UPPSC PYQ 1 (2020) — Geography
Which of the following ocean currents is associated with Indian Ocean?
- Florida current
- Canary current
- Agulhas current
- Kurile current
Answer: C. Agulhas current
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India's rarest large waterbird, the white-bellied heron (Ardea insignis), faces a fresh threat after the Forest Advisory Committee (FAC) granted in-principle forest clearance to the 1,200 MW Lohit hydropower project in Arunachal Pradesh in December 2025 — even though the project's environmental assessment reportedly omitted this Critically Endangered species entirely. India's white-bellied heron population stands at just 6 to 9 individuals, and nearly 70% of them are concentrated in the Lohit river basin, the very landscape the project will alter. THDC India Ltd, the project developer, still awaits final forest clearance, but the in-principle approval already signals how the process is likely to conclude, reigniting debate over how hydropower expansion in the ecologically fragile Eastern Himalaya is weighed against irreversible biodiversity loss.
For aspirants preparing for UPSC, UPPSC, MPSC and other state PSC exams, this topic is directly relevant for GS Paper 3 (Environment, Biodiversity & Conservation) and frequently appears as a species-in-news prelims question.
The white-bellied heron is one of the rarest birds on Earth, listed as Critically Endangered by the IUCN since 2007. It is a large, slate-grey heron historically found across Bhutan, north-east India, Myanmar, and Bangladesh, but its range has contracted sharply over recent decades due to habitat loss, river disturbance, and hunting pressure. In India, it survives almost exclusively along undisturbed, slow-flowing rivers in Arunachal Pradesh and Assam, and the Lohit river basin has emerged as its last major Indian stronghold, sheltering roughly 70% of the country's tiny population of 6 to 9 birds. The species depends on large stretches of undisturbed riverine forest and stable water flow, which makes it acutely vulnerable to any dam construction, flow regulation, or forest clearing in its habitat. Under Indian law, it holds the highest level of protection available to a wild species, being listed in Schedule I of the Wildlife (Protection) Act, 1972.
The proposed Lohit hydropower project is a 1,200 MW scheme being developed by THDC India Ltd, a public sector hydropower company, on the Lohit river in Arunachal Pradesh. Because the project requires diverting forest land for the dam, reservoir, and associated infrastructure, it needed clearance under the Forest (Conservation) Act, 1980, which mandates review by the Forest Advisory Committee (FAC) — a statutory body under the Ministry of Environment, Forest and Climate Change (MoEFCC) — before any non-forest use of forest land can proceed. In December 2025, the FAC granted in-principle (Stage-I) forest clearance to the project, moving it a step closer to final approval, even as reports suggested the project's Environmental Impact Assessment (EIA) had not adequately documented the presence of the white-bellied heron in the affected stretch of the river.
The Species
The Project
The Clearance Process
The Assessment Gap
Compensatory Afforestation
Wider Stakes
Political and Constitutional Dimensions The episode sits at the intersection of India's cooperative federalism and its environmental governance architecture. Forest and wildlife are subjects on the Concurrent List, meaning both the Arunachal Pradesh government, which is keen to unlock hydropower revenue, and the central Ministry of Environment, Forest and Climate Change, which administers the Forest (Conservation) Act, 1980 through the FAC, have a stake in the outcome. Article 48A of the Constitution directs the state to protect and improve the environment and safeguard forests and wildlife, while Article 51A(g) casts this as a fundamental duty of every citizen — both frequently invoked in judicial review of clearance decisions like this one.
Economic and Financial Dimensions Hydropower projects such as the 1,200 MW Lohit scheme represent significant capital investment by THDC India Ltd and are pitched as a source of clean energy and revenue for a state with a limited industrial base. Delays or rejections at the clearance stage carry real financial costs for the developer, which strengthens the incentive to secure approvals quickly, sometimes at the expense of thorough baseline biodiversity surveys. At the same time, compensatory afforestation itself has a cost, and spending it on distant patches in Madhya Pradesh — rather than habitat restoration nearer the Lohit basin — may represent a poor ecological return on that expenditure.
Social Dimensions Large hydropower projects in the Eastern Himalaya typically affect local and indigenous communities who depend on the river system for livelihoods, water, and cultural practices. Loss of forest cover and altered river flow can disrupt these dependencies even where formal displacement is limited, making meaningful public consultation and transparent disclosure of a project's ecological footprint — including its impact on species like the white-bellied heron — essential to maintaining public trust in the clearance process.
Governance and Administrative Dimensions The core governance question raised by this case is whether the EIA and forest clearance process has adequate safeguards to ensure rare and Schedule I species are identified and assessed before, not after, a project is cleared. An EIA that omits a Critically Endangered species with such a concentrated population in the project area points to gaps in survey rigour, external expert review, and cross-checking against existing conservation data before the FAC deliberates. Strengthening species-specific baseline surveys and independent verification would improve the credibility of future clearances.
International Perspective The white-bellied heron's tiny global range spans India, Bhutan, and historically Myanmar and Bangladesh, and its IUCN Critically Endangered listing reflects an international scientific consensus on its precarious status. Because the species' survival depends on coordinated conservation across these range countries, developments that degrade its habitat within India also carry implications for regional conservation efforts, including those undertaken by Bhutan, which has invested in dedicated white-bellied heron conservation programmes. India's clearance decisions in such transboundary-species habitats are watched as a signal of its commitment to global biodiversity conservation goals.
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Which of the following ocean currents is associated with Indian Ocean?
Answer: C. Agulhas current
Without green house effect, the average temperature of earth surface would be
Answer: B. –18°C
1. In Ease of Doing Business Report 2020, India's rank is 63. 2. India ranking for Ease of Doing Business in the year 2019 was 77.
With reference to the World Bank's Ease of Doing Business Report, which of the following statement(s) is/are correct?
Answer: B. 2 only
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