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14 topicsGS-1: 3GS-2: 4GS-3: 7
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GS-1History

1.Serengsia Battle 1837 Ho Resistance

Indian Express

What & Where

Serengsia battle 1837 : armed Ho tribal uprising against East India Company

Fought in narrow Serengsia valley, present West Singhbhum, Kolhan region, Jharkhand

Early organised Adivasi military resistance in eastern India

Quick Facts for MCQs

Causes

  • Autonomy loss through Kolhan Estate Govt, alien officials, sacred land intrusion
  • Economic burden via new taxes, land alienation, outsider settlement
  • Cultural suppression with Bengali language, non-tribal authority, coercive policing

Battle Dynamics

  • Terrain use of steep valley paths limiting British artillery
  • Obstacles like felled trees, burning dung-chilli smoke blinding troops
  • Coordinated arrow volleys from both ridges causing heavy British fatalities

Leaders & Fate

  • Leadership centred on Poto Ho, assisted by village headmen network
  • Capture completed 8 Dec 1837 after intensified British column sweeps
  • Public hangings at Jagannathpur, Mundasai intended as deterrence

Aftermath & Legacy

  • Collective fines, house burnings generated enduring resentment
  • Resistance cited in later colonial reports to justify separate Kolhan status 1850s
  • Modern commemoration by Jharkhand Govt as landmark Adivasi rebellion

Key Data Points

FeatureData-Point
Year1837
Tribe involvedHo (Kol)
Colonial opponentEast India Company
Core locationSerengsia valley, West Singhbhum
Wider regionKolhan (East & West Singhbhum, Seraikela-Kharsawan)
Principal leaderPoto Ho of Rajabasa
Other leadersBerai, Pandua, Badai, Nara, Devi, Sugni Ho
British casualties≈ 100 soldiers
Ho casualties≈ 26 fighters
Key tacticsGuerrilla, hill-slope ambush, bows-arrows, chilli-ash smoke
Immediate outcomeBritish initial retreat
Final British actionMass arrests, village burnings
Executions date1–2 Jan 1838
Imprisoned fighters≈ 79
Later significanceBasis for distinct Kolhan administrative status
GS-1Mapping

2.Armenia Geographic Profile

TI

What & Where

Armenia; landlocked South-Caucasus state at Europe–Asia crossroads

Sits on Armenian Highland; deeply dissected volcanic mountains ~1 800 m mean elevation

Borders Georgia, Azerbaijan (plus Nakhchivan exclave), Iran, Turkey

Quick Facts for MCQs

Topography & Soils

  • Mountainous; multiple parallel ranges, deep valleys, volcanic plateaus
  • Lava-derived soils; stony yet mineral rich aiding specific viticulture, orchard farming
  • Elevation variance drives sharp microclimates within short distances

Hydrology

  • Lake Sevan; irrigation, hydropower, regional climate stabiliser
  • Fast-flowing alpine streams feed Aras & Kura river systems
  • Limited groundwater; snowmelt crucial for summer agriculture

Seismic Risk

  • Location on active Alpine–Himalayan belt; frequent moderate quakes
  • 1988 Spitak event M 6.8 killed ~25,000, spurred stricter construction codes
  • Ongoing monitoring by Armenian NSSP seismic net

Geopolitical Context

  • Sits between Russia, Iran, Turkey; strategic energy transit potential
  • Protracted Nagorno-Karabakh dispute with Azerbaijan shapes defence posture
  • Recent India–Armenia defence engagement signals diversification beyond Russian reliance

Key Data Points

FeatureData-Point
CapitalYerevan
Region tagSouth Caucasus / Transcaucasia
Number of land neighboursFour
Exclave contactNakhchivan (Azerbaijan) SW border
Signature lakeSevan; high-alt freshwater
Average elevation≈1 800 m
Dominant rangesLesser Caucasus chains (Bazum, Pambak, Vardenis)
Climate typeContinental; hot dry summers, cold winters
Geologic natureVolcanic highland; mineral-rich soils
Major quake1988 Spitak earthquake
GS-2Polity

4.Frontier Nagaland Territorial Authority Agreement

PIB
Illustration for Frontier Nagaland Territorial Authority Agreement

What & Where

Frontier Nagaland Territorial Authority (FNTA) autonomous governance structure within Nagaland

