{GS1 – Geo} Role of Oceans in Land Heatwaves
- Context (DTE): A recent study has found that warming oceans contribute to 50–64% of global land heatwaves, highlighting strong land–ocean climate linkages.
- Rising temperatures in the Indian Ocean trigger widespread heatwaves in South Asia and West Asia.
- Sea surface temperature rise can act as an early warning signal for predicting extreme heat events.
How Oceans Affect Heatwaves?
- Moisture from Oceans: Warmer oceans release more water vapour, increasing atmospheric humidity and intensifying heatwaves.
- Heat & Humidity: High humidity reduces evaporative cooling (sweating), making heatwaves more severe and dangerous.
- Land–Ocean Interaction: Oceans transfer heat and moisture to land through winds and atmospheric circulation, spreading heatwaves.
- Atmospheric Wave Patterns: Ocean warming influences large-scale atmospheric patterns, causing simultaneous heatwaves across distant regions.
- Clustering of Heatwaves: Leads to frequent and prolonged heat events across multiple regions.
Trends of Heatwaves in India
- Rising Duration: Average heatwave duration increased by ~6.5 days (1961–2021).
- Extreme Events: The maximum duration of heatwaves has risen by ~2 days, indicating prolonged heat.
- Heat Stress: Current definitions ignore humidity, meaning many Indians face dangerous heat (high wet-bulb temperatures) without official classification.
Heatwaves
- Heatwaves are prolonged periods of abnormally high temperatures, often exceeding regional thresholds set by the India Meteorological Department (IMD).
- Criterion for Declaring Heat Wave:
- Temperature Threshold: Heatwave is declared when temperature reaches ≥ 40°C in plains, ≥ 30°C in hills, ≥ 37°C in coastal areas.
- Departure from Normal: Heatwave when temperature is +4.5°C to +6.4°C above normal & Severe heatwave if > 6.4°C above normal.
- Absolute Temperature Criteria: Heatwave if temperature ≥ 45°C & Severe heatwave if ≥ 47°C.
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Read More> Heatwaves
{GS2 – Polity} Scheduled Caste Status After Religious Conversion **
- Context (TH): Supreme Court of India reaffirmed that only individuals professing Hinduism, Sikhism, or Buddhism are eligible for Scheduled Caste (SC) status.
- Conversion Effect: Any conversion to another religion results in immediate and complete loss of SC status, regardless of birth.
- PoA Bar: Such converts cannot claim protection under the Scheduled Castes and Scheduled Tribes (Prevention of Atrocities) Act, 1989.
- Legal Basis: The court relied on Clause 3 of the Constitution (Scheduled Castes) Order, 1950, describing the religion-based restriction as “categorical and absolute.”
- Religion Neutral: Unlike the Scheduled Castes, the Constitution (Scheduled Tribes) Order, 1950, imposes no religion-based bar on ST status.
- Retention Condition: ST status depends on continued adherence to tribal customs and community acceptance, not religious affiliation.
- Clause 3: The Constitution (SC) Order, 1950 mandates that ‘no person who professes a religion different from Hinduism, Sikhism, or Buddhism shall be deemed to be a member of a Scheduled Caste.’
- ‘Profess’: The term “profess” under Clause 3 implies publicly declaring and actively practising the customs and rituals of one’s religion.
- Converted Dalits: Dalits who have converted to Islam or Christianity are generally categorised under Other Backward Classes (OBC) or state-specific Backward Class (BC) lists.
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Doctrine of Eclipse
- Core Principle: Upon conversion, an individual’s SC status is not extinguished but “eclipsed,” suspended by the new religious identity.
- Revival: If that person reconverts to Hinduism, Sikhism, or Buddhism, the eclipse is lifted, and the original SC status revives.
- Conditions: Revival requires three strict evidentiary conditions: proof of original caste, genuine re-conversion, and satisfactory evidence of community re-acceptance.
- No Retrospective: While SC status is reinstated upon re-conversion, benefits cannot be claimed for the period of conversion.
Constitution (Scheduled Castes) Order, 1950
- It is a Presidential Order issued under Article 341(1), identifying castes, races, or tribes deemed Scheduled Castes (SC).
- Scope: Initially restricted to Hinduism, the Order was amended in 1956 and 1990 to include individuals professing Sikhism and Buddhism, respectively.
- State-Specific: The SC list is not a single national list, but State and UT-specific; a caste recognised as SC in one state may not be so in another.
