Content
Piped Natural Gas (PNG) – India’s Cooking Energy Shift
Dengue Vaccine (Qdenga / TAK-003)
Census 2027 – Self-Enumeration & Digital Census
Samrat Samprati & Spread of Jainism
Heatwaves in India – IMD Forecast
Fiscal Deficit Trends (2025–26)
Piped Natural Gas (PNG) – India’s Shift in Cooking Energy
What is PNG?
PNG (Piped Natural Gas) is natural gas supplied directly to households via pipelines for cooking and heating.
Derived from domestic gas fields or imported LNG (regasified) and delivered continuously.
Cleaner fuel: emits ~25% less CO₂ than LPG, no soot, no storage required.
Relevance
GS III (Economy): Energy security, import dependence, subsidy burden.
GS III (Environment): Cleaner fuel transition, emission reduction.
GS III (Infrastructure): Gas grid, CGD networks, urban infrastructure.
Practice Question
Q1.Discuss the role of Piped Natural Gas (PNG) in India’s transition towards a gas-based economy. (10M)
LPG vs LNG vs PNG vs CNG
LPG: Propane–butane mix; stored in cylinders; widely used for cooking.
LNG: Natural gas liquefied at –160°C for transport; regasified at destination.
PNG: Natural gas supplied via pipelines to homes/industries.
CNG: Compressed natural gas used as transport fuel (vehicles).
Why India is Pushing PNG Now ?
High LPG import dependence (~60%), vulnerable to geopolitics (e.g., Strait of Hormuz disruption).
Natural gas has diversified global supply sources, improving energy security.
PNG ensures continuous supply (no refill logistics) and reduces subsidy burden.
Aligns with gas-based economy target (15% energy mix by 2030).
How PNG System Works ?
Natural gas → Liquefied (LNG) → transported via LNG carriers → regasified → pipelines → households.
Delivered through City Gas Distribution (CGD) networks for last-mile connectivity.
Uses SE ID–like metering system (meter-based billing, no cylinder handling).
Can PNG Replace LPG?
PNG is a “drop-in replacement” for cooking—similar flame, efficiency.
1 kg natural gas gives higher energy than LPG, making it efficient.
No major behavioural change required for households.
However, industrial uses may need equipment recalibration.
Why LPG Dominated Earlier ?
Ease of last-mile delivery (cylinders via trucks even in remote areas).
No need for expensive pipeline infrastructure.
Strong government push via Ujjwala Yojana (33 crore connections).
PNG requires high upfront capital and urban infrastructure readiness.
Economic Dimension
PNG reduces import bill and subsidy burden on LPG.
Lower logistics cost in long run (no transport/refill chain).
High capex for pipelines (~25,000 km existing + 10,500 km under construction).
Pricing needs to remain competitive with subsidised LPG.
Governance & Policy Push
Target: 12+ crore PNG connections by 2034.
CGD licences expanded to 300+ geographical areas.
Policy reforms: time-bound approvals, mandatory PNG adoption in some areas.
Push for switching households from LPG → PNG (dual holding restricted).
Challenges
Pipeline infrastructure gaps—large regions (East, NE, South) under-covered.
Last-mile connectivity issues in congested urban areas.
90 CGD areas not yet linked to trunk pipelines.
High initial cost and slow adoption in rural/semi-urban areas.
Limited storage capacity → LNG supply disruptions risk (just-in-time system).
Supply Constraints
Current domestic gas production insufficient for mass PNG expansion.
Need ~30–35% increase in production to meet future demand.
ONGC KG Basin projects may boost output (~10–15%).
Increased reliance on LNG imports inevitable.
Environmental Dimension
PNG is cleaner than LPG and coal, aiding climate commitments (NDCs).
Reduces indoor air pollution compared to biomass fuels.
Supports transition to low-carbon economy.
Strategic Significance
Reduces dependence on West Asia LPG supply chokepoints.
Enhances energy security via diversified LNG imports (US, Australia, Africa).