Formed through 2024 tripartite agreement among Centre, Nagaland government, ENPO

Jurisdiction over six eastern districts — Tuensang, Mon, Kiphire, Longleng, Noklak, Shamator

Quick Facts for MCQs

Legal & Policy

  • Article 371A retained preserving Naga customary laws and resources
  • Autonomy granted without altering state boundaries or demanding separate statehood
  • Settlement culmination of sustained consultations among ENPO, state, Centre

Fiscal Provisions

  • Development outlay shared proportionally by population and area of six districts
  • Fixed annual grant from Centre ensures predictable budgeting
  • MHA funds all initial establishment expenses of FNTA

Administrative Setup

  • Mini-Secretariat located in region for on-site governance
  • Authority led by Additional Chief Secretary or Principal Secretary rank officer
  • Control transferred over 46 subjects covering welfare, infrastructure, local development

Key Data Points

FeatureData-Point
Agreement typeTripartite Memorandum of Settlement
Signing partiesGoI, Govt of Nagaland, ENPO
Apex tribal bodyEastern Nagaland People’s Organisation
Constitutional safeguardArticle 371A retained
Districts covered6 eastern Nagaland districts
Subjects devolved46 administrative & developmental
Secretariat headAdditional Chief Secretary/Principal Secretary
Initial funding agencyUnion Ministry of Home Affairs
Annual fundingFixed Central allocation
Dialogue period2021–22 onward
GS-2Polity

5.Jhodia Tribe Status and Soura Language Inclusion

PIB

What & Where

Jhodia (Jhodia Paraja) tribe inhabits Koraput, Rayagada & Kalahandi districts, once treated as Paroja synonym with ST benefits.

Soura/Saora language of Austroasiatic-Munda family; written in Sorang Sompeng script created 1936 by Mangei Gomango.

Odisha seeks ST listing for Jhodia and Eighth-Schedule status for Soura; ORGI has returned both proposals.

Quick Facts for MCQs

Legal & Policy

  • ORGI objection returned Odisha proposal; final ST inclusion needs Presidential order under Article 342.
  • Eighth-Schedule addition lacks statutory timeline; Pahwa 1996 & Sitakant Mohapatra 2003 reports inconclusive.
  • Jhodia lost statutory benefits post-1997 when synonym tag with Paroja was withdrawn.

Social Concerns

  • Jhodia settlements geographically isolated, hilly interiors, poor road and health access.
  • Livelihoods mainly subsistence agriculture, shifting cultivation, minor forest produce sale.
  • Education indicators low; exclusion from ST list restricts scholarship and hostel eligibility.

Language & Script

  • Sorang Sompeng uses 22 basic letters representing syllables, taught in community schools.
  • Script bears ritual relevance for Saora bards writing divination texts.
  • Lack of Eighth-Schedule status limits publication grants, digital standardisation, official examinations.

Key Data Points

FeatureData-Point
Tribe locationKoraput, Rayagada, Kalahandi (Odisha)
Previous recognitionSynonym of Paroja ST till 1997
Language familyAustroasiatic (Munda branch)
Script name & yearSorang Sompeng, 1936
Key committeesPahwa 1996; Sitakant Mohapatra 2003
Approving authorityOffice of Registrar General of India
GS-2Economy

6.India–GCC Free Trade Talks Framework

PIB
Illustration for India–GCC Free Trade Talks Framework

What & Where

ToR: framework guiding India-GCC comprehensive FTA negotiations

FTA: targets tariff cuts for goods, services, investment facilitation

GCC: six-nation Arab bloc along Persian Gulf; secretariat in Riyadh

Quick Facts for MCQs

Economic Angle

  • Investment: FTA expected to ease capital flows and spur job creation in India
  • Growth: Region already fastest-rising partner; FTA aims to exceed 15 percent yearly trade expansion
  • Market: Access to high-income USD 2.3 trillion economy

Trade Composition

  • Exports: Engineering goods, rice, textiles, machinery, gems & jewellery dominate outbound basket
  • Imports: Crude oil, LNG, petrochemicals, gold form bulk of inward shipments
  • Balance: India runs trade deficit of ~USD 64.8 billion in FY 2024-25

Security Dimension

  • Energy: Agreement critical for assured crude and LNG supply to India
  • Food: Smooth trade lanes to bolster staple availability for Gulf states
  • Geo-routes: Persian Gulf chokepoint vital for global shipping and India’s sea-lanes

