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  • Urban Transformation – Smart Cities, AMRUT, etc.

    [3rd January 2026] The Hindu OpED: Transforming a waste-ridden urban India

    op-ed snap | Indian Society | Mains Paper 1: Population & Associated Issues

    PYQ Relevance

    [UPSC 2018] What are the impediments in disposing of the huge quantities of discarded solid wastes which are continuously being generated? How do we remove safely the toxic wastes that have been accumulating in our habitable environment?

    Linkage: The question aligns with India’s urban solid waste crisis, where poor segregation, limited municipal capacity, and weak recycling systems hinder safe disposal. The article’s focus on circular economy, waste-to-energy, and regulated toxic waste management directly addresses environmental pollution mitigation.

    Mentor’s comment

    Urban India is facing a structural waste management crisis that threatens environmental sustainability, public health, and economic efficiency. At COP30 UNFCCC, global consensus reinforced the circular economy as a growth pathway, placing Indian cities at the center of climate, resource, and governance reforms. This article examines the scale of India’s urban waste challenge, structural bottlenecks, and the urgent need to transition from linear waste disposal to circular urban management.

    Introduction

    India’s urbanisation has been rapid but uneven, producing clean enclaves alongside waste-ridden cities. Despite flagship programmes such as Swachh Bharat Mission (SBM), urban waste management remains fragmented and inefficient. With waste volumes rising sharply and cities becoming hotspots of pollution and emissions, India must urgently adopt circular economy principles that minimise waste, recover resources, and integrate governance across sectors.

    Why in the News?

    At COP30 UNFCCC (Belém, November 2025), global leaders committed to a No Organic Waste, Now initiative and emphasised circularity as the pathway to inclusive growth and climate mitigation. Indian cities were explicitly urged to accelerate circular waste management. This marks a shift from traditional waste disposal approaches towards resource recovery, aligning climate commitments with urban governance reforms.

    Urban India and the Scale of the Waste Crisis

    Why is urban waste a growing structural challenge?

    1. Rapid urbanisation: Expanding cities generate waste volumes beyond municipal handling capacity.
    2. Environmental impact: Indian cities underperform global standards in clean air, water, and sanitation.
    3. Emission burden: Cities projected to generate 165 million tonnes of waste annually by 2030, emitting 41 million tonnes of greenhouse gases.
    4. Future risk: Waste burden projected to rise to 436 million tonnes by 2050 with urban population growth.
    5. Economic and health costs: Unmanaged waste contributes to disease, pollution, and productivity loss.

    From Linear Disposal to Circular Management

    Why must India move away from linear waste systems?

    1. Linear model limitation: Disposal-focused systems treat waste as an endpoint.
    2. Circular opportunity: Treats waste as a resource for energy, materials, and inputs.
    3. Policy objective: Minimising waste generation while maximising recovery of energy and materials.
    4. Feasibility: SBM Urban 2.0 aims for Garbage-Free Cities (GFC) by 2026, making circularity operational rather than aspirational.

    Plastic, Organic, and Construction Waste: Sectoral Realities

    How significant is organic waste in municipal streams?

    1. Waste composition: Over 50% of municipal waste is organic.
    2. Processing options: Composting and bio-methanation from household to large-scale plants.
    3. Energy recovery: Compressed Biogas (CBG) plants generate fuel and power.
    4. Efficiency gains: Complete combustion can yield energy equal to one-third of waste volume.

    Why is plastic waste the most difficult category?

    1. Environmental risk: Plastic poses long-term ecosystem and human health hazards.
    2. Segregation dependency: Recycling efficiency depends on source-level segregation.
    3. Infrastructure gap: Material Recovery Facilities require continuous upgrading.
    4. Market constraint: Plastic-derived fuels and cement inputs lack mature market linkages.

    Why is construction and demolition (C&D) waste a major blind spot?

    1. Volume: Generates ~12 million tonnes annually, concentrated in major cities.
    2. Cause: Unplanned construction in fast-growing urban centres.
    3. Disposal practice: Frequent roadside and vacant land dumping.
    4. Recycling gap: Existing capacity insufficient relative to waste generation.
    5. Resource loss: Reusable materials remain unsegregated and unprocessed.

    Water, Sanitation, and Circularity Linkages

    How does waste management affect urban water security?

    1. Causal linkage: Water security depends on treated wastewater and faecal sludge management.
    2. Policy integration: AMRUT and SBM focus on wastewater treatment and reuse.
    3. Resource constraint: India’s water stock insufficient to meet future urban demand.
    4. Circular solution: Recycling and reuse emerge as the only sustainable pathway.

    Governance and Implementation Challenges

    What hinders circular waste implementation in cities?

    1. Segregation gaps: Weak household-level compliance.
    2. Logistics inefficiency: Poor collection, aggregation, and processing chains.
    3. Market constraints: Recycled products face quality and demand limitations.
    4. Testing shortfalls: Inadequate monitoring and certification systems.
    5. Extended Producer Responsibility (EPR): Incomplete integration with construction and building laws.
    6. Institutional fragmentation: Weak inter-departmental coordination.
    7. Municipal capacity: Financial and technical resource shortages.

    Regulatory and Policy Interventions

    What regulatory steps are being strengthened?