Supports India’s goal of becoming a gas-based economy.
Way Forward
Infrastructure Expansion : Accelerate national gas grid and CGD network penetration in underserved regions.
Domestic Production Boost : Enhance exploration via HELP policy, ONGC investments, KG basin projects.
Affordable Pricing : Ensure PNG pricing parity with LPG subsidies for mass adoption.
Integrated Energy Strategy : Balance gas allocation between fertiliser, power, and household sectors.
Storage & Supply Security : Develop strategic LNG storage reserves to avoid supply shocks.
Prelims Pointers
LNG liquefied at –160°C; volume reduced ~1000 times.
PNG supplied via CGD networks.
CNG used in transport sector.
LPG = propane + butane mixture.
Dengue Vaccine (Qdenga / TAK-003)
Why in News
India’s first dengue vaccine Qdenga (TAK-003) cleared by DCGI expert panel for ages 4–60.
Marks shift from vector-control approach → vaccine-based disease management.
Relevance
GS II (Health): Public health policy, immunisation strategy.
GS III (Science & Tech): Vaccine development, biotechnology.
GS III (Environment): Climate change & vector-borne diseases.
Practice Question
Q1.Discuss the potential and limitations of dengue vaccines in India’s public health strategy. (10M)
Static Background
Dengue caused by 4 serotypes (DENV-1 to 4); transmitted by Aedes aegypti mosquito.
Infection with one serotype gives lifelong immunity to that serotype but not others.
Secondary infection may cause severe dengue (Antibody-Dependent Enhancement).
Key Features of Qdenga
Tetravalent vaccine (targets all 4 serotypes); developed on DENV-2 backbone.
No pre-vaccination screening required (advantage over earlier Dengvaxia).
Proven efficacy in reducing severe dengue and hospitalisation.
Requires 2 doses (3-month gap); approved in 40+ countries.
Public Health Significance
Reduces ICU burden, hospitalisation, and mortality, especially among children.
Helps decongest healthcare systems during peak dengue seasons.
Marks transition towards preventive healthcare strategy.
Limitations
Uneven efficacy across serotypes—strong for DENV-2, weaker for DENV-3 & DENV-4.
India seeing rising DENV-3 prevalence (~20–30%), affecting vaccine effectiveness.
Vaccine does not prevent infection fully—only reduces severity (“disease-modifying”).
Hence, outbreaks will continue despite vaccination.
Epidemiological Concerns
All 4 serotypes co-circulate in India; dynamic regional variation.
Changing serotype dominance may reduce population-level effectiveness.
Risk of false public perception of complete protection.
Economic Dimension
Cost: ₹6,000–12,000 per full course → affordability challenge.
Likely initial uptake in private sector or targeted high-burden areas.
High cost limits universal immunisation feasibility.
Governance & Policy Dimension
SEC mandated post-marketing surveillance studies for Indian conditions.
Requires integration with National Vector Borne Disease Control Programme (NVBDCP).
Policy challenge: introduce now vs wait for better vaccines.
Future Pipeline
Indigenous vaccine “DengiAll” (ICMR + Panacea Biotec) in Phase III trials.
Potential advantages:
Better balanced serotype protection
Possible single-dose regimen
Expected availability: ~2027.
Challenges
Serotype variability complicates vaccine effectiveness.
Affordability and access barriers for large population.
Continued dependence on vector control measures.
Risk of complacency reducing preventive behaviours.
Way Forward
Integrated Disease Control Strategy : Combine vaccination + vector control + surveillance systems.
Targeted Vaccination Approach : Prioritise high-burden regions and vulnerable groups (children).
Strengthening Surveillance : Monitor serotype distribution and vaccine effectiveness in real time.
Affordable Access : Explore public procurement, subsidies, and inclusion in UIP (if viable).
Support Indigenous Innovation : Accelerate Indian vaccine pipeline (DengiAll) for long-term solution.
Prelims Pointers
Dengue vector: Aedes aegypti (day-biting mosquito).