Key Data Points

FeatureData-Point
FY 2024-25 bilateral tradeUSD 178.56 billion
Share in India’s global trade15.42 %
Indian exports valueUSD 56.87 billion
Indian imports valueUSD 121.68 billion
Five-year average trade growth15.3 percent per annum
Cumulative GCC FDI into IndiaUSD 31.14 billion (Sept 2025)
Indian diaspora in GCC~10 million persons
GCC combined population~61.5 million
GCC GDP size~USD 2.3 trillion (9th globally)
GCC establishment year1981

Related UPSC Prelims PYQs

CDS_GK, GS1 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, GS1 2017PYQ 2

भारत द्वारा चाबहार बंदरगाह विकसित करने का क्या महत्त्व है ?

GS-2Security

7.Expiry of New START Nuclear Treaty

The Hindu

What & Where

Treaty: New Strategic Arms Reduction Treaty (New START); bilateral U.S.–Russia accord capping strategic nuclear arsenals.

Geography: applies to deployed ICBMs, SLBMs and heavy bombers on both nations’ territories worldwide.

Scope: establishes verifiable ceilings on launchers (700 deployed) and warheads (1,550), with on-site inspections and data exchange.

Quick Facts for MCQs

Timeline

  • 1991 START I signed; 1994 entry, first legally binding caps since 1972.
  • 2010 New START replaces SORT; 2021 extension grants final 5-year life.
  • 2023 Moscow halts participation; 2026 lapse ends all bilateral limits.

Arms Limits

  • Warheads: 1,550 includes re-entry vehicles on ICBM/SLBM and counted bomber weapons.
  • Delivery vehicles: 700 deployed, 800 total launchers ensure reciprocal transparency.
  • Verification: 18 annual on-site inspections each side; 2,000+ notifications exchanged yearly pre-2023.

Friction Points

  • Missile-defence: U.S. interceptors viewed by Moscow as undermining deterrence.
  • Hypersonics: Russian Avangard, Kinzhal excluded from treaty, raising U.S. concerns.
  • Data freeze: suspension ended inspections, telemetry sharing, raising miscalculation risk.

Global Implications

  • Arms race: first absence of legal ceilings since 1972 may spur quantitative buildup.
  • Multilateral challenge: expiry complicates bringing China, France, U.K. into future regimes.
  • Non-proliferation hit: weakened credibility of NPT, CTBT, TPNW efforts.

Related Treaties

  • NPT 1968: prohibits spread, commits NWS to disarmament, enables peaceful nuclear tech.
  • CTBT 1996: bans all test explosions; pending entry into force.
  • TPNW 2017: first legal prohibition on possession, use, transfer of nuclear weapons.

Key Data Points

FeatureData-Point
Signing year2010
Entry into force2011
Last extensionFeb 2021–Feb 2026
Russian suspensionFeb 2023
Legal expiry5 Feb 2026
Deployed warhead ceiling1,550
Deployed ICBM/SLBM/bomber ceiling700
Deployed + non-deployed launcher ceiling800
U.S.–Russia share of global warheads~87 %
Verification toolsOn-site inspections, telemetry exchange

Related UPSC Prelims PYQs

GS1 2011PYQ 1

The “New START” treaty was in the news. What is this treaty?

GS-3Infrastructure

8.Kavach 4.0 Automatic Train Protection Rollout

PIB
Illustration for Kavach 4.0 Automatic Train Protection Rollout

What & Where

Kavach 4.0 = latest indigenous Automatic Train Protection (ATP) / Train Collision Avoidance System for Indian Railways

Record 472.3 route km commissioned in one day on Western, Northern, East Central Railways

Total coverage now 1,306.3 route km across five railway zones in high-density corridors

Quick Facts for MCQs

Tech & Schemes

  • Integration Seamless with existing signalling and electronic interlocking
  • Response Faster processing for real-time speed and location monitoring
  • Indigenisation Developed by RDSO with Indian industry partners, cuts import dependence

Infrastructure Rollout

  • Pace Monthly commissioning record also broken in Feb 2026 alongside daily record
  • Focus corridors High-density passenger & freight routes prioritised for first-phase deployment
  • Scale Target pan-India rollout in phased manner under Railway Board directives

Safety Dimension

  • Collision avoidance Automatic braking averts head-on, rear-end, and side collisions
  • Visibility aid System functional in fog and adverse weather, boosting winter punctuality
  • Loco-pilot support Continuous cab signals and audio-visual alerts reduce human error

