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11 topicsGS-1: 3GS-2: 3GS-3: 5
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GS-2Editorial

1.Debate on 50% Reservation Cap (Reservation Cap)

The Hindu

What & Where

Reservation-cap: judicially evolved 50% ceiling on caste-based quotas in public jobs & education across India

Key processes: Supreme Court tests of ‘reasonableness’, creamy-layer exclusion, sub-categorisation studies (Rohini Commission)

Geography: Breached by States like Tamil Nadu (69%), Haryana, Maharashtra; centre breached via 10% EWS quota

Quick Facts for MCQs

Legal & Policy

  • Indra Sawhney allows 50% breach only under extraordinary circumstances; EWS held outside this limit
  • Constitution Articles 15(4) & 16(4) empower caste quotas; EWS via 103rd Amendment inserted 15(6), 16(6)

Demographic Reality

  • Mandal estimate: OBCs >52% population; combined SC+ST ~25%; backward share exceeds current 50% cap
  • Caste census demanded 2027 to furnish granular data for rational quota calibration

Reform Proposals

  • Implement Rohini sub-categorisation to re-allocate 27% OBC quota more equitably
  • Introduce creamy-layer test for SC/ST as hinted in Davinder Singh notice 2024

Social Concerns

  • Excessive quotas feared to erode administrative efficiency; critics cite merit loss
  • Supporters argue substantive equality necessitates flexible ceilings matching historic discrimination

Key Data Points

FeatureData-Point
First 50% ideaBalaji v. State of Mysore 1962
Landmark cap verdictIndra Sawhney (9-judge) 1992
Creamy layer originIndra Sawhney for OBCs
Substantive-equality caseN.M. Thomas 1975
Cap breached centrallyJanhit Abhiyan 2022; 10% EWS
OBC benefit skew97% benefits to 25% sub-castes (Rohini)
Unfilled reserved posts40–50% in Union gov’t
Ambedkar stanceQuotas as limited, temporary correctives
Proposed Bihar quota85% (caste survey, 2023)
Tamil Nadu quota share69% since 1994 (in IX Sch.)

Related UPSC Prelims PYQs

CDS_GK, GEO_GS 2023PYQ 1

Which one of the following amendments to the Constitution of India has introduced reservations in education and in public employment for people from the Economically Weaker Sections (EWS) of society?

CDS_GK, GEO_GS 2025PYQ 2

With reference to Article 16 of the Constitution of India, which of the following statements is/are correct?

GS-2Polity

2.GST Council Two-Slab Framework (GST Council)

LiveMint

What & Where

GST Council: constitutional body under Article 279A, 101st Amendment, governs Goods & Services Tax across India

56th meeting: cleared rationalised two-slab GST—5 % & 18 % plus special 40 % for sin/luxury goods

Operates pan-India; headquartered in New Delhi under Union Finance Ministry

Quick Facts for MCQs

Legal & Policy

  • Recommendation power extends to threshold limits, special disaster cess, model law amendments, harmonisation across jurisdictions
  • Two-slab structure needs CGST & SGST amendment notifications; Parliament/state legislatures to ratify rules
  • Equity principle: essentials taxed lower, luxury/sin taxed high aligning with Article 14 jurisprudence

Institutional Design

  • Weightage formula ensures states’ collective veto despite Centre presence; 75 % bar guards federal balance
  • Quorum and consensus norms minimise litigation by fostering cooperative federalism
  • Governor-nominated member enables state voice continuance under President’s Rule

Economic Angle

  • Slab compression aims compliance ease, invoice matching simplification, reduced classification disputes
  • 40 % cess expected to protect revenue neutrality while deterring demerit good consumption
  • Rationalisation projected to boost buoyancy, widen base, curb tax-evasion leakages