- Notification: The President has the initial power to notify the SC list after consulting the Governor of the concerned state.
- Amendment: Once notified, only Parliament can include or exclude any caste from the SC list.
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Read More > Religion-based Reservation in India
{GS2 – Polity} Need for Plea Bargaining in India
- Context (IE): India’s large judicial backlog and delays have led to calls for a national mission to promote plea bargaining and faster dispute resolution.
Problem of Judicial Delays in India
- Massive Backlog: Over 5 crore cases pending, with more than 80% in district courts.
- Delayed Justice: Leads to prolonged trials, undertrial detention, and victim hardship.
- Economic Impact: Weakens contract enforcement, raises business costs, & affects investor confidence.
- Erosion of Trust: Slow justice system creates a crisis of credibility and public confidence in judiciary.
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What is Plea Bargaining?
- Plea bargaining is a legal process where the accused pleads guilty in exchange for reduced charges or lighter punishment.
- Origin: In the USA in the 19th century, it became a dominant feature of the US criminal justice system.
- Purpose: Aims to ensure speedy disposal of cases and reduce judicial backlog.
- Mutual Agreement: Involves negotiation between the accused, prosecution, and sometimes the victim.
- Global Practices: Countries like the USA, UK, Canada, and Australia widely use plea bargaining. In the USA, over 90% of criminal cases are settled through plea deals.

Source: Indian Express
Plea Bargaining in India
- Legal Basis: Introduced via CrPC Amendment 2005; now under Sections 289–300 of BNSS 2023.
- Applicability: Only for offences punishable up to 7 years; not available for offences against women, children, and socio-economic crimes.
- Objective: Aims to reduce judicial backlog and ensure speedy justice through negotiated settlements.
- Low Adoption: Used in less than 1% of cases, due to lack of awareness and institutional hesitation.
- Mutual & Voluntary: Requires consent of the accused and the prosecution; ensures it is voluntary.
- Judicial Oversight: Courts supervise the process to ensure fairness, transparency, and legality.
Way Forward
- Capacity Building: Train prosecutors and legal professionals to negotiate fair and efficient plea deals.
- Incentives for Lawyers: Align incentives to encourage lawyers to settle cases through negotiation.
- Support for Early Settlement: Courts should promote pre-trial settlements and identify suitable cases for plea bargaining.
- Public Awareness: Educate litigants that plea bargaining is a practical, fair, and efficient option, not a sign of defeat.
{GS2 – Governance} Permanent Commission for Women in the Armed Forces **
- Context (ET | DTE): Supreme Court has directed the armed forces to grant Permanent Commission to eligible women officers and ordered full pension and consequential benefits.
- The Court invoked Article 142 to ensure complete justice, applying this as a one-off measure.
- Deemed Service: Women SSC officers will be treated as having completed 20 years of service for pension.
- Pensionary Benefits: Entitled to pension based on 20 years of service, effective from November 1, 2025.
- No Reinstatement: Court denied reinstatement & notional promotions, citing operational effectiveness.
- Article 142 empowers the Supreme Court to pass orders to ensure complete justice in any case.
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Key Findings of the Court
- Systemic Discrimination: Denial of PC was rooted in institutional bias against women officers.
- Biased Evaluation: Performance reports were casually graded, with assumptions of no career progression, affecting merit.
- Lack of Transparency: Evaluation criteria were not clearly disclosed, undermining fairness in selection.
- Violation of Equality: The process compromised equal opportunity and fair competition, contrary to constitutional values.
Short Service Commission (SSC) vs Permanent Commission (PC)
- SSC is short-term (10–14 years), while PC offers service till retirement.
- SSC has limited career growth, whereas PC ensures full promotions and leadership roles.
- SSC lacks an assured pension, while PC provides a pension and long-term benefits.
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Evolution of Permanent Commission for Women in the Army
- 1992: Women were first allowed in the Army; only in select cadres via Short Service Commission (SSC); tenure limited to 10+4 years.
- Pre-2020: Women ineligible for Permanent Commission (till retirement); restricted to SSC tenures only.
- Babita Puniya Case (2020): SC ordered PC for women officers, eligibility for command posts.
Read More > Women in Defence Forces
{GS3 – IE} RBI Releases Draft Framework for Digital Fraud Protection **
- Context (DDN | MC): Reserve Bank of India (RBI) issued a revised draft framework on unauthorised digital banking transactions to strengthen customer protection against digital fraud.