Serotypes: DENV-1, 2, 3, 4.
Qdenga = TAK-003 (tetravalent dengue vaccine).
ADE (Antibody-dependent enhancement) → severe dengue risk.
Census 2027 – Self-Enumeration Rollout & Digital Census Transformation
Why in News ?
Around 55,000 households used self-enumeration portal on Day 1, marking early success of India’s first Digital Census initiative.
Launch across 8 States/UTs signals shift towards citizen-led, technology-driven data collection.
Relevance
GS II (Governance): Digital governance, welfare targeting.
GS III (Tech): Data governance, cybersecurity.
GS I (Society): Demographic profiling.
Practice Question
Q1.Evaluate the benefits and risks of self-enumeration in Census 2027. (10M)
Static Background
Census conducted under Census Act, 1948; decennial exercise (last: 2011).
Two phases:
Houselisting & Housing Census (HLO)
Population Enumeration (PE) (scheduled Feb 2027).
Provides basis for policy planning, delimitation, welfare targeting, and fiscal transfers.
Key Features of Self-Enumeration
First-ever web-based self-enumeration facility (16 languages) enabling citizen participation.
Covers 33 questions in HLO phase—housing conditions, assets, amenities, digital access.
Generates unique Self-Enumeration ID (SE ID) for verification during enumerator visit.
Hybrid model: digital entry + physical verification ensures accuracy and inclusivity.
Governance & Administrative Dimension
Enhances efficiency, transparency, and speed of census operations.
Reduces manual errors, duplication, and delays in data processing.
Enables real-time monitoring and centralized data management.
Reflects shift towards e-governance and Digital India ecosystem integration.
Economic Dimension
Accurate household data supports targeted welfare schemes and subsidy rationalisation.
Facilitates better infrastructure planning (housing, electricity, water, digital access).
Supports labour market and consumption pattern analysis for policy formulation.
Improves ease of doing business through reliable demographic data.
Social Dimension
Captures critical indicators: housing quality, sanitation, digital divide, asset ownership.
Helps identify vulnerable populations and regional disparities.
Digital participation may exclude elderly, rural, and digitally illiterate populations.
Encourages citizen engagement and ownership of governance processes.
Technology & Data Governance
Use of secure web portals, encryption, and authentication mechanisms.
Integration with mobile-based enumerator apps for verification.
Raises concerns on data privacy, consent, and cybersecurity risks.
Potential for AI-based analytics and big data governance in future.
Data & Facts
~55,000 households self-enumerated on Day 1.
Portal active 15 days before field enumeration.
Census budget: ₹11,718 crore approved.
Administrative boundaries frozen Jan 2026–March 2027 for data consistency.
Challenges
Digital divide limiting participation in rural and marginalized communities.
Risk of data inaccuracies in self-reported entries.
Privacy concerns amid absence of robust data protection enforcement.
Logistical complexity of large-scale digital + physical hybrid enumeration.
Political sensitivity around caste data collection in Phase II.
Way Forward
Bridging Digital Divide : Establish assisted enumeration centres and digital literacy campaigns for inclusive participation.
Strengthening Data Security : Align with Digital Personal Data Protection framework ensuring privacy and trust.
Capacity Building : Train enumerators in digital tools, verification processes, and grievance handling.
Leveraging Data for Governance : Integrate Census data with policy dashboards and evidence-based planning systems.
Ensuring Transparency & Trust : Promote public awareness campaigns and grievance redressal mechanisms.
Prelims Pointers
Census under Census Act, 1948; data is confidential.
Two phases: HLO and Population Enumeration.
Self-enumeration + SE ID introduced for first time.
Census 2027 includes digital data capture and possible caste enumeration.
Samrat Samprati & Spread of Jainism – Mauryan Religious Policy
Why in News ?
PM inaugurated Samrat Samprati Museum (Gandhinagar) on Mahavir Jayanti, highlighting role of Ashoka’s grandson in spreading Jainism.
Renewed focus on plural religious patronage under Mauryas, beyond Ashoka’s Buddhist legacy.
