rchives


(PRELIMS  Focus)


Depreciation of Rupees

Category: ECONOMICS

Context:  The rupee recorded its biggest single-day fall in nearly 3 months, depreciating by 61 paise to close at ₹87.42 per USD.

Learning Corner:

Currency Appreciation & Depreciation:

Link with Inflation:

Broader Impact on Indian Economy:

Aspect Depreciation of Rupee Appreciation of Rupee
Exports Boosts competitiveness (positive) Hurts competitiveness (negative)
Imports Becomes costlier (negative) Becomes cheaper (positive)
Inflation Increases (especially WPI, CPI) May reduce inflation
Current Account Deficit (CAD) May worsen May improve (if exports stay stable)
Foreign Investment Can deter if seen as unstable Can attract stable flows

RBI Intervention via the Forex Market:

Objective: To stabilize the exchange rate of the rupee.

When the Rupee Depreciates Sharply:

When the Rupee Appreciates Excessively:

Tool Used: Spot and forward transactions, swaps, open market operations in forex.

RBI Intervention via Monetary Policy:

Objective: To control domestic inflation and manage capital flows.

When Inflation Rises (Often Due to Depreciation):

When Growth Slows and Inflation is Low:

Tool Used: Repo rate, CRR, SLR, Open Market Operations (OMOs)

 

RBI Tool Purpose Impact on Rupee Impact on Inflation
Selling USD Curb rupee fall Strengthens rupee Controls imported inflation
Buying USD Curb excess rise Weakens rupee Boosts exports
Raising Repo Rate Tame inflation Attracts FPI, strengthens rupee Controls inflation
Cutting Repo Rate Boost growth May weaken rupee Mild inflation rise possible

Source: THE INDIAN EXPRESS


Mangroves

Category: ENVIRONMENT

Context: Restoring Mangroves Can Turn the Tide on India’s Coastal Security

Why Mangroves Matter:

Major Threats to Mangroves:

Learning Corner:

Mangroves

Unique Features of Mangroves

  1. Salt Tolerance (Halophytic Nature)
    • Survive in saline conditions through salt-excreting leaves and special root adaptations.
  2. Special Root Systems
    • Have stilt roots, pneumatophores (breathing roots), and prop roots for oxygen absorption and anchorage in soft, waterlogged soils.
  3. Tidal Adaptability
    • Thrive in highly dynamic tidal zones, tolerating both flooding and exposure to air.
  4. High Carbon Sequestration
    • Store large amounts of “blue carbon” in both biomass and deep, anoxic soils  crucial for climate change mitigation.
  5. Nursery Grounds
    • Serve as breeding and nursery habitats for fish, crabs, shrimps, and molluscs — vital for coastal livelihoods.
  6. Natural Coastal Barriers
    • Protect shorelines from cyclones, tsunamis, storm surges, and coastal erosion.
  7. Species Diversity
    • India hosts over 40 mangrove species, with Avicennia, Rhizophora, and Sonneratia being common genera.

Ecological and Economic Significance

Mangrove Cover in India by State/UT (Descending Order):

Rank State/UT Mangrove Area (sq km) % of India’s Total Mangrove Cover Key Mangrove Regions
1 West Bengal 2,114 42.3% Sundarbans (World’s largest mangrove delta)
2 Gujarat 1,141 23.6% Gulf of Kutch, Gulf of Khambhat
3 Andaman & Nicobar Islands 617 12.3% North, Middle & South Andaman coastlines
4 Andhra Pradesh 404 8.1% Godavari and Krishna estuaries
5 Maharashtra 304 6.4% Thane Creek, Raigad, Ratnagiri
6 Odisha 251 5.0% Bhitarkanika delta
7 Tamil Nadu 45 1.0% Pichavaram, Muthupet
8 Goa 26 0.5% Mandovi and Zuari river estuaries
9 Kerala 9 0.2% Kannur, Kozhikode estuaries
10 Karnataka 3 0.1% Uttara Kannada coast

Total Mangrove Area in India: 4,975 sq km (approx. 0.15% of total geographical area)

Source:  THE HINDU


Kamchatka Quake

Category: GEOGRAPHY

Context : A massive 8.8 magnitude earthquake struck Russia’s Kamchatka Peninsula, one of the strongest in recent times.

What Happened?

Context & Rarity

Why It Happened – Subduction Zone

Other Vulnerable Zones

Learning Corner:

Earthquakes

Tsunamis

Circum-Pacific Belt (Ring of Fire)

Geographical Features Formed at Convergent Boundaries

At convergent plate boundaries, two tectonic plates move toward each other, leading to intense geological activity. Depending on the type of plates involved (continental or oceanic), different geographical features are formed:

Oceanic–Continental Convergence

Oceanic–Oceanic Convergence

Continental–Continental Convergence

Additional Features

Geographical Features Formed at Divergent Boundaries

Mid-Ocean Ridges

Rift Valleys (on land)

Volcanoes

Shallow Earthquakes

New Ocean Basins

Source:  THE INDIAN EXPRESS


NISAR

Category: SCIENCE AND TECHNOLOGY

Context India and the United States have successfully launched the NASA-ISRO Synthetic Aperture Radar (NISAR) Earth observation satellite on July 30, 2025, from the Satish Dhawan Space Centre in Sriharikota, India

What is NISAR?

What Makes NISAR Special?