    1. C&D Waste Management Rules, 2016: Levy charges on bulk waste generators.
    2. Environment (Construction & Demolition) Waste Rules, 2025: Enforced from April 1, 2026.
    3. State responsibility: Waste management, sanitation, and water under State List.
    4. Reuse mandate: Encourages use of treated wastewater in agriculture, horticulture, and industry.

    Behavioural and Economic Dimensions

    Why citizen participation is critical to circularity?

    1. Behavioural shift: Reuse requires conscious consumption changes.
    2. Profit clarity: Citizens and enterprises need economic incentives.
    3. Hierarchy challenge: Reduce-Reuse-Recycle difficult in consumer-driven markets.
    4. Technology role: Recycling supported by innovation and private enterprise.
    5. Urban transformation: Circularity enables cities to move away from landfill dependence.

    Conclusion

    India’s urban waste crisis is not merely a sanitation issue but a governance, resource, and climate challenge. Circular waste management offers a pathway to reduce emissions, conserve resources, and strengthen urban resilience. Achieving this requires regulatory enforcement, infrastructure investment, market creation for recycled products, and sustained citizen participation. Circularity must transition from policy intent to urban practice.

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  • Climate Change Impact on India and World – International Reports, Key Observations, etc.

    How rice farmers can cut methane and make money off it

    Explained | Agriculture | Mains Paper 3: Conservation, Environmental Pollution & Degradation, Eia,Different Types Of Irrigation & Irrigation Systems

    Introduction

    Rice cultivation traditionally relies on continuous flooding, creating anaerobic soil conditions conducive to methane-producing bacteria. Given that over 86% of Indian farmers are small and marginal, scalable, low-cost mitigation practices are essential. Alternate Wetting and Drying (AWD) comes across as a practical solution that reduces emissions without yield loss, supported by empirical data from Telangana, Andhra Pradesh, Odisha, and Tamil Nadu.

    Why in the News?

    Paddy cultivation contributes 28% of global methane emissions, with methane having 28 times the global warming potential of CO₂ over 100 years. The article highlights a first-of-its-kind, farmer-level implementation in India where Alternate Wetting and Drying (AWD) reduced methane emissions while enabling farmers to earn carbon credits. Unlike earlier mitigation efforts focused only on productivity, this approach integrates climate finance, water conservation, and income generation, marking a structural shift in rice farming practices.

    Why Does Traditional Paddy Cultivation Produce High Methane Emissions?

    1. Continuous Flooding: Maintains 4-5 cm water depth for the first 65 days of the crop cycle.
    2. Anaerobic Conditions: Support methanogenic microbes that decompose organic matter.
    3. Emission Intensity: Methane is 28 times more potent than CO₂ in warming potential.
    4. Global Impact: Paddy cultivation accounts for 28% of global methane emissions.

    What Is Alternate Wetting and Drying (AWD)?

    1. Irrigation Technique: Periodic drying of fields instead of continuous flooding.
    2. Operational Threshold: Irrigation resumes when water level falls to 15 cm below soil surface.
    3. Adoption Window: Implemented after first 20 days of transplantation.
    4. Institutional Support: Promoted by International Rice Research Institute (IRRI).

    How Does AWD Reduce Methane Emissions Without Yield Loss?

    1. Aeration of Soil: Disrupts methane-producing microbial activity.
    2. Water Savings: Reduces irrigation requirement significantly.
    3. Yield Stability: No statistically significant reduction in grain output.
    4. Ancillary Benefits: Lower weed pressure and improved nutrient efficiency.

    What Evidence Supports the Effectiveness of AWD in India?

    1. Field Study: Conducted across 30 sites in Telangana and Andhra Pradesh.
    2. Emission Reduction: Methane emissions reduced by 20-40%.
    3. Water Use: Comparable decline in irrigation water requirement.
    4. Scalability: Validated across varied agro-climatic conditions.

    How Are Farmers Monetising Methane Reduction?

    1. Measurement: Acrylic chambers used to quantify methane emissions.
    2. Verification: Samples analysed in accredited laboratories.
    3. Carbon Credits: 1 carbon credit = 1 tonne CO₂ equivalent.
    4. Earnings: ₹1,300-₹7,000 per farmer per season depending on region.
    5. Aggregation Model: Credits pooled and sold to international buyers.

    What Institutional Models Are Enabling This Transition?

    1. Climate Tech Intermediaries: Facilitate monitoring, reporting, and verification (MRV).
    2. Carbon Markets: Buyers include energy-intensive global corporations.
    3. Corporate Partnerships: Shell Energy India supported AWD adoption.
    4. Scale: Over 12,000 farmers across 13 states integrated.

    Conclusion

    The article demonstrates that methane mitigation in rice farming is technically feasible, economically viable, and scalable. By linking irrigation practices with carbon markets, AWD represents a paradigm shift where climate action strengthens farm incomes rather than constraining them.

    Value Addition

    Scale of Methane Emissions from Agriculture

    1. Global Share: Agriculture contributes ~40% of global anthropogenic methane emissions.
    2. India’s Context: Agriculture is the largest source of methane emissions in India, exceeding energy and waste sectors.
    3. Paddy Cultivation: Responsible for ~28-30% of global agricultural methane emissions.
    4. Livestock: Enteric fermentation from ruminants contributes ~32-35% of agricultural methane.
    5. Climate Impact: Methane has ~28-34 times higher Global Warming Potential (GWP) than CO₂ over 100 years and ~80 times over 20 years.