Key Data Points

FeatureData-Point
Constitutional article279A
Amendment act101st Constitution (2016)
Council chairUnion Finance Minister
Other Union memberMoS Finance/Revenue
State representationFinance/Tax ministers of all States/UTs
Governor nominee allowedWhen President’s Rule imposed
Quorum requirement≥ 50 % total members
Voting weightUnion Govt 1/3 : States/UTs 2/3
Passage threshold≥ 75 % weighted votes
Preferred decision modeConsensus
Approved GST slabs5 % & 18 %
Special rate40 % on sin/luxury goods
Meeting number/date56th; 2024 (LM report)
Key functionRecommend GST rates, exemptions, laws
Inverted duty fixExplicit Council mandate

Related UPSC Prelims PYQs

CDS_GK 2024PYQ 1

Which one of the following statements regarding GST is not correct?

CDS_GK 2021PYQ 2

Following the Constitution (One Hundred and First Amendment) Act, 2016, the Parliament of India enacted quite a few GST Acts in the year 2017. Which one of the following does not fall in this category?

GS-3Editorial

3.Challenges to India’s Export Competitiveness (Export Competitiveness)

EPW

What & Where

India’s export basket: merchandise plus services; US alone absorbs ≈20 % of goods shipments.

Shock: May 2024 US decision slaps 50 % tariff on substantial Indian merchandise lines.

Global presence: India holds 1.81 % share in goods, 4.2 % in services (2024).

Quick Facts for MCQs

Sectoral Performance

  • Agriculture share: 0.85 % (1990) → 2.22 % (2024); fuel & mining 0.32 % → 2.62 %.
  • Bright spots: textiles 5.77 %, pharma 2.56 %, steel 2.64 % global shares.
  • Services led by IT–BPM; telecom + business services jointly ≈40 % of service exports.

Structural Challenges

  • Competitiveness: high power, credit, logistics costs plus complex regulation erode margins.
  • Manufacturing depth thin in electronics, precision machinery, advanced materials.
  • WTO dispute arm weakened; protectionism, reshoring amplify market barriers.

Policies & Schemes

  • Export Promotion Mission 2025: Niryat Protsahan (credit), Niryat Disha (market, logistics).
  • RoDTEP 2025 expansion refunds embedded taxes for steel, pharma, chemicals, DTA units.
  • BHARATI incubates 100 agri-food startups; e-commerce export hubs ease MSME shipping.

Economic Angle

  • Export slack risks GDP momentum, jobs in labour-intensive sectors, and wider BoP gap.
  • Shrinking trade share dilutes India’s leverage in global negotiations and FTAs.

Way Forward

  • Logistics overhaul: target cost cut to 8 % of GDP; expedite multimodal corridors.
  • Market diversification toward Africa, Latin America, ASEAN; leverage new FTAs.
  • Incentivise R&D, quality upgrades, GVC integration in electronics, EVs, green tech.

Key Data Points

FeatureData-Point
Exports / GDP (1990)7.1 %
Exports / GDP (2010)20.4 %
Exports / GDP (2024)21.2 %
Global goods share (1990)0.51 %
Global goods share (2024)1.81 %
Global services share (2010)2.9 %
Global services share (2024)4.2 %
US tariff hike50 %
Logistics cost in India13–14 % of GDP
Manufacturing global share (2024)1.73 %

Related UPSC Prelims PYQs

CDS_GK 2024PYQ 1

If India enters into Free Trade Agreements (FTAs) with other nations, then the growth of exports of India would depend upon which of the following?