Key Data Points

FeatureData-Point
Year of inception2012 as TCAS, later renamed Kavach
Present version4.0 (most advanced)
Single-day rollout record472.3 route km (Feb 2026)
Cumulative rollout1,306.3 route km
Current zones covered5 (incl. Western, Northern, East Central)
Core functionsPrevent SPAD, control overspeed, auto-brake, wrong-direction alert
Safety certificationSIL-4 (highest)
Approving bodyRDSO
Key techMicroprocessors, GPS, UHF radio
SuitabilityHigh-density, multi-line Indian network

Related UPSC Prelims PYQs

CAPF_GAI, GS1 2025PYQ 1

निम्नलिखित कथनों पर विचार कीजिए :

CAPF_GAI, GS1 2023PYQ 2

कवच-2023 (KAVACH-2023) के बारे में निम्नलिखित कथनों में से कौन-सा/कौन-से सही है/हैं?

GS-3S&T

9.International Space Station Deorbit Plan

Economic Times
Illustration for International Space Station Deorbit Plan

What & Where

International Space Station: permanently crewed, modular laboratory in low Earth orbit for microgravity science and tech testing

Assembly began 1998; uninterrupted human habitation since Nov 2000, longest continuous presence in space

Jointly operated by NASA, Roscosmos, ESA, JAXA, CSA with interdependent hardware contributions

Quick Facts for MCQs

Modular Architecture

  • Sequentially assembled modules from all partners since 1998
  • Integrated power, life-support, robotics sustain permanent lab operations
  • Design allows in-orbit upgrades without Earth return

Partnership Governance

  • Each agency operates its own hardware yet relies on others’ systems
  • Resources shared through coordinated, interdependent operations framework
  • Symbolises peaceful collaboration despite shifting geopolitics

End-of-Life Plan

  • Partner funding extended station use until 2030
  • U.S. Deorbit Vehicle will lower orbit for controlled descent
  • Re-entry targeted over remote ocean to minimise debris risks

Research Significance

  • Experiments advanced understanding of human physiology in microgravity
  • Materials and Earth-observation studies generated tech and climate applications
  • Operational lessons underpin future deep-space exploration missions

Key Data Points

FeatureData-Point
Orbit typeLow Earth orbit
First module launchZarya, 20 Nov 1998
Assembly began1998
Continuous habitationFrom Nov 2000 (Expedition 1)
Partner agenciesNASA, Roscosmos, ESA, JAXA, CSA
Total agencies5
Planned deorbit year2030
Disposal methodControlled re-entry via U.S. Deorbit Vehicle
Splashdown zoneRemote ocean area
Core missionMicrogravity science & human spaceflight studies
GS-3S&T

10.Sodium-Ion Battery Technology

The Hindu

What & Where

Definition Rechargeable rocking chair battery employing Na⁺ ions between cathode–anode instead of Li⁺

Process During charge Na⁺ leaves cathode, inserts into anode; reverse during discharge with external electron flow

Geography India exploring SiBs for domestic manufacturing, grid storage and two-wheeler EV markets

Quick Facts for MCQs

Tech & Processes

  • Compatibility Can reuse Li-ion coating, calendaring, slitting equipment with electrolyte and drying tweaks
  • Moisture Sensitivity Requires stricter vacuum and low-humidity assembly to protect sodium electrode materials
  • Transport Advantage Cells safe when fully discharged, easing logistics regulations

Economic Angle

  • Material Abundance Sodium and aluminium plentiful, minimising price volatility tied to lithium, cobalt, nickel markets
  • Cost Trajectory Expected long-term per-kWh cost below Li-ion owing to cheaper inputs and logistics
  • Collector Saving Eliminates copper foil on anode, lowering BOM and import dependence

Security Dimension

  • Import Risk Reduction Diversifies away from lithium-dominated supply chains, enhancing strategic autonomy
  • Grid Stability Supports large-scale renewable integration through affordable stationary storage buffers
  • Strategic Fit Aligns with Atmanirbhar Bharat and Energy Storage Mission targets

Key Data Points

FeatureData-Point
Charge carrierSodium ion (Na⁺)
Current collector metalAluminium on both electrodes
Key raw materialsSoda ash, common salt
Energy densityLower than high-performance Li-ion
Safety profileLow thermal runaway, ship at 0 % SOC
Manufacturing lineAdaptable from existing Li-ion with minor tweaks
Major application focusStationary storage, 2–3-wheelers, short-range EVs
GS-3S&T

11.India AI Stack for Scalable Deployment

PIB
Illustration for India AI Stack for Scalable Deployment

What & Where

IndiaAI Stack: 5-layer digital framework to democratise AI and deliver population-scale services across sectors.