Relevance
GS I (History & Culture): Mauryan polity, religious pluralism.
GS IV (Ethics): Ahimsa, tolerance.
Practice Question
Q1. Highlight the role of lesser-known rulers like Samprati in shaping India’s religious landscape. (10M)
Static Background
Mauryan Empire (4th–2nd century BCE) marked first pan-Indian political unification.
Religious diversity: Buddhism, Jainism, Ajivikas coexisted alongside Vedic traditions.
Chandragupta Maurya (Jain tradition) associated with Jainism; Ashoka with Buddhism.
Jainism founded by Mahavira (6th century BCE) emphasizing ahimsa, asceticism, and non-possession.
Ashoka vs Samprati – Comparative Religious Patronage
Ashoka promoted Buddhism via Dhamma, edicts, stupas, and missionaries (Sri Lanka, Central Asia).
Samprati seen as Jain counterpart, promoting Jainism through temples, icons, and monk networks.
Both represent state-supported religious expansion with ethical governance dimension.
Role of Samrat Samprati in Spread of Jainism
Ruled circa 230–220 BCE, grandson of Ashoka, son of Kunala.
Converted to Jainism under monk Suhasti (8th Jain acharya) at Ujjain.
Patronised construction and renovation of thousands of Jain temples across India.
Facilitated movement of Jain monks to distant regions, expanding geographic spread.
Promoted icon worship (Jina images)—institutionalising ritual practices in Jainism.
Played key role in western India (Gujarat–Rajasthan) Jain consolidation.
Governance & Administrative Dimension
Reflects religious pluralism and tolerance under Mauryan statecraft.
Use of state resources for religious patronage to legitimise rule.
Strengthened cultural integration across regions via shared religious institutions.
Indicates decentralised religious policy post-Ashoka (multiple traditions coexisting).
Social & Cultural Dimension
Expansion of Jainism through merchant networks and urban centres.
Reinforced ahimsa-based ethical framework influencing society and economy (trade, vegetarianism).
Development of temple culture and iconography, shaping Jain identity.
Contributed to regional cultural traditions in western and southern India.
Economic Dimension
Jainism spread along trade routes and urban guild networks, linking economy with religion.
Temple construction stimulated local economies (artisans, architecture, donations).
Merchant patronage aligned with Jain ethics of non-violence and commerce.
Historiography & Sources
Samprati’s accounts largely from Jain texts (especially Shvetambara traditions).
Limited epigraphic evidence, leading to debates on historical accuracy.
Works like “Samprati Rajya Charitra” and writings of John E. Cort provide narratives.
Example of sectarian historiography shaping historical memory.
Significance
Demonstrates continuity of religious patronage beyond Ashoka’s Buddhism-centric narrative.
Highlights role of lesser-known rulers in cultural and religious diffusion.
Shows Mauryan Empire as pluralistic rather than mono-religious polity.
Strengthens understanding of state–religion interface in ancient India.
Challenges / Criticisms
Myth vs history debate due to lack of inscriptional corroboration.
Over-attribution of temples/icons to Samprati in absence of evidence.
Dominance of Ashoka narrative overshadowing other Mauryan contributions.
Sectarian bias between Digambara vs Shvetambara traditions.
Way Forward
Balanced Historiography : Promote multi-source historical analysis (archaeology + texts) to validate narratives.
Integrating Lesser-Known Figures : Include rulers like Samprati in mainstream historical discourse and textbooks.
Cultural Heritage Preservation : Protect and document Jain temple heritage linked to early historical traditions.
Interfaith Understanding : Highlight Mauryan pluralism to promote contemporary values of tolerance and coexistence.
Prelims Pointers
Samprati: Grandson of Ashoka; associated with Jainism.
Suhasti: Jain monk linked to Samprati’s conversion.
Chandragupta Maurya associated with Shravanabelagola (Jain tradition).
Jain sects: Digambara and Shvetambara.
