Pratidin

UPSC current affairs, 1 September 2026

Tuesday. The 5 stories from The Hindu, The Indian Express and PIB that UPSC can ask about, and 20 more articles in brief, each with Prelims facts, a Mains angle and the previous-year questions on the topic.

Today's 5 stories

EconomyIndian Express, ExplainedGS3Must read

GDP grows 7.8% in April-June 2026, beating the RBI's 7% projection

The National Statistics Office (NSO) under the Ministry of Statistics and Programme Implementation (MoSPI) released on 31 August 2026 its estimate for the first quarter (April to June) of 2026-27. Real GDP, which strips out price changes, grew 7.8% to ₹81.36 lakh crore, from ₹75.46 lakh crore a year earlier. Growth in the same quarter of 2025-26 was 6.9% on the new series with base year 2022-23. Nominal GDP, measured at current prices, grew 10.3% to ₹88.27 lakh crore. Real Gross Value Added (GVA), the value of output before product taxes and subsidies, grew 8.2%. The number beat the Reserve Bank of India's projection of 7% for the quarter.

Prelims facts
  • Real GDP grew 7.8% in April to June 2026 (Q1 2026-27), against 6.9% in the same quarter of 2025-26 on the new 2022-23 base.
  • Nominal GDP grew 10.3% to ₹88.27 lakh crore, and real GVA grew 8.2%.
  • Manufacturing grew 9.2% and the tertiary sector 10%, while agriculture and allied activities slowed to 3.6%.
  • Real Gross Fixed Capital Formation grew 11.9%, and its share in nominal GDP rose to 34.3% from 31.4%.
  • Growth beat the RBI's 7% projection for the quarter; growth for 2025-26 was revised to 7.8%.

Read the full story, model answer and deep dive

International relationsThe Hindu, NationalGS2GS1Must read

Hague court says the Indus Waters Treaty is fully in force; India rejects the award

On 31 August 2026 the Court of Arbitration hearing Pakistan's case against India under the Indus Waters Treaty issued two decisions: an Award on Treaty Status and an Order on Interim Measures on the Ratle Hydro-Electric Plant. The court, chaired by Professor Sean D. Murphy, with the Permanent Court of Arbitration (PCA) at The Hague as its secretariat, held unanimously that India's April 2025 decision to hold the treaty 'in abeyance' was not justified, since neither the treaty nor customary international law permits unilateral suspension. It examined the legal grounds that could justify suspension (material breach, fundamental change of circumstances, armed conflict and countermeasures) and found that none applied, and declared that the treaty 'remains fully in force'.

Prelims facts
  • On 31 August 2026 the Court of Arbitration held unanimously that the Indus Waters Treaty remains fully in force and India's April 2025 abeyance was not justified.
  • The interim order bars India from concreting Ratle's dam wall and power intake above set levels until 90 days after the Neutral Expert's decision, expected around July 2027.
  • Ratle is an 850 MW run-of-the-river plant on the Chenab in Kishtwar, Jammu and Kashmir.
  • India called the court 'illegally constituted', has never taken part in it, and says the abeyance remains in force.
  • The Permanent Court of Arbitration in The Hague acts as secretariat for the court; it is not itself the tribunal.

Read the full story, model answer and deep dive

Environment and geographyThe Hindu, NationalGS1GS3Must read

India records its hottest August since 1901; IMD forecasts below-normal September rain

The India Meteorological Department (IMD) said on 31 August 2026 that August 2026 was India's warmest August since national records began in 1901. The all-India mean temperature was 28.01°C against a normal of 27.34°C, and the average minimum temperature of 24.36°C (normal 23.68°C) was also the highest for the month. Rainfall in August was 213.3 mm, 16.3% below normal and the seventh-lowest August total since 2001. The cumulative deficit of the south-west monsoon from 1 June to the end of August stood at about 14%.

Prelims facts
  • August 2026 was India's warmest August since 1901, with a mean temperature of 28.01°C against a normal of 27.34°C.
  • August rainfall was 213.3 mm, 16.3% below normal; the season deficit to end-August was about 14%.
  • IMD forecasts September 2026 rainfall below 91% of the LPA of 167.9 mm (1971-2020 base).
  • Strong El Niño conditions prevail and are expected to strengthen; the Indian Ocean Dipole is neutral.
  • Maximum and minimum temperatures in September are likely to be above normal over most parts of India.

Read the full story, model answer and deep dive

Polity and governanceThe Hindu, BusinessGS2GS3

Op-ed: Is the right to work fading under the new rural jobs law?