Key processes: Application → AI Model → Compute → Data-centres & Network → Energy; integrated for build, deploy, scale.

Geography: Pan-India optical-fibre & 5G; data-centre hubs Mumbai-Bengaluru-Hyderabad; domestic semiconductor and power ecosystem.

Quick Facts for MCQs

Tech & Schemes

  • Layers: Five-tier architecture enables end-to-end AI pipeline from data to user application.
  • Compute: Portal offers subsidised GPUs/TPUs; supercomputers and GPU clusters boost training power.
  • Language: Sovereign models target Indian languages and public-service datasets.

Economic & Sovereignty

  • Dependence: Stack lowers reliance on foreign models and cloud compute.
  • Semiconductors: Domestic fabs strengthen supply chain and create high-skill jobs.
  • Affordability: Shared infrastructure cuts deployment cost for startups and states.

Environmental Sustainability

  • Renewables: >51 % installed power from non-fossil sources supports green AI compute.
  • Storage: Battery and pumped-storage projects stabilise load from AI data centres.
  • Alignment: Framework embeds sustainability as core design principle.

Key Data Points

FeatureData-Point
Total layers5 interlinked tiers
Application examplesHealth diagnostics, farm advisories, e-Courts, weather forecasts
Core model initiativesIndiaAI Mission, BharatGen, Bhashini, IndiaAI Kosh
Compute facilitationSubsidised GPU/TPU via IndiaAI Compute Portal + national clusters
Data-centre hubsMumbai, Bengaluru, Hyderabad
Network backboneNationwide optical fibre; near-universal 5G
Energy capacity500 + GW installed; >51 % non-fossil sources
Green supportBattery & pumped-storage projects, nuclear backup
Domestic chip pushGrowing semiconductor ecosystem
Guiding purposeInclusive, sovereign, affordable “AI for Humanity”

Related UPSC Prelims PYQs

ESE_GS, GS1 2025PYQ 1

ग्रैण्ड पैलै (Grand Palais) पेरिस में नवम्बर 2025 में आयोजित होने वाले AI शिखर सम्मेलन के सन्दर्भ में, निम्नलिखित कथनों पर विचार कीजिए :

ESE_GS, GS1 2026PYQ 2

What is the name of the national digital framework launched at India Maritime Week 2025 to make Indian ports data-driven and AI-enabled?

GS-3Environment

12.Meghalaya Illegal Rat-Hole Mining Crisis

NDTV
Illustration for Meghalaya Illegal Rat-Hole Mining Crisis

What & Where

Rat-hole mining: 3–4 ft tunnels or vertical pits for low-ash coal, concentrated in Meghalaya’s East Jaintia Hills

Activity banned by NGT 2014 and upheld by Supreme Court, yet 30,000+ illegal pits operate in 2026

Labour is mostly migrant workers from Assam and Nepal in remote, forested terrain

Quick Facts for MCQs

Environmental Impact

  • Acidification: Kopili River turned blue-orange, pH 2–3, aquatic life wiped out
  • Subsidence: Jharia 2025 land sinking and house collapses from abandoned-mine scavenging
  • Deforestation: 30,000 rat-holes carved into biodiverse hill slopes

Economic Angle

  • Revenue loss: ₹784 cr flagged by CAG UP 2025 from untaxed extraction
  • Output value: 6 Mt low-ash coal keeps illegal trade lucrative despite ban
  • Livelihood pull: ₹1,500–₹2,000 daily wage triples farm income, sustaining local support

Legal & Policy

  • Prohibitions: NGT 2014 ban and Supreme Court uphold yet enforcement weak
  • Draft MMDR Amendment 2026 seeks harsher penalties, labels certain violations security threats
  • Justice Katakey Committee 2025 recorded executive inaction on repeated illegality reports

Technology & Enforcement

  • MSS satellites: 87 % alerts unverified, Meghalaya saw zero prosecutions in 2025
  • Terrain challenge: Dense forests block drone access, delay NDRF response hours after 2026 blast
  • Proposal: 48-hour compulsory police action on MSS alerts with departmental inquiry for lapses