CDS_GK 2025PYQ 2

Consider the following statements with respect to performance of the merchandise export of India in FY–2024:

GS-1History

4.Self-Respect Social Reform Movement (Social Reform)

The Hindu
Illustration for Self-Respect Social Reform Movement (Social Reform)

What & Where

Movement: radical anti-caste, anti-patriarchy reform launched 1925 Tamil Nadu via Tamil weekly Kudi Arasu

Ideology: rationalism, self-respect, Dravidian identity over ritual hierarchy

Geography: centred in Tamil districts; later ideological spread across South India

Quick Facts for MCQs

Social Concerns

  • Caste: eradication of Brahmanical dominance; shift focus from elite to non-Brahmin masses
  • Gender: advocacy of inter-caste and self-choice unions; property and reproductive rights for women
  • Religion: rejection of superstition and Congress-style religion-tinged nationalism

Political Impact

  • Awakening: instilled dignity and political consciousness in non-Brahmin electorate
  • Legacy: foundation for Dravidian politics; welfare-oriented state model in Tamil Nadu
  • Opposition: critiqued Gandhian orthodoxy; promoted distinct Dravidian narrative

Ideological Tools

  • Rationalism: public debates, writings, atheistic pamphlets challenging scriptural authority
  • Symbols: Self-Respect conferences, public burning of caste markers, simplified marriage rituals
  • Identity: framed social justice within Dravidian versus Aryan discourse

Key Data Points

FeatureData-Point
FounderE.V. Ramasamy (Periyar)
Launch year1925
Centenary2025
Initial backerJustice Party
Later organisationDravidar Kazhagam
Key publicationKudi Arasu weekly
InfluencesIyothee Thass, Phule, Ambedkar
Signature practiceSelf-respect marriage sans priest
Women reformswidow remarriage, divorce, property, abortion rights
Core sloganEquality, rationalism, self-dignity

Related UPSC Prelims PYQs

GEO_GS, GS1 2021PYQ 1

The self-respect movement was started by:

GEO_GS, GS1 2025PYQ 2

Who among the following was the founder of the ‘Self-Respect Movement’?

GS-1Mapping

5.Sudan Country Profile (Country Mapping)

The Hindu

What & Where

Sudan — northeastern African nation, independent 1956, now under a military-led transitional government.

Straddles Africa–Arab world junction; capital Khartoum at White & Blue Nile confluence.

Darfur’s volcanic Marra Mountains (≈3 000 m) site of recent landslide flattening a mountain village.

Quick Facts for MCQs

Physical Geography

  • Marra Mountains volcanic; Nuba Mountains inselbergs; Red Sea Hills in northeast.
  • Northern belt vast desert, Qawz sand-dune fields; south-central clay plains (Gezira).
  • Fertile alluvial soils along Nile, stark contrast to sandy and rocky deserts.

Political Timeline

  • 1956: Freed from Anglo-Egyptian condominium rule.
  • 2011: South Sudan referendum halves national area.
  • Post-2019: Transitional Sovereign Council headed by Gen. al-Burhan.

Neighbourhood & Borders

  • North/East: Egypt, Red Sea, Eritrea, Ethiopia.
  • West/North-west: Chad, Libya, Central African Republic.
  • South: Longest land border shared with South Sudan.

Key Data Points

FeatureData-Point
Capital cityKhartoum
Independence year1956
Present leaderGen. Abdel Fattah al-Burhan
Highest highlandsMarra Mountains, Darfur
Peak elevation~3 000 m
Main river systemWhite Nile + Blue Nile
Pre-2011 statusAfrica’s largest country
Seceded nationSouth Sudan (2011)
Neighbour countEight countries
GS-3Environment

6.Debrigarh Tiger Reserve Upgrade (Tiger Reserve)

DH
Illustration for Debrigarh Tiger Reserve Upgrade (Tiger Reserve)

What & Where

Debrigarh: erstwhile wildlife sanctuary in western Odisha, NTCA-cleared as tiger reserve in 2025.

Geography: near Sambalpur; bounded by Hirakud Reservoir; forest-grassland-wetland “amphi-terrestrial” mosaic.

Vision: blend of tiger conservation, eco-tourism and community stewardship.

Quick Facts for MCQs

Biodiversity

  • Prey-base boosted; gaur herds show 40 % calves.
  • Supports leopard, wild dog, sambar, wild boar populations.
  • Wetland-forest edge enhances aquatic–terrestrial species exchange.