Scientific Benefits

ISRO-NASA Collaboration

Technology Highlights

Learning Corner:

Earth Observation Satellites 

India (ISRO)

EOS Series (Earth Observation Satellites)

International Satellites

Landsat 9 (NASA & USGS — Launched Sep 2021)

Sentinel Series (ESA’s Copernicus Program)

Gaofen Series (China)

GOSAT-2 (Greenhouse gases Observing Satellite-2)

KOMPSAT-6 (South Korea) (Launched 2022)

Source: THE INDIAN EXPRESS


New GDP series

Category: ECONOMICS

Context: The Indian government will release a new GDP series on February 27, 2026, using FY 2022–23 as the new base year, replacing the current 2011–12 base

Updates on Other Indicators:

Current Data Release Schedule:

The base year revisions aim to improve the accuracy and relevance of India’s macroeconomic statistics, aiding better policy formulation and analysis.

Learning Corner:

Gross Domestic Product (GDP):

Formula:
GDP at Market Prices = GVA at Basic Prices + Product Taxes – Product Subsidies

Gross Value Added (GVA):

It is calculated at:

Sectoral contributions like agriculture, manufacturing, construction, and services are first measured using GVA.

 

Key Differences:

Aspect GDP GVA
Definition Value of all final goods/services Value added in production
Includes Taxes? Yes (includes taxes minus subsidies) No (measured at basic prices)
Used For? Measuring overall economic performance Measuring sectoral performance
Indicator Type Demand-side measure Supply-side measure

Source: THE HINDU


(MAINS Focus)


ICJ Advisory Opinion on Climate Obligations (GS paper III - Environment)

Introduction (Context)

On July 23, 2024, the International Court of Justice (ICJ) delivered its advisory opinion on the obligations of States to reduce greenhouse gas (GHG) emissions and the legal consequences of failing to do so. 

The case was initiated by Vanuatu, a Pacific island nation with a population of just 3,00,000. In March 2023, it led a coalition of small island states to secure consensual approval from the United Nations General Assembly to ask the ICJ two questions: What are states legally required to do to address climate change, and what are the consequences if they do not fulfil these duties?

The opinion, sought by the United Nations General Assembly (UNGA), reaffirms key principles of international climate law, but also raises interpretational concerns and highlights the development-versus-environment tensions.

Key Takeaways

Reinforced Multilateral Climate Framework:

Reinforcement of Obligations for Developed Countries

Rejection of Annex-Based Dilution

CBDR-RC as the Core Guiding Principle

Acknowledgement of Evolving National Circumstances

Issues/Gaps

Issue in Temperature Goal Interpretation

Nature of Obligations: Conduct vs. Result

The opinion argues that even as obligations of conduct, the requirements on countries to meet their commitments can be sufficiently stringent. However, it depends on suitable courts with the requisite jurisdiction to enforce them and is contingent on the circumstances of every individual case.

Neglect of Global South’s Development Challenges

Public policy challenges for India due to ICJ verdict

1. Legal Preparedness

2.Weak Enforcement of Environmental Laws

3. Fossil Fuel Subsidies

Conclusion

The milestone ICJ opinion is not just a verdict from afar, but a compass. It signals the end of voluntary climate ambition and invites all countries to chart a harder, but fairer course. For India, the challenge now is to align duty with dignity and ambition with justice.

Mains Practice Question

Q Critically analyse the ICJ’s advisory opinion on climate obligations in the context of equity and the principle of Common But Differentiated Responsibilities and Respective Capabilities (CBDR-RC).  (250 words, 15 marks)

Source: https://www.thehindu.com/sci-tech/energy-and-environment/what-did-the-icj-opinion-say-on-climate-obligations-explained/article69869053.ece#:~:text=The%20ICJ’s%20opinion%20has%20several,Protocol%20and%20the%20Paris%20Agreement.


Legal Aid in India (GS paper II - Polity and Governance)

Introduction (Context)

The India Justice Report 2025 revealed that despite a legal mandate, only 15.5 lakh people received legal aid between April 2023 and March 2024—far below the scale envisioned. This highlights a growing concern about the capacity, budget, and outreach of India’s legal aid system.

What is Legal aid

    1. Representation by an Advocate in legal proceedings.
    2. Payment of process fees, expenses of witnesses and all other charges payable or incurred in connection with any legal proceedings in appropriate cases;
    3. Preparation of pleadings, memo of appeal, paper book including printing and translation of documents in legal proceedings;
    4. Drafting of legal documents, special leave petition etc.
    5. Supply of certified copies of judgments, orders, notes of evidence and other documents in legal proceedings.

Constitutional & Legal Provisions

Benefits of Free Legal Aid in India

What is NALSA?

Key Highlights from India Justice Report 2025

Poor Reach: 

Legal aid clinics: 

Budgetary gaps: 

Para-Legal volunteers

Obstacles to Legal Assistance in India

Steps needed

Conclusion

While states are working towards enhancing funding for legal aid, persistent challenges like uneven service quality, weak accountability, and limited public confidence continue to hinder its impact. Many of these problems can be addressed by increasing financial and human resources. Strengthening the capacity of legal aid mechanisms is crucial to ensure their effectiveness. Without adequate support, the system cannot deliver the standard of justice promised by the Constitution.

Mains Practice Question

Q Access to legal aid is essential for ensuring justice for the marginalised in India. Critically examine. (250 words, 15 marks)

Source: https://www.thehindu.com/opinion/op-ed/boost-the-capacity-of-legal-aid-systems/article69874191.ece

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