    Other Proven Models to Cut Methane Emissions in Agriculture

    1. Direct Seeded Rice (DSR)
      1. Mechanism: Eliminates continuous flooding by sowing seeds directly.
      2. Outcome: Reduces methane emissions by 20-50%.
      3. Co-benefits: Lower water use, reduced labour costs.
      4. Limitation: Higher weed management requirement.
    2. System of Rice Intensification (SRI)
      1. Mechanism: Wider plant spacing, intermittent irrigation, younger seedlings.
      2. Outcome: Reduces methane emissions due to improved soil aeration.
      3. Productivity: Often increases yield with lower input intensity.
      4. Constraint: High skill and labour precision required.
    3. Mid-Season Drainage
      1. Mechanism: Temporary drainage during tillering stage.
      2. Outcome: Interrupts anaerobic conditions, suppressing methanogenesis.
      3. Adoption: Practiced in parts of East Asia and Southeast Asia.
      4. Risk: Needs precise timing to avoid yield stress.
    4. Straw and Residue Management
      1. Mechanism: Avoids incorporation of fresh organic matter in flooded fields.
      2. Outcome: Reduces methane formation from anaerobic decomposition.
      3. Best Practice: Composting or biochar conversion of rice straw.
    5. Biochar Application
      1. Mechanism: Alters soil microbial activity and improves aeration.
      2. Outcome: Reduces methane emissions while enhancing soil carbon storage.
      3. Co-benefit: Improves soil fertility and water retention.
    6. Feed Additives in Livestock (Complementary Model)
      1. Examples: Seaweed-based additives, 3-NOP compounds.
      2. Outcome: Reduce enteric methane emissions by 20-80%.
      3. Status: Pilot-stage in India; commercial use expanding globally.
    7. Market-Based Methane Mitigation Instruments
      1. Carbon Credits: 1 credit = 1 tonne CO₂ equivalent avoided.
      2. Aggregation Models: Smallholder emissions pooled for viability.
      3. Buyers: Energy, aviation, cement, and data-centre industries.
      4. Trend: Shift from voluntary offsets to high-integrity, agriculture-based credits.

    PYQ Relevance

    [UPSC 2020] What are the major factors responsible for making the rice-wheat system a success? In spite of this success, how has this system become a bane in India?

    Linkage: The article directly addresses the environmental externalities of flooded paddy cultivation, especially methane emissions and water stress, which constitute the “bane” aspect of the rice-based system. 

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  • Renewable Energy – Wind, Tidal, Geothermal, etc.

    Energy transition will need more than chasing the sun or the wind

    Explained | Economics | Mains Paper 3: Infrastructure: Energy, Ports, Roads, Airports, Railways Etc.

    Introduction

    India’s renewable energy transition has reached a critical inflection point. While solar and wind installations have expanded rapidly, the electricity system was originally designed for centralised, predictable, fossil-based generation. Without parallel reforms in distribution companies, tariff structures, demand-side management, and wholesale power markets, the energy transition risks becoming fiscally unsustainable and operationally inefficient.

    Why in the News?

    India has crossed 180 GW of renewable energy capacity, positioning itself as a global leader in clean energy expansion. Yet, despite rapid capacity addition, there remains a systemic bottleneck: electricity distribution and market design remain unreformed. This marks a sharp contrast with earlier phases where generation capacity was the primary constraint. The problem is large in scale, state-owned DISCOMs remain financially stressed, demand response remains underutilised, and wholesale markets are fragmented, threatening grid stability as renewable penetration rises. A key success noted is the installation of nearly 40 million smart meters, but the failure lies in inadequate institutional and pricing reforms to leverage them effectively.

    Why is renewable capacity expansion no longer sufficient?

    1. Structural mismatch: The electricity grid is optimised for stable baseload power, not intermittent solar and wind generation.
    2. System constraints: Distribution networks and market rules have not evolved to manage variability and decentralised generation.
    3. Outcome: Renewable energy risks curtailment and inefficiency despite surplus capacity.

    Why are DISCOMs the central bottleneck in India’s energy transition?

    1. Financial stress: State-owned DISCOMs face persistent losses due to high fixed costs and inadequate tariff recovery.
    2. Cross-subsidisation: Agricultural and household consumers pay low tariffs, shifting the burden to commercial users.
    3. Distorted incentives: High-paying consumers invest in rooftop solar or efficiency measures, eroding DISCOM revenues further.
    4. Outcome: A feedback loop of declining revenues and rising financial risk.

    How do current tariff structures limit system efficiency?

    1. Flat and time-invariant tariffs: Consumers face no price signals to shift usage away from peak demand.
    2. Limited demand response: Consumers lack incentives to reduce or reschedule consumption during stress periods.
    3. Outcome: Peak demand continues to drive costly capacity additions instead of behavioural adjustment.

    What role do smart meters play, and why is their impact limited?