Community Involvement

  • 400 families relocated voluntarily with rehabilitation packages.
  • 155 villages supply guides, drivers, homestays; revenue-sharing model.
  • NTCA cites site as replicable participatory blueprint.

Tourism & Heritage

  • Offerings: stargazing platforms, kayaking, cycling, birding trails.
  • Bara Bakra cave linked to Veer Surendra Sai draws pilgrims.
  • Heritage-plus-wildlife narrative broadens visitor base.

Legal & Policy

  • Tiger-reserve label unlocks Project Tiger & CAMPA funds.
  • Zonation: core, buffer, eco-sensitive areas mandated.
  • Bolsters Eastern Ghats tiger landscape connectivity.

Key Data Points

FeatureData-Point
StateOdisha
Nearest citySambalpur
Total area≈ 804 sq km
Core zone≈ 347 sq km
Sanctuary notified1985
Tiger-reserve nod2025 (NTCA)
Bordering waterbodyHirakud Reservoir (Ramsar)
Ecosystem tagAmphi-terrestrial
Key mammalsIndian bison, chousingha, leopard
Bird diversity300 + species; 120 migratory
Dark-sky statusIndia’s 1st tourism hub
Safari fleet53 vehicles
Relocated families~ 400
Partner villages155

Related UPSC Prelims PYQs

GS1 2012PYQ 1

Consider the following protected areas:

GS-3SpeciesQuick Bite

7.Fireflies as Pollution Bioindicators (Bioluminescent Beetles)

Indian Express
Illustration for Fireflies as Pollution Bioindicators (Bioluminescent Beetles)

What & Where

Fireflies (Lampyridae): bioluminescent beetles; emit cold green–yellow light via luciferin-luciferase reaction.

Study in Anamalai Tiger Reserve (ATR), Tamil Nadu, documented eight species; flashing patterns act as ecosystem health gauges.

ATR: Western Ghats Tiger Reserve (2007) adjoining Parambikulam TR, Chinnar WLS, Eravikulam NP.

Quick Facts for MCQs

Ecology & Indicators

  • Bioluminescence functions in mate signalling and predator deterrence.
  • Synchronous flashing denotes pollution-free zones; population dips flag ecological stress.
  • Firefly decline cascades to moth, bat, amphibian food webs.

Threat Factors

  • Artificial lighting interferes with courtship flashes.
  • Pesticides and soil disturbance kill subterranean larvae.
  • Forest fragmentation from urban sprawl lowers humidity essential for adults.

Reserve Profile

  • ATR lies within Elephant Reserve-9, facilitating cross-border corridors with Kerala.
  • Shares boundaries with Parambikulam, Chinnar, Eravikulam; creates contiguous protected landscape.
  • Key fauna: tiger, Asian elephant, sambar, leopard, Nilgiri tahr.

Key Data Points

FeatureData-Point
Taxonomic orderColeoptera
Adult activity windowPost-rain; lifespan ≈ 2 months
Core chemicalsLuciferin, luciferase, ATP, O₂
Light colour rangeGreen → yellow
Habitat needsUndisturbed soil, humidity, clean water, low artificial light
Major threatsUrbanisation, deforestation, pesticides, light pollution
Ecological roleBioindicators of pristine habitats
ATR UNESCO sitesKariyan Shola, Grass Hills, Manjampatti
ATR vegetation typesEvergreen, deciduous, shola; montane & marshy grasslands
Tiger Reserve notified2007
GS-3S&T

8.Majorana Particles for Quantum Computing (Quantum Computing)

The Hindu
Illustration for Majorana Particles for Quantum Computing (Quantum Computing)

What & Where

Hypothetical fermion identical to its antiparticle termed Majorana particle

Location: Emerges as quasiparticle inside superconducting nanowires at milli-kelvin temperatures

Origin: Concept proposed 1937 by Ettore Majorana Italy

Quick Facts for MCQs

Particle Properties

  • Self-mirror nature eliminates distinct antimatter partner
  • Paired spatial halves create topological protection against local perturbations
  • Neutral charge limits electromagnetic detection methods