An op-ed in The Hindu, 'The broken promise of the right to work', argues that the constitutional aspiration of a right to work is being hollowed out under the Viksit Bharat Guarantee for Rozgar and Ajeevika Mission (Gramin) Act, 2025 (VB-G RAM G). The Act came into force on 1 July 2026 and repealed the Mahatma Gandhi National Rural Employment Guarantee Act (MGNREGA), 2005. The op-ed traces the right to the Constituent Assembly, where it was placed among the Directive Principles in Article 41, and point to a steep fall in work generated in July and August 2026, the first two months of the new law, compared with earlier years.

Prelims facts
  • The right to work is a Directive Principle under Article 41, not a fundamental right; Article 37 makes Directive Principles non-justiciable.
  • The VB-G RAM G Act, 2025 replaced MGNREGA on 1 July 2026 and promises 125 days of wage employment a year.
  • Costs are shared 60:40 between the Centre and most States (90:10 for north-eastern and Himalayan States), with normative allocations replacing demand-driven funding.
  • States may pause work for up to 60 days a year in peak sowing and harvesting seasons.
  • On 21 August 2026 the Supreme Court said the right to work is not a fundamental right and asked petitioners to challenge the new Act afresh.

Read the full story, model answer and deep dive

Society, justice and ethicsThe Hindu, LeadGS1GS2

Op-ed: Falling fertility, delimitation and the politics of population

A lead article in The Hindu, 'Political demography, the future of democracy', argues that demographic change should neither be ignored nor politically exploited. It notes that India's total fertility rate (TFR), the average number of children a woman would have at current birth rates, has fallen to 2.0 in the National Family Health Survey (NFHS-5, 2019-21), below the replacement level of about 2.1. The fall has been seen in every major religious community. NFHS data show Muslim fertility falling from 4.41 in 1992-93 to 2.36 in 2019-21, and Hindu fertility from 3.3 to 1.94. The article argues that fertility choices are shaped by factors such as housing costs, employment security, education, gender relations and childcare responsibilities, and that demographic change should be read through development indicators rather than as religious competition.

Prelims facts
  • India's total fertility rate was 2.0 in NFHS-5 (2019-21), below the replacement level of about 2.1.
  • Fertility has fallen in all major communities: Muslim TFR from 4.41 (1992-93) to 2.36, Hindu TFR from 3.3 to 1.94.
  • The 42nd Amendment (1976) froze inter-State seat allocation on the 1971 census; the 84th Amendment (2001) extended it until the first census after 2026.
  • Article 81 seeks the same ratio of Lok Sabha seats to population for all States, as far as practicable.
  • The op-ed argues pronatalist incentives abroad have not restored fertility and urges focus on ageing, migration and jobs.

Read the full story, model answer and deep dive

Every other article worth knowing

The Hindu

Over 6 crore names deleted in third phase of electoral roll revision

The Hindu, Page 1GS2Prelims

Over 6 crore names, 17.04% of the initial 36.08 crore, have been deleted from electoral rolls so far in the third phase of the Special Intensive Revision (SIR) across 16 States and three Union Territories. Delhi had the highest deletion share at 32.78% and Maharashtra the highest absolute deletions at 2.06 crore. The window for claims and objections opens on September 6.

Prelims facts
  • The SIR is authorised under Article 324 of the Constitution and Section 21(3) of the Representation of the People Act, 1950; the Registration of Electors Rules, 1960 provide the procedural framework.
  • The Supreme Court upheld the constitutional validity of the SIR process in March.
Mains angle

GS2 electoral integrity: large-scale deletions pose the trade-off between clean rolls and the risk of excluding eligible voters.

Asked before

2026 · GS2 · 10 marks Is the right to vote a fundamental right? Discuss the position of the Election Commission of India while undertaking the revision of electoral rolls. Can it also examine the question of citizenship of the voters?

How to use it: It shows the ECI's roll revision power in use: SIR under Article 324 and Section 21(3) of the RP Act, 1950, upheld by the Supreme Court, with over 6 crore deletions.

Source summary

Majuli and Tawang show community-led models for rural waste management

The Hindu, Page IIExplainedGS3Prelims

Majuli in Assam and Tawang in Arunachal Pradesh show community-led models for rural waste management. Majuli began moving waste across the Brahmaputra in April 2025 with the nonprofit Sahaas and set up Central Material Collection Facilities; Tawang began in 2024 through the Himalayan Fringes Project with monthly "Swachchata Divas" sorting events. In Tawang, monthly household and shop fees managed by local committees fund the work.