    1. Infrastructure success: Around 40 million smart meters installed, with rapid scaling underway.
    2. Unrealised potential: Absence of complementary tariff reforms limits their effectiveness.
    3. Operational constraint: Manual coordination persists despite availability of real-time data.
    4. Outcome: Smart meters remain underutilised as instruments of system flexibility.

    Why is demand-side management critical for renewable integration?

    1. Cost-effectiveness: Demand response lowers peak demand at lower cost than building new generation.
    2. System flexibility: Enables balancing of short-duration renewable fluctuations.
    3. Equity challenge: Requires protection for low-income consumers from price volatility.
    4. Outcome: Essential but politically and institutionally underdeveloped.

    What weaknesses exist in India’s wholesale power markets?

    1. Fragmentation: Majority of power procured through long-term contracts.
    2. Limited spot markets: Constrains efficient price discovery.
    3. Regulatory gaps: Centralised dispatch and market coupling remain incomplete.
    4. Outcome: Renewable power cannot flow seamlessly across regions.

    How does captive power generation affect market efficiency?

    1. Rising trend: Industries invest in captive plants to bypass high grid tariffs.
    2. Revenue erosion: Reduces DISCOM demand base.
    3. Market distortion: Limits competition in wholesale markets.
    4. Outcome: Weakens grid integration and increases system costs.

    Conclusion

    India’s clean energy transition has outgrown a generation-centric approach. The editorial underscores that distribution reform, cost-reflective pricing, demand responsiveness, and integrated power markets are no longer optional but foundational. Without these, renewable energy risks becoming economically and operationally fragile rather than transformative.

    PYQ Relevance

    [UPSC 2022] Do you think India will meet 50 percent of its energy needs from renewable energy by 2030? Justify your answer. How will the shift of subsidies from fossil fuels to renewables help achieve the above objective?

    Linkage: This question is directly relevant to GS Paper III (Energy Infrastructure and Sustainable Development) as it assesses India’s ability to translate renewable capacity targets into reliable, affordable, and inclusive energy supply.

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  • Ministry of Statistics and Programme Implementation launches new logo and mascot

    Prelims Only | Governance | Mains Paper 2: Government Scheme/Policies

    Why in the news?

    The Ministry of Statistics and Programme Implementation has unveiled a new logo and a mascot to modernise its institutional identity and strengthen public outreach, as reported by DD News.

    About MoSPI

    MoSPI is the nodal ministry for official statistics in India. It is responsible for data collection, compilation, analysis, and dissemination to support evidence based policymaking and national development.

    Aim of the initiative

    • Promote the theme Data for Development
    • Make official statistics more accessible, relatable, and trustworthy
    • Enhance public participation in surveys
    • Improve transparency and accuracy in India’s statistical system

    Key features

    New logo

    • Ashoka Chakra symbolising truth, transparency, and good governance
    • Rupee symbol highlighting the role of statistics in economic planning and policymaking
    • Numerical elements and growth bar representing modern data systems and data driven progress
    • Colour palette of saffron, white, green, and deep blue signifying growth, sustainability, stability, and knowledge

    Mascot “सांख्यिकी”

    • Citizen centric character to simplify complex statistical concepts
    • To be used in surveys, awareness campaigns, educational initiatives, digital platforms, and public events

    Significance

    • Builds public confidence in official statistics through consistent and recognisable communication
    • Encourages higher survey participation leading to better data quality
    • Reinforces evidence based policymaking
    • Supports India’s shift towards transparent, data led governance

    Prelims pointers

    • MoSPI is the nodal ministry for official statistics in India
    • New logo and mascot aim to improve public engagement with data
    • Mascot “सांख्यिकी” is designed for citizen outreach and statistical awareness
    [2009] Which one of the following brings out the publication called “Energy Statistics” from time to time? 

    (a) Central Power Research Institute 

    (b) Planning Commission 

    (c) Power Finance Corporation Ltd. 

    (d) Central Statistical Organization

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  • Foreign Policy Watch: India – EU

    Bulgaria joins the eurozone

    Prelims Only | International Relations | Mains Paper 2: Bilateral, Regional and Global Groupings and agreements involving India

    Why in the news?

    Bulgaria officially adopted the euro as its national currency on January 1, 2026, replacing the Bulgarian lev and becoming the 21st member of the eurozone.

    About Bulgaria

    What it is

    Bulgaria is a Balkan country in southeastern Europe. It has been a member of the European Union since 2007 and NATO since 2004. The adoption of the euro followed the fulfilment of European Union convergence criteria.

    Location

    • Eastern Balkan Peninsula
    • Strategic link between Europe, the Black Sea region, and West Asia

    Borders

    • Romania in the north
    • Serbia and North Macedonia in the west
    • Greece and Turkey in the south
    • Black Sea in the east

    Geographical features

    • Danubian Plain in the north, an important agricultural belt
    • Balkan Mountains extending east west
    • Rila Rhodope Massif in the south with Mount Musala, the highest peak in the Balkans
    • Black Sea coastline supporting ports, tourism, and trade

    About the eurozone

    What it is

    The eurozone is the group of European Union countries that use the euro as their official legal tender and follow a common monetary policy.