Most parts of India to see more heatwave days: IMD
Why in News ?
IMD forecasts spatial temperature divergence: cooler-than-normal summer in north India, but above-normal temperatures and heatwaves elsewhere.
April rainfall expected ~12% above normal, while El Niño risk by July raises concerns for monsoon 2026.
Relevance
GS I (Geography): Monsoon, Western Disturbances, ENSO.
GS III (Environment): Climate change, extreme weather.
GS III (Disaster Management): Heatwave mitigation.
Practice Question
Q1.Analyse the role of climate variability (ENSO, WDs) in influencing India’s monsoon. (15M)
Static Background
India’s climate driven by monsoon system (SW Monsoon: June–Sept) dependent on land–sea thermal gradient.
Heatwaves: IMD defines ≥40°C plains (≥4.5°C above normal) as heatwave conditions.
El Niño: warming of Central Pacific → weakens monsoon via reduced Walker circulation.
Western Disturbances (WDs): Mediterranean-origin systems bringing winter–spring rainfall to north India.
Key Observations (IMD Data)
Above-normal temperatures in east, northeast, central and parts of northwest & peninsular India.
North India cooler-than-normal due to increased Western Disturbances (8 vs normal 5–6).
Heatwave-prone regions: Odisha, WB, Andhra, TN, Gujarat, Maharashtra, Karnataka.
April rainfall likely 12% above normal, indicating active pre-monsoon conditions.
Environmental & Climatic Dimension
Uneven warming reflects regional climate variability and circulation anomalies.
Increased WDs → cloud cover and rainfall → lower land heating in north India.
Reduced land heating weakens thermal gradient → weaker monsoon pull mechanism.
Possible “super El Niño” risk may override local cooling effects.
Economic Dimension
Heatwaves in east/central India impact labour productivity, agriculture, and power demand.
Above-normal April rainfall may support early soil moisture and pre-kharif activities.
Weak monsoon risk affects kharif sowing, food inflation, and fertilizer demand.
Energy demand spikes due to cooling needs → pressure on power infrastructure.
Social Dimension
Heatwaves increase mortality, health risks (heatstroke, dehydration)—vulnerable groups worst affected.
Regional disparity: north relief vs eastern/central stress.
Impacts urban poor, outdoor workers, and informal sector disproportionately.
Water stress risks intensify in heatwave-prone regions.
Governance & Disaster Management
IMD forecasts enable early warning systems and heat action plans.
NDMA guidelines on heatwave preparedness, urban cooling strategies, and water management.
Need for state-level coordination in health advisories and disaster mitigation.
Link with climate adaptation policies (NAPCC, State Action Plans).
Data & Facts
April rainfall forecast: ~12% above Long Period Average (LPA).
Western Disturbances: 8 events vs normal 5–6 (March 2026).
Historical pattern: 2004, 2014 cooler summers → weak monsoon years.
India received normal/above-normal monsoon since 2020 (except 2023).
Challenges
Forecast uncertainty: complex interaction between WDs, ENSO, IOD, local factors.
Increasing frequency of extreme weather events due to climate change.
Weak institutional capacity in heatwave mitigation at local level.
Agriculture remains monsoon-dependent (~50% net sown area rainfed).
Urban areas face heat island effect worsening impacts.
Way Forward
Strengthening Climate Forecasting : Improve seasonal prediction models integrating ENSO, IOD, and regional variability.
Heatwave Mitigation Strategies : Implement city-level heat action plans, cooling infrastructure, and work-hour regulations.
Climate-Resilient Agriculture : Promote drought-resistant crops, micro-irrigation, and contingency crop planning.
Water Resource Management : Enhance rainwater harvesting, groundwater recharge, and reservoir management.
Institutional Preparedness : Strengthen NDMA–IMD coordination and local disaster response systems.
Prelims Pointers
El Niño = warming of Central/Eastern Pacific affecting Indian monsoon negatively.
Western Disturbances originate in Mediterranean region.
Heatwave criteria defined by IMD temperature thresholds.