- The guidelines will apply to commercial banks but exclude Small Finance Banks, Payments Banks, Regional Rural Banks, and Local Area Banks.
Digital Fraud Landscape in India
- Key Trend: Fraud cases dropped 34% in FY25, but the total fraud value tripled.
- Volume: ~24 lakh digital frauds occurred in the first 10 months of FY25, surpassing FY23’s total losses.
- Card & Internet Fraud: Made up 66.8% of cases in FY25, but account for 7.2% of total fraud value.
- Mule Accounts: One partner bank discovered that 90% of mule accounts went unnoticed.
- Sectoral Share: Private banks reported 59.3% of fraud cases, while Public Sector Banks accounted for 70.7% of the total fraud amount.
Key Proposals of the Draft Framework
- Definition Expanded: “unauthorised transactions” now include trickery or coercion, offering protection for vulnerable or digitally illiterate customers.
- Compensation: The framework offers compensation for small-value digital frauds (up to ₹50,000), covering 85% of the net loss or ₹25,000, whichever is lower.
- Zero Liability: Customers do not incur any loss if fraud occurs due to bank negligence or third-party security breaches.
- Burden of Proof: Banks need to prove customer negligence in disputed transactions, shifting evidentiary responsibility away from the fraud victim.
- Authentication: Banks should use risk-based security filters like biometrics for high-risk transactions and enable easy low-risk payments.
Other Digital Fraud Prevention Measures by RBI
- Institutional System: Established the Indian Digital Payment Intelligence Corporation (IDPIC) in 2025 under the Companies Act, 2013, for real-time AI fraud monitoring.
- AI Surveillance: Deployed MuleHunter.AI across banks to identify and freeze mule accounts laundering cyber-fraud proceeds.
- Literacy Expansion: Scaled up the Centre for Financial Literacy (CFL) project to expand community-based financial education.
- Awareness Campaigns: Launched ‘RBI Kehta Hai’ to promote safe digital banking.
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Read More > RBI Proposes Compensation for Digital Fraud Victims
{GS3 – Envi} Environmental Corporate Social Responsibility (CSR) in India
- Context (TH): Supreme Court of India ruled that corporations have a fundamental duty to protect the environment under Article 51A(g) of the Constitution.
- CSR Scope: The Court held that corporate social responsibility (CSR) must inherently include environmental responsibility.
- CSR is a statutory corporate obligation under Section 135 of the Companies Act, 2013, requiring eligible Indian and foreign companies operating in India to spend at least 2% of their average net profits from the previous three financial years on approved social development activities.
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Why Environmental CSR Is Necessary?
- Constitutional Duty: Under Article 51A(g), corporations as legal persons have a fundamental duty to protect and improve the natural environment.
- Fiduciary Duty: Section 166(2) of the Companies Act requires that directors prioritise the interests of the environment and community alongside those of shareholders and employees.
- Polluter Pays: Companies damaging fragile ecosystems are legally liable to internalise costs by funding habitat restoration and climate mitigation.
- Greenwashing Check: Mandatory reporting frameworks like Business Responsibility and Sustainability Reporting (BRSR) ensure that corporate claims are backed by measurable outcomes.
- Circular Innovation: A CSR mandate can drive firms to adopt circular economy models that transform industrial waste into sustainable secondary resources.
Challenges with Environmental CSR
- Operational Exclusion: Current rules prohibit CSR spending on activities that directly benefit a company’s own business, limiting investments in circular economy and green supply chains.
- Temporal Mismatch: CSR regulations follow a rigid financial cycle of up to four years, which conflicts with the 10-15-year gestation periods required for ecological restoration.
- Measurement Gap: Quantifying intangible environmental outcomes remains difficult due to a lack of standardised metrics and monitoring frameworks.
- Spending Disparity: Over 60% of CSR funds are concentrated in a few industrialised states, leaving ecologically fragile regions (like the Northeast and tribal belts) severely underfunded.
- Regulatory Complexity: Overlapping environmental laws, land acquisition rules, and approvals from state forest departments can stall meaningful environmental interventions for years.
Govt. Initiatives Complementing Environmental CSR
- Incentivised Restoration: Under the Green Credit Programme (GCP), companies earn tradable credits for verified environmental actions such as reforestation and water conservation.
- Audited Transparency: The BRSR Core framework mandates that top-listed companies provide reasonable assurance on key ESG metrics
- Lifecycle Responsibility: Mandatory Extended Producer Responsibility (EPR) rules shift the financial burden of recycling plastics and e-waste from the state to manufacturers.