Quantum Computing

  • Modes act as topological qubits inherently robust to decoherence and noise
  • Braiding operations exploit non-Abelian statistics for fault-tolerant quantum gates
  • Potentially reduces heavy error-correction overhead in scalable quantum machines

Experimental Status

  • Nanowire–superconductor devices show zero-bias conductance peaks hinting Majorana modes
  • Andreev bound states can mimic signatures causing cautious data interpretation
  • Worldwide labs racing for unambiguous detection and controlled braiding demonstration

Key Data Points

FeatureData-Point
Proposed year1937
ProposerEttore Majorana
Electric chargeZero (neutral)
Particle categoryNon-Abelian anyon
Lab platformSuperconducting nanowires
Typical temperatureFew milli-kelvin
Qubit type enabledTopological qubit
Decoherence resistanceHigh via spatial separation
Antimatter counterpartSame particle itself
GS-3S&TQuick Bite

9.IgM Antibody Neutralization Mechanism (Immunology)

Business Standard
Illustration for IgM Antibody Neutralization Mechanism (Immunology)

What & Where

Immunoglobulin M (IgM): first, largest human antibody; pentameric glycoprotein in blood/lymph

Study focus: Protein L toxin from Finegoldia magna, skin–gut commensal turned opportunistic pathogen

Action zone: early-infection bloodstream, neutralizes toxins before deeper tissue spread

Quick Facts for MCQs

Mechanism

  • Brace effect: IgM crosslinks toxin domains, raising mechanical strength, blocking unfolding
  • Multivalency: five subunits enable simultaneous multi-epitope engagement absent in IgG/IgA
  • Dose-response: neutralization potency increases with circulating IgM levels

Therapeutic Potential

  • Antibiotic-resistance: IgM therapies may complement drugs against stubborn Gram-positive infections
  • Passive immunization: engineered IgM derivatives eyed as superior intravenous immunoglobulin formulations
  • Redefinition: positions antibodies as biomechanical modulators inspiring novel drug design pathways

Research Tools

  • Force spectroscopy: quantified unfolding forces of Protein L bound/unbound to IgM at single-molecule scale
  • Microbial focus: Finegoldia magna chosen for immune-evasive Protein L expression

Key Data Points

FeatureData-Point
Immunoglobulin classIgM
Size/weightLargest, ≈ 970 kDa pentamer
Appearance timingPrimary response (≈ day 3–5)
Producer cellsB-lymphocytes & plasma cells
Classical functionsNeutralization, complement trigger, agglutination
New discoveryToxin stiffening; no direct bactericidal action
Studied toxinProtein L (Finegoldia magna)
Research methodSingle-molecule force spectroscopy
Effect patternConcentration-dependent mechanical stabilization
Therapy promiseIgM-based adjuncts for drug-resistant infections
GS-2Scheme

10.Critical Mineral Recycling Scheme (Critical Minerals)

Business Standard

What & Where

Scheme: ₹1,500-crore incentive under National Critical Mineral Mission for recycling e-waste, Li-ion batteries, catalytic converters

Goal: Recover critical minerals and boost India-centric supply chains for clean energy, EVs, electronics

Geography: All-India rollout, administered by Ministry of Mines during FY 2025-26 → 2030-31

Quick Facts for MCQs

Tech & Schemes

  • Incentive mix covers new plants plus expansion, modernisation, diversification of existing recyclers
  • Feedstock focus spans urban-mined fractions: e-waste PCBs, spent EV batteries, auto catalytic converters
  • Subsidy split ensures early cash flow (Year-2) and performance-linked payout (Year-5)

Economic Angle

  • Capacity build: 270 kt recycling yields 40 kt minerals, lowering import dependence
  • Financial pull: ₹8,000 cr investment expected, stimulating ~70,000 green-job opportunities
  • Ceiling differentiation: Large vs small units incentivised with ₹60 cr vs ₹30 cr total possible support