LPA = benchmark average rainfall (1961–2010 baseline).
Fiscal Deficit Trends (2025–26)
Why in News ?
Centre’s fiscal deficit reached ₹12.52 trillion (80.4% of BE) by Feb-end 2026, lower than 85.8% last year, indicating improved fiscal discipline.
Government targets 4.4% of GDP fiscal deficit (₹15.58 trillion) for FY 2025–26, aligning with consolidation roadmap.
Relevance
GS III (Economy): Fiscal policy, macroeconomic stability.
GS II (Governance): Budget management, fiscal discipline.
Practice Question
Q1.Analyse the significance of fiscal deficit targets in ensuring macroeconomic stability. (10M)
Static Background
Fiscal Deficit = Total Expenditure – Total Receipts (excluding borrowings).
Indicates government borrowing requirement and macroeconomic stability.
Governed by FRBM Act, 2003, targeting fiscal prudence and debt sustainability.
India follows glide path consolidation post-COVID (peak ~9.2% in FY21 → 4.4% target FY26).
Key Data & Trends
Fiscal Deficit: ₹12.52 trillion (80.4% of target) vs 85.8% previous year → improved control.
Total Receipts: ₹27.91 trillion (82% of BE); strong revenue mobilisation.
Tax Revenue: ₹21.45 trillion; Non-tax revenue: ₹5.8 trillion.
Total Expenditure: ₹40.44 trillion (81.5% of BE); balanced spending pattern.
Capex: ~₹9.29 trillion; Revenue Expenditure: ~₹31.15 trillion.
Governance & Administrative Dimension
Reflects effective fiscal management by Ministry of Finance and CGA monitoring system.
Improved budget execution efficiency and expenditure rationalisation.
Emphasis on capex-led growth strategy while maintaining fiscal prudence.
Supports credibility of medium-term fiscal consolidation roadmap.
Economic Dimension
Lower fiscal deficit enhances macroeconomic stability and investor confidence.
Capex focus generates multiplier effect (2.5–3x) boosting growth and employment.
Controlled deficit helps manage inflationary pressures and interest rates.
Strong tax buoyancy reflects formalisation and economic recovery.
Social Dimension
Continued revenue expenditure ensures subsidies (₹3.89 trillion) for food, fertilizer, welfare.
Balancing growth (capex) with inclusion (subsidies, welfare spending).
Fiscal discipline ensures long-term sustainability of social sector schemes.
Financial & Debt Implications
Lower deficit reduces government borrowing needs → lowers crowding-out of private investment.
Helps stabilise public debt trajectory (~81% of GDP combined Centre + States).
Improves sovereign credit rating outlook and capital inflows.
External & Global Context
Fiscal performance maintained despite global uncertainties (oil price volatility, West Asia tensions).
Enhances India’s position as stable emerging economy amid global slowdown risks.
Critical for maintaining rupee stability and managing current account pressures.
Challenges
High interest payments (~₹10.65 trillion) constrain fiscal space.
Persistent reliance on indirect taxes → regressive burden concerns.
Pressure from subsidy commitments and welfare demands.
Need to sustain tax buoyancy amid global slowdown risks.
Off-budget liabilities and contingent risks reduce true fiscal transparency.
Way Forward
Sustaining Fiscal Consolidation : Adhere to credible FRBM glide path with transparent fiscal targets and reporting.
Enhancing Revenue Mobilisation : Broaden tax base, improve compliance, and rationalise GST structure.
Expenditure Rationalisation : Shift towards productive capital expenditure while pruning inefficient subsidies.
Debt Management Strategy : Develop medium-term debt framework to reduce interest burden and rollover risks.
Strengthening Fiscal Federalism : Ensure predictable transfers and state-level fiscal discipline for overall macro stability.
Prelims Pointers
Fiscal Deficit excludes borrowings in receipts calculation.
FRBM Act enacted in 2003.
Capital Expenditure creates assets; revenue expenditure does not.
CGA releases monthly fiscal data.