Prelims facts
  • India generates 1.7 lakh tonnes of waste daily, of which 17% is unaccounted for.
  • The Supreme Court directed institutionalisation of the Solid Waste Management Rules, 2016.
Mains angle

GS3 waste management: decentralised segregation and Material Recovery Facilities that earn from recyclables address rural data gaps, rising plastic use and high transport costs.

Source summary

Electrocution from power lines emerges as a new threat to India's vultures

The Hindu, Page 6EditorialGS3Prelims

The piece says India's vultures, whose population fell 99.5% by 2007 from an estimated 40 million in the 1980s because of the veterinary painkiller diclofenac, now face electrocution from expanding power infrastructure. Suggested fixes include insulating conductors, widening the gap between energised and grounded components, and installing safe perches. A 2024 American Economic Review study is cited linking vulture decline to a 4% rise in human mortality.

Prelims facts
  • Diclofenac caused kidney failure in vultures feeding on carcasses of treated cattle.
  • Aceclofenac and ketoprofen were banned in 2023.
  • White-rumped, Indian and slender-billed vultures are among the affected species.
Mains angle

GS3 conservation: the shift from drug toxicity to infrastructure hazards shows why power lines need wildlife-safe design, and the public health cost of losing scavengers.

Source summary

V-Dem index rates India at its lowest since 1975; UN CERD raises voter exclusion concerns

The Hindu, Page 7GS2Prelims

The V-Dem Institute's democracy index rates India at its lowest since 1975 and classifies it as "autocratising", citing declines in judicial accountability, Election Management Body autonomy and impartial public administration. Separately, the UN Committee on the Elimination of Racial Discrimination (CERD) raised concerns about law enforcement violations and voter exclusion, particularly of Muslims, during the Special Intensive Revision.

Prelims facts
  • The V-Dem Institute is based at the University of Gothenburg; its Electoral Democracy Index measures free and fair elections with comprehensive voting rights.
  • CERD's previous review of India was in 2007; it relates to the International Convention on the Elimination of All Forms of Racial Discrimination (ICERD).
Mains angle

GS2 democratic institutions: the index's findings on judicial and electoral body autonomy are an external assessment to weigh, with its methodology, in answers on institutional health.

Source summary

Government notifies Semicon 2.0 programme with Rs 1.27 lakh crore outlay

The Hindu, Page 8GS3Prelims

The government notified the Semicon 2.0 programme with an outlay of Rs 1.27 lakh crore, building on the Semicon India Programme approved in December 2021 with Rs 76,000 crore. It offers 40% fiscal support for silicon wafer fabs with a minimum investment of Rs 20,000 crore, 35% capex support for compound and display fabs and 30% for equipment and materials manufacturing. The India Semiconductor Mission is the nodal agency.

Prelims facts
  • Semicon 2.0 has six pillars: design, machines and materials, semiconductor and display fabs, ATMP/OSAT, research and development, and talent.
  • It aims to train 100,000 additional semiconductor engineers.
  • India's domestic semiconductor market is projected to reach $110 to 120 billion by 2030.
Mains angle

GS3 industrial policy: graded fiscal support across the value chain aims to build supply chain resilience and reduce import dependence.

Asked before

2025 · GS3 · 15 marks India aims to become a semiconductor manufacturing hub. What are the challenges faced by the semiconductor industry in India? Mention the salient features of the India Semiconductor Mission.

How to use it: It updates the Mission's features: Semicon 2.0 with Rs 1.27 lakh crore, 40% support for wafer fabs, six pillars, and a target of 100,000 more engineers to cut import dependence.

Source summary

Centre defers Census in Manipur amid demands for an updated NRC

The Hindu, Page 10GS2GS3Prelims

The Union government deferred Census operations in Manipur after a review meeting chaired by Home Minister Amit Shah, following demands from Meitei, Pangal and Naga groups for an updated National Register of Citizens first, with 1951 as the base year. The Manipur High Court had also ordered deferment of Census activities scheduled for September 1. The demands stem from concerns over undocumented migrants from Myanmar.

Prelims facts
  • Manipur shares a 398 km border with Myanmar.
  • The Free Movement Regime allowed border communities to travel up to 16 km into each other's territory without a visa.
  • Cross-border movement has increased since Myanmar's 2021 military coup.
Mains angle

GS2 and GS3: citizenship verification demands delaying the Census show how border migration concerns shape governance in the Northeast.

Asked before

2019 · GS3 · 15 marks Cross-border movement of insurgents is only one of the several security challenges facing the policing of the border in North-East India. Examine the various challenges currently emanating across the India-Myanmar…

How to use it: It adds current challenges: a 398 km Manipur-Myanmar border, the 16 km Free Movement Regime, movement since Myanmar's 2021 coup, and NRC demands delaying the Census.