- Emissions Trading: Carbon Credit Trading Scheme (CCTS) creates a domestic market for trading emission certificates to achieve Net Zero targets.
- Statutory Afforestation: Under Compensatory Afforestation Fund (CAMPA), industries diverting forest land are legally required to fund restoration at alternative locations.
- Energy Optimisation: The PAT Scheme (Perform, Achieve and Trade) incentivises energy-intensive sectors to reduce consumption through tradable efficiency certificates.
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Read More> Corporate Social Responsibility: Evolution, Benefits & Challenges
{GS3 – Envi} WMO Released State of the Global Climate 2025 **
- Context (DTE): World Meteorological Organisation (WMO) released its State of the Global Climate 2025, highlighting accelerating global warming trends.
- WMO is a specialised UN agency established in 1950 and based in Geneva. State of the Global Climate 2025 is its annual flagship climate assessment.
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Key Findings of the Report
- Global Temperature: 2015–2025 is the hottest 11-year period on record; 2025 ranks among the top three warmest years, with ~1.43°C above the pre-industrial baseline.
- Energy Imbalance: The report for the first time includes Earth’s Energy Imbalance (EEI) as a key indicator, signalling rapid heat accumulation.
- EEI represents the difference between incoming solar energy and outgoing radiation from Earth.
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- Ocean Heat Content: Reached a new record in 2025, with around 90% of the ocean surface experiencing marine heatwaves.
- Glacier Melt & Sea Level: Arctic sea ice stayed near record lows, while the overall rate of global sea-level rise doubled compared to 1993–2002.
- Irreversible Changes: Ocean warming and acidification are now permanent over centennial to millennial timescales due to the accumulation of heat and GHGs.
- Health Impacts: Climate change is accelerating disease spread with dengue at record levels; heat stress affects over one-third of the global workforce.
{Prelims – IR} GlobE Network *
- Context (NOA): India hosted the 12th Steering Committee Meeting of the Global Operational Network (GlobE Network) in New Delhi.
- Enforcement Directorate (ED) and Central Bureau of Investigation (CBI) hosted the meeting jointly.
- Participation: It brought together representatives from 15 member nations of the Steering Committee.
- Key Focus: Strengthening informal cooperation tools to accelerate transnational corruption investigations beyond slower formal legal assistance channels.
About GlobE Network
- The Network originated from the Riyadh Initiative during Saudi Arabia’s G20 Presidency (2020) and was formally launched in 2021.
- Objective: Facilitate swift international cooperation among law enforcement agencies to combat transnational corruption and recover illicit assets.
- Legal Basis: It operates under the United Nations Convention Against Corruption (UNCAC) mandate.
- Secretariat: The United Nations Office on Drugs and Crime (UNODC) serves as its permanent secretariat in Vienna.
- Membership: The Network currently comprises 250 specialised authorities from 135 countries.
- India’s Role: India joined the GlobE Network in 2022 & was elected to its Steering Committee in 2024.
{Prelims – Envi} World Air Quality Report 2025 *
- Context (DDN | IT | TH): Swiss company IQAir published the World Air Quality Report 2025, highlighting a deteriorating global air quality.
Key Findings of the Report
- WHO Compliance: Only 14% of cities met the WHO’s PM2.5 annual guideline (5 µg/m³) in 2025, down from 17% in 2024.
- Leading Polluter: Pakistan is the most polluted country, with PM2.5 levels over 13 times WHO limit.
- Worst City: Loni, Uttar Pradesh, is the world’s most polluted city, with PM2.5 levels about 22 times higher than WHO guidelines.
- Regional Dominance: Twenty-five of the most polluted cities are in India, Pakistan, and China; Central and South Asia remain the most polluted region.
- India’s Stand: India ranked as the 6th most polluted country in 2025, improving from 5th in 2024.
- New Delhi remained the world’s most polluted capital for the 8th consecutive time.
Read More > Air Quality Monitoring
{Prelims – Eco} Districts as Export Hubs Initiative *
- Context (PIB): The government has expanded the Districts as Export Hubs (DEH) initiative to strengthen district-level export capacity.
- Launch: In 2019, as part of the Foreign Trade Policy (FTP).
- Nodal Agency: Directorate General of Foreign Trade (DGFT) under Ministry of Commerce & Industry.