Key Data Points

FeatureData-Point
Year of NGT ban2014
Estimated illegal pits30,000 +
Annual illicit output≈ 6 million t
Tunnel height3–4 ft
Recent blast deaths18 workers (2026)
Miner wage₹1,500–₹2,000 day
MSS alerts ignored87 % (Meghalaya, Jharkhand, Chhattisgarh)
Meghalaya MSS 2025 prosecutions0 of 56 triggers
Kopili River pH2–3 acidic
CAG UP 2025 loss₹784 crore
Wage vs agriculture≈ 3 × higher
GS-3Security

13.National Disaster Victim Identification Guidelines

Indian Express

What & Where

Disaster Victim Identification (DVI): scientific, systematic process to name deceased in mass-fatality events.

India’s first national DVI Guidelines & SOPs issued by NDMA; technical draft by National Forensic Sciences University.

Applicable nationwide across air crashes, earthquakes, floods, fires, industrial accidents, terror attacks.

Quick Facts for MCQs

Legal & Policy

  • Uniformity: guidelines establish single national protocol for mass-fatality management across all states.
  • Certification: streamlines legal death certificates, compensation and inheritance workflows.
  • Alignment: follows Interpol standards, easing international cooperation and evidence admissibility.

Forensic Technology

  • Digital: mandates mobile biometrics, virtual autopsy, forensic anthropology, archaeology for fragmented or buried remains.
  • Registry: proposes National Dental Data Registry enabling rapid ante/post-mortem comparison.
  • Evidence: secondary identifiers admissible only as corroborative, never sole proof.

Humanitarian & Social

  • Dignity: prescribes respectful tagging, preservation and handover of remains to families.
  • Family: timely identification offers psychological closure, curbs rumours and unrest.
  • Training: stresses capacity building for police, medical and forensic responders.

Disaster Risk Context

  • Hazards: covers natural, industrial, CBRN, terror-related mass fatalities.
  • Climate: recognises rising frequency of floods, landslides, heat-linked fires.
  • Terrain: addresses retrieval challenges in high-altitude, submerged and densely built areas.

Key Data Points

FeatureData-Point
Nodal authorityNational Disaster Management Authority (NDMA)
Technical partnerNational Forensic Sciences University (NFSU)
Global alignmentInterpol DVI framework
DVI stagesScene → Post-mortem → Ante-mortem → Reconciliation
Primary identifiersFingerprints, Dental records, DNA profiling
Secondary identifiersTattoos, scars, ornaments (support only)
Command headOperational DVI Incident Commander
Suggested databaseNational Dental Data Registry
Digital toolsMobile-phone biometrics, virtual autopsy, 3-D imaging
Climate noteClimate change tagged as “risk multiplier”
GS-3S&TQuick Bite

14.Sunlight-Powered Photo-Capacitor Energy Device

DD News

What & Where

Photo-capacitor integrates solar energy capture and storage in one device

Uses binder-free NiCo₂O₄ nanowires grown on nickel foam via hydrothermal process

Developed at Centre for Nano and Soft Matter Sciences (CeNS), Bengaluru, DST

Quick Facts for MCQs

Technology

  • Binder-free nanowire network offers high surface area and intrinsic conductivity
  • Porous 3D architecture maximises photon absorption and ion diffusion simultaneously
  • Integrated design lowers system size, wiring complexity, and conversion losses

Performance Metrics

  • Enhanced capacitance recorded under daylight compared to dark conditions
  • Stable output maintained across varying light intensities and operating environments
  • Long-term durability confirmed through repeated cycling without significant fade

Applications

  • Enables compact self-charging power packs for IoT sensors and medical wearables
  • Suitable for remote or off-grid energy solutions where battery replacement is impractical
  • Can pair with flexible substrates for next-gen lightweight electronics

Key Data Points

FeatureData-Point
Innovation typePhoto-capacitor
Core materialNickel–cobalt oxide (NiCo₂O₄) nanowires
SubstrateNickel foam
Fabrication methodSimple hydrothermal growth
Lead institutionCeNS, Bengaluru
Parent ministryDepartment of Science & Technology
Key advantageCombines harvesting + storage inside single unit
Sunlight effectCapacitance increases under illumination
Cycle lifeDurable over thousands of charge–discharge cycles
Potential usersPortable electronics, wearables, off-grid setups

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