Source summary

Bihar and Jharkhand sign pact to share Sone river waters

The Hindu, Page 12GS1GS2Prelims

Bihar and Jharkhand signed an MoU in Delhi, in the presence of Union Home Minister Amit Shah, ending a 25-year dispute over Sone river waters. Of the 7.75 MAF allocated to undivided Bihar under the 1973 Bansagar Agreement, Bihar gets 5.75 MAF and Jharkhand 2 MAF, under a formula based on Central Water Commission recommendations.

Prelims facts
  • The 1973 Bansagar Agreement allocated 7.75 MAF of Sone waters to undivided Bihar.
  • Jharkhand was formed from Bihar in 2000.
  • The dispute had held up major irrigation projects, including the proposed Indrapuri Reservoir on the Sone.
Mains angle

GS2 inter-state water disputes: a negotiated settlement with central facilitation is an example of cooperative federalism benefiting irrigation and drinking water supply.

Asked before

2016 · Essay · 125 Cooperative federalism: Myth or reality

How to use it: It offers a recent example: Bihar and Jharkhand settled a 25-year Sone waters dispute through an MoU signed in the Union Home Minister's presence, using Central Water Commission recommendations.

Source summary

Navy commissions INS Nipun, second Nistar-class diving support vessel

The Hindu, Page 12GS3Prelims

The Navy commissioned INS Nipun, the second Nistar-class Diving Support Vessel, at Naval Dockyard Mumbai. Built by Hindustan Shipyard Limited, Visakhapatnam, with over 80% indigenous content, it joins INS Nistar, commissioned in July 2025 and based in Visakhapatnam, and supports submarine rescue operations with Deep Submergence Rescue Vehicles.

Prelims facts
  • INS Nipun and INS Nistar are Nistar-class Diving Support Vessels built by Hindustan Shipyard Limited, Visakhapatnam.
  • Admiral Krishna Swaminathan assumed charge as the 27th Chief of Naval Staff on May 31, 2026.
Mains angle

GS3 defence indigenisation: a support vessel with over 80% indigenous content reflects Atmanirbhar Bharat in shipbuilding and adds submarine rescue capacity on both coasts.

Source summary

The Indian Express

Modi urges Putin to move towards an end to the Ukraine war at Bishkek meeting

Indian Express, Page 3GS2Prelims

At a meeting in Bishkek, Prime Minister Modi urged President Putin to move from "endless war" towards an end to the war in Ukraine. India said 51 Indian nationals had died serving in the Russian Army and 139 had been discharged. Putin confirmed he will attend the September BRICS Summit in New Delhi, and the Intergovernmental Commission reported progress on market access for Indian meat, marine and dairy exports.

Prelims facts
  • India-Russia bilateral trade grew 2.6% in the first half of 2026.
  • India and Russia describe their ties as a "Special and Privileged Strategic Partnership".
  • Nearly 40,000 Indian students study in Russia.
Mains angle

GS2 India-Russia relations: India pairs a call for peace in Ukraine with expanding trade and market access, an example of balancing a long partnership with its stated position on the war.

Source summary

ISRO to launch EOS-05 (GISAT-1A) on GSLV F17 on September 4

Indian Express, Page 9GS3Prelims

ISRO will launch EOS-05 (GISAT-1A) on September 4, 2026 aboard GSLV F17 from Sriharikota, ending a seven-month hiatus after the failed PSLV-C62/EOS-N1 mission in January. EOS-05 replaces GISAT-1 (EOS-03), which failed in 2021, and will be India's first imaging satellite in geosynchronous orbit, giving continuous observation for disaster management, agriculture and forestry.

Prelims facts
  • Geosynchronous orbit lies at about 35,786 km altitude; Low Earth Orbit spans 160 to 2,000 km.
  • EOS-05, also called GISAT-1A, replaces GISAT-1 (EOS-03), which failed in 2021.
  • The launch vehicle is the Geosynchronous Satellite Launch Vehicle (GSLV) F17.
Mains angle

GS3 space applications: continuous imaging from geosynchronous orbit supports disaster management, agriculture and forestry monitoring.

Source summary

X's pledge to publish takedown orders runs into India's IT blocking rules

Indian Express, Page 12ExplainedGS2Prelims

X announced on August 15 that government-mandated content removals would be made "clearly visible" to users, but MeitY responded on August 18 that X must comply with Indian law, including the confidentiality of Section 69A orders. Rule 16 of the IT (Blocking) Rules, 2009 requires secrecy around blocking requests issued under Section 69A of the IT Act, 2000. Takedown orders rose from roughly 6,000 a year through 2023 to about 24,300 in 2025.