    Evolution

    • 1992 Maastricht Treaty established the Economic and Monetary Union
    • 1999 Euro introduced for electronic transactions
    • 2002 Euro notes and coins entered circulation

    Members

    • 21 European Union countries as of 2026, including Bulgaria

    Key features

    • Single currency system
    • Unified monetary policy by the European Central Bank
    • No internal currency exchange costs
    • Free movement of goods, services, capital, and labour

    Prelims pointers

    • Bulgaria joined the eurozone in 2026
    • Eurozone membership is different from EU membership
    • ECB governs monetary policy of eurozone states
    [2025] Consider the following countries: 

    I. Austria 

    II. Bulgaria

    III. Croatia

    IV. Serbia

    V. Sweden

    VI. North Macedonia

    How many of the above are members of the North Atlantic Treaty Organization? 

    (a) Only three (b) Only four (c) Only five (d) All the six

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  • Goods and Services Tax (GST)

    Central Excise Amendment on tobacco products

    Prelims Only | Economics | Mains Paper 3: Effects Of Liberalization On The Economy, Changes In Industrial Policy and their effects on Industrial Growth

    Why in the news?

    The Centre has notified the Central Excise Amendment Act 2025 along with related tax changes on tobacco products. The changes will come into force from February 1, 2026. The move ends the GST compensation cess on tobacco and revises excise duties to meet fiscal and public health goals.

    Central Excise Amendment Act 2025

    The Act amends the Central Excise Act 1944 to revise excise duties on tobacco and tobacco related products, which continue to remain outside the complete GST framework.

    Key features

    Revision of excise duties

    The Act revises central excise rates to maintain and increase the overall tax burden after the withdrawal of GST compensation cess.

    Revised excise duty rates

    • Unmanufactured tobacco increased from 64 percent to 70 percent
    • Chewing tobacco increased from 25 percent to 100 percent
    • Hookah and gudaku tobacco increased from 25 percent to 40 percent
    • Smoking mixtures for pipes and cigarettes increased from 60 percent to 325 percent
    • Cigarettes increased from ₹200 to ₹735 per thousand sticks to ₹2,700 to ₹11,000 per thousand sticks

    Public health objective

    The higher duties aim to raise real tobacco prices faster than income growth, in line with global public health recommendations to discourage consumption.

    GST restructuring on tobacco

    • Beedis placed under 18 percent GST
    • All other tobacco products placed under 40 percent GST
    • New valuation mechanism introduced
       GST value to be calculated on the retail sale price declared on the package for products such as chewing tobacco, gutkha, khaini and jarda

    GST compensation cess

    What it is

    An additional levy imposed on select goods to compensate States for revenue losses due to GST implementation.

    Key points

    • Introduced in July 2017 along with GST
    • Initially meant for five years till June 2022
    • Extended till March 31, 2026 due to pandemic related revenue shortfall
    • Used mainly to repay about ₹2.7 lakh crore borrowed to compensate States
    • Levied over and above GST and central excise on tobacco
    • Being completely phased out from February 1, 2026

    Items covered under the cess

    • Tobacco and tobacco products
    • Pan masala
    • Aerated and caffeinated drinks
    • Luxury cars
    • Motorcycles above 350 cc
    • Specified firearms

    Prelims pointers

    • Tobacco products remain partly outside the GST framework
    • Central excise continues on tobacco even after GST
    • GST compensation cess ends from February 1, 2026
    • Higher tobacco taxation serves both revenue and public health objectives
    [2017] What is/are the most likely advantages of implementing ‘Goods and Services Tax (GST)’? 

    1. It will replace multiple taxes collected by multiple authorities and will thus create a single market in India. 

    2. It will drastically reduce the ‘Current Account Deficit’ of India and will enable it to increase its foreign exchange reserves. 

    3. It will enormously increase the growth and size of economy of India and will enable it to overtake China in the near future. 

    Select the correct answer using the code given below: 

    (a) 1 only (b) 2 and 3 only (c) 1 and 3 only (d) 1, 2 and 3

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  • Innovations in Sciences, IT, Computers, Robotics and Nanotechnology

    Bharat Sanchar Nigam Limited launches Voice over WiFi (VoWiFi)

    Prelims Only | Science Tech | Mains Paper 3: Awareness in various sc and tech fields

    Why in the news?

    On New Year, BSNL announced the nationwide rollout of Voice over WiFi also called Wi Fi Calling across all telecom circles in India.

    What is VoWiFi

    Voice over WiFi is a telecom service that allows users to make and receive voice calls and SMS over a Wi Fi network instead of a mobile tower.
     It uses IP Multimedia Subsystem and works with the same mobile number and default phone dialer without third party apps.

    How it works

    • Wi Fi connectivity: Phone connects to home, office, or public Wi Fi when cellular signal is weak or unavailable
    • SIM based authentication: User identity is verified through the SIM, ensuring secure communication
    • Internet routing: Voice is converted into data packets and transmitted over the internet
    • Seamless handover: Calls automatically switch between Wi Fi and cellular networks without interruption

    Key features

    • IMS based service with smooth Wi Fi to mobile network transition
    • Uses existing mobile number and handset dialer
    • No additional charges for Wi Fi calls
    • Improved indoor and remote area connectivity
    • Reduces congestion on mobile networks
    • Supported on most modern smartphones via a simple settings toggle

    Significance

    • Reliable calling in homes, offices, basements, and remote locations
    • Useful in rural and underserved areas with broadband access such as Bharat Fiber
    • Better call quality compared to weak cellular signals
    • Enhances BSNL’s network modernization efforts

    Prelims pointers

    • VoWiFi requires a stable Wi Fi connection but no mobile signal
    • Authentication is SIM based, unlike internet calling apps
    • Offered free of cost as normal voice calls
    [2019] With reference to communication technologies, what is/are the difference/differences between LTE (Long-Term Evolution) and VoLTE (Voice over Long-Term Evolution)? 

