act 1974 and Air Act 1981 for state-level implementation.
- Industries are classified as Red (highly polluting), Orange, Green, and White under CPCB's colour-coded categorisation, based on Pollution Index scores.
- Consent to Establish (CTE) and Consent to Operate (CTO): Industries must obtain these from SPCBs; non-compliance triggers closure notices, penalties, or criminal prosecution.
- Common effluent treatment plants (CETPs) serve industrial clusters (e.g., textile dyeing in Tiruppur, leather tanning in Kanpur) where individual ETPs are not viable.
- The National Green Tribunal (NGT) regularly takes suo motu cognisance of industrial pollution from media reports and public petitions.
Connection to this news: With ~4.4% of operational industries (23,981 out of 544,364) non-compliant, Parliament's data reveals a persistent enforcement gap — relevant for UPSC questions on regulatory capacity, cooperative federalism (centre-state pollution control), and the role of NGT in filling oversight deficits.
Key Facts & Data
- India's seven mega cities: Bengaluru, Chennai, Delhi, Kolkata, Hyderabad, Mumbai, Ahmedabad.
- Total urban forest cover (7 cities): 511.81 sq km = 10.26% of their total geographical area.
- Change from ISFR 2021 to ISFR 2023: +2.09 sq km.
- Delhi (largest): 194.15 sq km; Mumbai: 110.84 sq km; Bengaluru: 89.61 sq km.
- ISFR 2023 (18th report): Total national forest cover = 7,15,342.61 sq km (21.76% of India).
- National forest cover increase (ISFR 2021→2023): +1,445 sq km.
- FSI established: 1981; headquartered in Dehradun under MoEFCC.
- Industry compliance: 609,886 industries total; 544,364 operational; 23,981 non-compliant.
- India's renewable energy capacity (December 2025): 51.93% of 513,730 MW total installed capacity.
- Renewable capacity added in 2025: 48,436 MW.
- Disaster response central funds (2022-25): ₹77,089.05 crore.