- Objective: Promote district-led export growth by identifying and developing products/services with export potential.
- Institutional Mechanism: Creation of State Export Promotion Committees (SEPCs) and District Export Promotion Committees (DEPCs) in all States/UTs.
- District Export Action Plans (DEAPs): Prepared for 590 districts (249 notified) to guide export strategies at the district level.
- Product: Focus on local products, GI goods, agriculture, and handicrafts for export promotion.
{Prelims – Infra} Raajmarg Infra Investment Trust (RIIT)
- Context (PIB): Raajmarg Infra Investment Trust (RIIT) was officially listed on the Bombay Stock Exchange (BSE) and the National Stock Exchange (NSE).
- RIIT is an Infrastructure Investment Trust (InvIT) sponsored by the National Highways Authority of India (NHAI), under the Ministry of Road Transport and Highways (MoRTH).
- It is NHAI’s first InvIT to directly allow everyday retail citizens to invest in highway infrastructure equity.
- Objective: Monetise operational highway assets and offer retail investors stable toll-based cash flows.
- Asset Portfolio: The trust initially holds five toll roads across Jharkhand, Andhra Pradesh, Tamil Nadu, and Karnataka.
- Context (TH | HIU): Recent scientific studies have introduced a novel halometallurgical method using common alkali salts for Lithium-ion battery (LIB) recycling.
- Halometallurgy employs halogens (mainly chlorine) or halogen salts to recover critical metals like lithium from used lithium-ion batteries.
- Mechanism: Battery waste is heated with chloride salts to convert lithium into a water-soluble form, leaving other metals as an insoluble fraction; it is then separated by water leaching.
- Key Advantage: This process operates at lower temperatures than conventional methods, reducing energy use and enhancing selective recovery.
- Halogens are five highly reactive non-metals—fluorine, chlorine, bromine, iodine, and astatine—that form salts with metals.
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- Significance: It offers a scalable, cost-effective way to recover critical minerals, enhancing India’s circular economy and lowering dependency on lithium and cobalt imports.
Read More > Lithium-ion (Li-ion) Battery
{Prelims – S&T} New Superconductivity Breakthrough
- Context (TH): Scientists have developed a new technique that breaks a 33-year-old record for superconductivity temperature at normal pressure.
- Superconductivity was achieved at –122°C, breaking a 33-year-old record at normal pressure.
- New Technique: Pressure Quenching (PQP) used to retain high-pressure superconducting properties at normal pressure.
- Material Used: Copper oxide Hg1223, a known superconductor, was modified to improve performance.
- Significance: It could enable lossless power transmission, efficient motors, and advanced technologies.
- Limitation: Still requires very low temperatures, not yet near room temperature.
- Future Potential: Opens pathways to stabilise superconductivity under normal conditions.
- Superconductivity is a phenomenon where a material conducts electricity with zero electrical resistance.
- Enables lossless energy transmission; makes it useful for technologies like power grids & MRI machines.
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{Prelims – S&T – Space} Study of Moon’s Titanium-Rich Rocks Offers Insights for Chandrayaan-4 *
- Context (TH): A recent study by Indian researchers offers insights into the Moon’s titanium-rich rocks.
- These findings can assist ISRO in selecting high-value landing sites for Chandrayaan-4 and in analysing returned lunar samples.
Key Findings of the Study
- Origins: Lunar rocks rich in titanium (Ti) formed 4.3–4.4 billion years ago as dense ilmenite-bearing cumulates sank into the Moon’s interior.
- Ilmenite is a black, weakly magnetic iron–titanium oxide; it is Earth’s main source of Ti and a vital component of lunar basalt.
- Process: These cumulates re-erupted as Ti-rich basalts through Mantle Overturn, where sinking dense, titanium-rich minerals caused lighter rocks to ascend.
- Temperature Dynamics: Higher temperatures produced intermediate-Ti melts, while cooler conditions generated extremely high-Ti, low-magnesium magmas.
About Chandrayaan-4
- It is India’s first lunar sample-return mission aimed at collecting and bringing back 3 kg of lunar materials to Earth.
- The mission is planned for 2027–2028; if successful, India will be the fourth country to return lunar samples after the USA, USSR, and China.
- Landing Site: ISRO has chosen Mons Mouton near the Moon’s South Pole as a primary site due to the presence of water ice and ancient rocks.
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Read More > Site in Mons Mouton Selected for Chandrayaan-4 Landing