    1. LTE is commonly marketed as 3G and VoLTE is commonly marketed as advanced 3G. 

    2. LTE is data-only technology and VoLTE is voice-only technology. 

    Select the correct answer using the code given below: 

    (a) 1 only (b) 2 only (c) Both 1 and 2 (d) Neither 1 nor 2

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  • Higher Education – RUSA, NIRF, HEFA, etc.

    [2nd January 2026] The Hindu OpED: Mandating student presence, erasing learning

    op-ed snap | Education | Mains Paper 2: Health & Education

    PYQ Relevance

    [UPSC 2022] The Right of Children to Free and Compulsory Education Act, 2009 remains inadequate in promoting an incentive-based system for children’s education without generating awareness about the importance of schooling. Analyse.

    Linkage: The question links directly to GS II-Education and Human Resource Development, highlighting the limitations of compulsion-based policy instruments in achieving meaningful learning outcomes. It reinforces the broader UPSC microtheme of quality of education over mere access, aligning with debates on incentive-based, learner-centric education reforms versus coercive administrative approaches.

    Mentor’s Comment

    This article examines the recent Delhi High Court ruling that permits law students to sit for examinations without meeting rigid attendance requirements. The judgment has reopened a long-standing debate on compulsory attendance, academic autonomy, and the purpose of universities in India. The article interrogates whether physical presence ensures learning, or whether coercion undermines intellectual engagement. The discussion is relevant for GS Paper II (Governance, Institutions), GS Paper IV (Ethics in Education), and education reforms in India.

    Introduction

    Compulsory attendance reflects a paternalistic conception of education, rooted in the belief that students must be monitored into learning. Such a framework reduces universities to sites of compliance rather than curiosity. Drawing on decades of classroom experience, coercion produces neither seriousness nor scholarship. Instead, it erodes trust, autonomy, and intellectual responsibility. The High Court ruling disrupts this logic and compels Indian universities to confront a truth long evaded: a classroom that requires force to fill is already pedagogically bankrupt.

    Why in the News

    The Delhi High Court’s affirmation allowing law students to appear for examinations despite not meeting strict attendance thresholds marks a significant departure from entrenched administrative practices in Indian universities. For decades, attendance norms have functioned as instruments of surveillance rather than learning, often barring students from examinations irrespective of academic engagement. The ruling challenges this bureaucratic orthodoxy and reasserts a neglected principle: learning cannot be enforced through coercion. 

    Does Physical Presence Guarantee Learning?

    1. Attendance as obedience: Attendance functions as a marker of discipline rather than comprehension, measuring compliance instead of engagement.
    2. Learning as internal process: Intellectual growth depends on curiosity, reflection, and dialogue, not bodily presence.
    3. Pedagogical failure indicator: Enforced attendance signals ineffective teaching that fails to attract students voluntarily.
    4. Digital alternatives: Rote knowledge transmission can be accessed more efficiently through digital means, weakening the rationale for compulsory presence.

    Why Is Coercion Incompatible with Education?

    1. Punishment over introspection: Denying examinations penalises students instead of prompting teachers to reassess instructional value.
    2. Loss of trust: Mandatory attendance reflects institutional distrust in students’ intellectual autonomy.
    3. Ethical deficit: Coercion substitutes fear for motivation, undermining the moral foundation of education.
    4. Freirean critique: Education is dialogic and emancipatory, not mechanical deposition of information.

    What Do Exemplary Classrooms Reveal About Learning?

    1. Desire-driven attendance: The most effective classrooms are sustained by interest, not obligation.
    2. Transformative pedagogy: Engagement arises from collective reflection, inquiry, and interpretive openness.
    3. Experiential learning: Outdoor reading, discussion-based interpretation, and reflective inquiry deepen understanding.
    4. Absence made unthinkable: Great teachers render attendance irrelevant by making absence intellectually costly.

    How Has Bureaucratisation Distorted Indian Universities?

    1. Administrative overreach: Universities have shifted from intellectual spaces to regulated bureaucratic shells.
    2. Centralised control: Increasing surveillance has curtailed dissent, debate, and curricular freedom.
    3. Merit erosion: Administrative loyalty increasingly outweighs scholarly merit in institutional hierarchies.
    4. Pedagogical pacification: Attendance mandates function as tools to suppress autonomy and intellectual risk-taking.

    What Does the Judgment Imply for the Future of Teaching?

    1. Pedagogical innovation: Removing coercion compels teachers to create engaging learning environments.
    2. Shift in incentives: Motivation moves from external enforcement to intrinsic intellectual curiosity.
    3. Reframing commitment: Commitment is reflected in engagement, not mere physical presence.
    4. Institutional self-reflection: Universities must reassess whether their systems cultivate thinkers or followers.