Legal & Policy

  • Governance: Ministry of Mines implements under NCMM; distinct from E-waste (Management) Rules 2022
  • Equity push: 1/3rd corpus earmarked for startups and MSME recyclers
  • Transitional role: Scheme bridges supply gap until domestic exploration and mining mature

Key Data Points

FeatureData-Point
Total financial outlay₹1,500 crore
Mission umbrellaNational Critical Mineral Mission
Nodal ministryMines
Scheme duration6 years (2025-26 to 2030-31)
Eligible feedstockE-waste, Li-ion battery scrap, catalytic converters
Capital subsidy rate20 % on plant, machinery, utilities
OPEX subsidyLinked to incremental sales; 40 % in Year-2 + 60 % in Year-5
Max subsidy-large unit₹50 cr capex + ₹10 cr OPEX
Max subsidy-small unit₹25 cr capex + ₹5 cr OPEX
Outlay reserved for small/new unitsOne-third
Target recycling capacity270 kilo-ton per annum
Expected critical mineral yield~40 kilo-ton per annum
Anticipated private investment₹8,000 crore
Estimated jobs~70,000 (direct + indirect)

Related UPSC Prelims PYQs

GS1 2025PYQ 1

Consider the following statements:

GS-1Editorial

11.Gig and Platform Workforce Issues (Gig Economy)

The Hindu
Illustration for Gig and Platform Workforce Issues (Gig Economy)

What & Where

Definition: Gig economy is task-based paid work mediated by digital platforms outside classic employer-employee ties

Key types: Platform workers (Zomato, Ola); Non-platform casuals (freelance tutors, construction helpers)

Geography: India counts 1 crore gig workers (2024-25) projected 2.35 crore by 2029-30

Quick Facts for MCQs

Growth Drivers

  • Digitalisation: Cheap data and Digital India push widened worker-platform connectivity
  • Urban demand: Fast delivery, rides, support services spiked task volume
  • Demography: Youth preferring flexibility and surplus semi-skilled labour accepting gig roles

Challenges

  • Income: Low unpredictable pay with target pressure blurring flexibility
  • Protection: Workers labelled contractors lack minimum wage, leave, safety net
  • Algorithm: App ratings, auto-blocks, 24×7 tracking amplify stress and surveillance

Legal & Policy

  • Central: Code on Social Security defines gig, mandates National Social Security Board
  • Portal: e-Shram gives UAN enabling access to welfare schemes and databases
  • NITI: RAISE framework outlines funding, awareness, benefit access pathways

State Measures

  • Rajasthan: 2023 Act imposes platform welfare cess
  • Karnataka: Proposed 2024 Gig Workers’ Welfare Board
  • Telangana: Draft bill for registration and social security

Gender & Safety

  • Vulnerability: Women cleaners, beauticians face customer harassment and domestic violence risks
  • Tools: Need panic buttons, client verification, dedicated helplines within apps
  • Benefits: Maternity coverage under Social Security Code still largely unrealised

Key Data Points

FeatureData-Point
Projected size 2029-302.35 crore workers
Current size 2024-251 crore workers
Internet connections 2014→202425.15 crore → 96.96 crore
Smartphone ownership85.5 % households
e-Shram registrations (Aug 2025)3.37 lakh platform/gig workers
Core lawCode on Social Security 2020
NITI frameworkRAISE: Recognise, Augment, Incorporate, Support, Ensure

Related UPSC Prelims PYQs

CDS_GK, GS1 2025PYQ 1

निम्नलिखित में से कौन-सा, भारत में फ्लेक्सी कामगारों (flexi workers) को परिभाषित करता है?

CDS_GK, GS1 2021PYQ 2

भारत में नियमित अस्थायी मज़दूरों के संबंध में, निम्नलिखित कथनों पर विचार कीजिए :

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