    Conclusion

    The Delhi High Court ruling underscores a fundamental distinction: education facilitates discovery; it does not enforce compliance. By decoupling attendance from examination eligibility, the judgment exposes the futility of legislating intellectual engagement. Universities that prioritise presence over participation betray their core mission. The future of higher education depends on recognising that learning flourishes in freedom, not fear.

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  • Climate Change Impact on India and World – International Reports, Key Observations, etc.

    Why does India need climate resilient agriculture

    Explained | Enviro & Biodiversity | Mains Paper 3: Conservation, Environmental Pollution & Degradation, Eia

    Introduction

    India’s food system faces mounting stress from climate variability, declining soil health, and environmental degradation. Agriculture must simultaneously ensure food security for a growing population and adapt to rising climate risks. Conventional farming systems, particularly in rainfed regions, are proving inadequate under these pressures. Climate-resilient agriculture offers a pathway to sustain productivity while safeguarding ecological stability.

    Why in the news?

    Climate-resilient agriculture has gained renewed attention as India confronts increasing climate unpredictability, declining soil health, and rising pressure on food security. With nearly 51% of India’s net sown area being rainfed and contributing about 40% of total food production, climate variability poses a systemic risk to agricultural output and farmer livelihoods. 

    Why is Climate-Resilient Agriculture Necessary for India?

    1. Rainfed Agriculture Dependence: Nearly 51% of India’s net sown area remains rainfed, producing about 40% of national food output, increasing vulnerability to rainfall variability.
    2. Climate Variability Exposure: Erratic monsoons, heat stress, droughts, and extreme weather events directly affect crop yields and farm incomes.
    3. Population Pressure: Rapid population growth intensifies demand for reliable and stable agricultural productivity.
    4. Limits of Conventional Farming: Input-intensive methods show declining returns under climate stress and contribute to soil degradation and pollution.

    What is Climate-Resilient Agriculture (CRA)?

    1. Biotechnology Integration: Uses biofertilisers, biopesticides, and soil-microbiome analysis to reduce chemical dependence while maintaining productivity.
    2. Genomic Interventions: Enables development of genome-edited crops tolerant to drought, heat, salinity, and pests.
    3. Digital and AI-Based Tools: Applies AI-driven analytics to integrate climate and agronomic variables for location-specific advisories.
    4. Sustainability Orientation: Balances productivity enhancement with soil health and environmental protection.

    Where Does India Stand Today on CRA Adoption?

    1. Institutional Leadership: In 2011, the Indian Council of Agricultural Research launched the National Innovations in Climate Resilient Agriculture (NICRA) project.
    2. Technology Demonstration: CRA practices demonstrated across 448 climate-resilient villages.
    3. Key Interventions Implemented:
      1. Cropping Techniques: System of Rice Intensification (SRI), aerobic rice cultivation.
      2. Resource Efficiency: Zero-till wheat sowing, direct seeding of rice.
      3. Soil Management: In-situ incorporation of rice residues.
    4. Outcome: Enhanced adaptive capacity and resilience of farmers to climate variability.

    How Does the National Mission for Sustainable Agriculture Contribute?

    1. Productivity Enhancement: Focuses on improving yields, especially in rainfed regions.
    2. Integrated Farming Systems: Encourages crop-livestock-resource integration.
    3. Water Use Efficiency: Prioritises efficient irrigation and moisture conservation.
    4. Soil Health Management: Supports balanced nutrient use and organic matter restoration.
    5. Resource Synergy: Aligns conservation with productivity goals.

    What is the Role of Biotechnology and BioE3 Policy in CRA?

    1. Policy Positioning: BioE3 policy identifies CRA as a key thematic area for biotechnology-led solutions.
    2. Commercial Readiness: Several CRA-relevant technologies already commercialised.
    3. Bio-inputs Expansion: Companies supplying bio-inputs that improve soil health and reduce chemical dependency.
    4. Private Sector Participation: Signals transition from pilot-based models to scalable solutions.

    How is Digital Agriculture Strengthening Climate Resilience?

    1. AI-Enabled Advisory Services: Provide real-time, location-specific climate advisories.
    2. Precision Irrigation: Optimises water use under variable climatic conditions.
    3. Crop Health Monitoring: Enables early detection of stress and pest outbreaks.
    4. Yield Prediction Tools: Improve risk assessment and planning for farmers.

    Conclusion

    Climate-resilient agriculture is no longer optional for India’s food system. High dependence on rainfed farming, combined with climate volatility, necessitates a coordinated national strategy integrating biotechnology, digital tools, and institutional support. India’s early investments through NICRA, sustainable agriculture missions, and biotechnology policies provide a foundation, but scaling and coherence remain critical for long-term resilience.

    PYQ Relevance

    [UPSC 2016] Given the vulnerability of Indian agriculture to vagaries of nature, discuss the need for crop insurance and bring out the salient features of the Pradhan Mantri Fasal Bima Yojana (PMFBY). 

    Linkage: This question directly links to GS Paper III themes of agricultural vulnerability, climate risk, and risk-mitigation mechanisms. Climate-resilient agriculture frameworks emphasize crop insurance (PMFBY) as a financial resilience tool to buffer farmers against increasing climate-induced crop losses.

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  • Foreign Policy Watch: India – EU

    As EU carbon tax kicks in, India’s metal exports face price threat

    Explained | International Relations | Mains Paper 2: Bilateral, Regional and Global Groupings and agreements involving India

    Introduction

    The European Union has begun implementing the Carbon Border Adjustment Mechanism (CBAM), imposing a carbon-linked levy on imports from carbon-intensive sectors. India, a major exporter of steel and aluminium to the EU, now faces higher compliance costs and potential loss of competitiveness. The mechanism represents a departure from tariff-based trade barriers towards climate-conditioned trade regulation, with significant implications for developing economies.

    Why in the News?

    CBAM has entered its implementation phase for the first time globally, covering carbon-intensive imports such as steel, aluminium, cement, fertilisers, electricity, and hydrogen. Indian metal exports to the EU now face an estimated price increase of 15-22%, creating a direct cost shock for exporters. The mechanism shifts climate action costs to exporting countries, raising concerns over equity, WTO compliance, and the future of South–North trade relations.

    What Is the EU’s Carbon Border Adjustment Mechanism (CBAM)?

    1. Carbon Pricing Mechanism: Imposes a levy on imported goods equivalent to the EU’s internal carbon price.
    2. Sectoral Coverage: Applies to steel, aluminium, cement, fertilisers, power, energy-intensive inputs.
    3. Objective Framing: Prevents carbon leakage by aligning import prices with EU climate standards.
    4. Operational Shift: Replaces implicit trade barriers with explicit climate-linked taxation.

    Why Are India’s Metal Exports Particularly Vulnerable?

    1. Export Concentration: India largely exports steel and aluminium to the EU, both CBAM-covered sectors.
    2. Production Technology: Indian steel manufacturing relies heavily on blast furnaces, which are more carbon-intensive.
    3. Scrap Constraint: Limited availability of steel scrap restricts transition to electric arc furnaces (EAFs).
    4. Cost Pass-through Limits: MSME exporters lack pricing power to absorb compliance costs.

    How Will CBAM Increase Export Costs for India?

    1. Price Impact: Estimates suggest a 15-22% increase in landed cost of Indian metal exports.
    2. Compliance Burden: Requires detailed plant-level emissions data, often unavailable with MSMEs.
    3. Default Emissions Risk: Absence of verified data may lead to higher default emission values.
    4. Competitiveness Erosion: Raises risk of market substitution by lower-carbon producers.

    What Are the Key Concerns Raised by Indian Exporters and Experts?

    1. Equity Concerns: Undermines the principle of Common but Differentiated Responsibilities (CBDR).
    2. Developmental Impact: Disproportionately affects developing economies with legacy infrastructure.
    3. WTO Compatibility: Raises questions on non-discrimination and disguised protectionism.
    4. Technology Lock-in: Penalises countries still transitioning to greener industrial processes.

    Why Is Scrap Availability Central to the Debate?

    1. Technology Divide: EAFs use scrap and emit less carbon than blast furnaces.
    2. Global Scrap Control: US, EU, and UK dominate scrap reserves and exports.
    3. Cost Advantage: Scrap-based producers face lower CBAM exposure.
    4. Structural Disadvantage: Indian producers lack access to adequate scrap volumes.

    What Is India’s Position on CBAM?

    1. Policy Opposition: India views CBAM as a trade barrier rather than a climate solution.
    2. Legal Standpoint: Challenges unilateral climate measures under multilateral trade norms.
    3. Negotiation Strategy: Seeks carve-outs for MSMEs and developing countries.
    4. Global Forums: Raises concerns at WTO and UNCTAD platforms.

    Does CBAM Meaningfully Address Climate Change?

    1. Limited Impact: Expected to mitigate only 0.1% of global CO₂ emissions.
    2. Exported Emissions: Risks shifting emissions geographically rather than reducing them.
    3. Technology Gap: Fails to support transition financing for developing countries.
    4. Policy Mismatch: Emphasises taxation over technology diffusion.

    What Are the Implications for Global Trade Governance?

    1. Precedent Setting: Encourages climate-linked trade barriers by developed economies.
    2. Fragmentation Risk: Weakens multilateral trade consensus.
    3. South-North Divide: Reinforces asymmetry in climate responsibility.
    4. Regulatory Spillover: UK and US considering similar mechanisms.

    Conclusion

    The EU’s Carbon Border Adjustment Mechanism marks a decisive shift in global climate governance by embedding carbon costs into international trade. While framed as a tool to prevent carbon leakage, its unilateral design risks undermining the principles of equity and common but differentiated responsibilities that anchor the global climate regime. For India, the immediate challenge lies in protecting export competitiveness without diluting climate commitments, while the larger task is to push for multilateral, finance- and technology-supported pathways to industrial decarbonisation. The future credibility of global climate action will depend on whether climate ambition is advanced through cooperative transition mechanisms or enforced through trade barriers that deepen developmental asymmetries.

    PYQ Relevance

    [UPSC 2022] Discuss global warming and mention its effects on global climate. Explain the control measures to bring down the level of greenhouse gasses which cause global warming in the light of the Kyoto Protocol 1997. 

    Linkage: CBAM represents a post-Kyoto unilateral climate control measure linked with trade.

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