Prelims facts
  • Section 69A of the IT Act, 2000 authorises government blocking orders; Rule 16 of the IT (Blocking) Rules, 2009 mandates their confidentiality.
  • Many takedowns now occur under Section 79(3)(b) of the IT Act, often routed through the Home Ministry's Sahyog portal, launched in October 2024.
  • The Karnataka High Court dismissed X's challenge to the Sahyog portal in September 2025.
Mains angle

GS2 transparency and free speech: confidential blocking orders, and a Sahyog route that bypasses Section 69A's procedural protections, raise questions of accountability in online content regulation.

Source summary

US-Iran exchange of strikes puts the Strait of Hormuz back at the centre

Indian Express, Page 12ExplainedGS2GS3Prelims

The US struck Iranian rocket launchers preparing to deploy sea mines and Iran hit back at American fighter jets in Jordan, their first military confrontation in over a month. US Treasury Secretary Scott Bessent announced an "economic D-Day" of sanctions on entities involved in illicit nuclear and missile technology procurement, cyber operations and oil-revenue generation. China, a major buyer of Iranian oil, threatened retaliation against secondary sanctions on its companies.

Prelims facts
  • The Strait of Hormuz handles about 20 to 25% of the world's seaborne oil and 20% of LNG trade annually.
  • Iranian President Masoud Pezeshkian backed the expired June 17 Memorandum of Understanding for a 60-day ceasefire.
Mains angle

GS2 and GS3: chokepoint risk in Hormuz and the reach of secondary sanctions feed answers on energy security and how great-power conflict affects oil markets.

Source summary

Road ministry proposes mandatory vehicle-to-vehicle communication to cut road deaths

Indian Express, Page 14ExplainedGS2GS3Prelims

The Ministry of Road Transport and Highways proposes mandatory Vehicle-to-Vehicle (V2V) communication under draft Central Motor Vehicles (Amendment) Rules, 2026, published on July 22. The system uses Cellular V2X in the 5.875 to 5.925 GHz band to warn drivers of sudden braking, unsafe lane changes and hazards beyond line of sight, over about 300 metres. India recorded 513,474 road accidents and 183,434 deaths in 2025.

Prelims facts
  • V2V systems are to follow Automotive Industry Standard-230 (AIS-230) and use license-exempt spectrum.
  • On-Board Units are estimated to cost Rs 5,000 to 7,000 per vehicle.
  • Unlike camera-based Advanced Driver Assistance Systems (ADAS), V2V can alert drivers to hazards beyond line of sight.
Mains angle

GS2 and GS3 road safety: V2V offers a technology response to high road deaths but raises privacy and cybersecurity concerns over stored vehicle data.

Source summary

Study maps 219 hanging glaciers in the Alaknanda basin as avalanche and flood hazards

Indian Express, Page 14ExplainedGS1GS3Prelims

A study in Nature identified 219 hanging glaciers in the Alaknanda basin of the Garhwal Himalayas that pose avalanche and flood hazards to nearby communities. It estimates 0.74 km³ of hanging ice within the basin's 2.39 km³ total ice volume and projects a 120% rise in buildings and a 17% rise in population at risk by 2030.

Prelims facts
  • Avalanche flows from hanging glacier break-offs could exceed 50 metres in height in Uttarakhand's Badrinath-Mana sector.
  • The 2021 Chamoli disaster is cited as a precedent for such hazards.
  • The study links the hazard to geometric and dynamic instability of glaciers driven by rapid warming.
Mains angle

GS3 disaster management: hanging-glacier instability under rapid warming shows why Himalayan hazard mapping should guide construction and settlement.

Asked before

2017 · GS3 · 15 marks 'Climate Change' is a global problem. How India will be affected by climate change? How Himalayan and coastal states of India will be affected by climate change?

How to use it: It gives a Himalayan example: 219 unstable hanging glaciers in the Alaknanda basin, with buildings at risk projected to rise 120% by 2030 as warming destabilises glaciers.

Source summary

Press Information Bureau

C-DOT unveils 14 indigenous quantum security products

PIBGovernment releaseGS3Prelims

The Centre for Development of Telematics (C-DOT) unveiled 14 indigenous quantum products at its 43rd Foundation Day in New Delhi. They cover Quantum Key Distribution (QKD) and Post-Quantum Cryptography (PQC) to secure India's communication networks against cybersecurity challenges posed by future quantum computers, for enterprise, telecom, strategic and defence users.

Prelims facts
  • C-DOT's 14 quantum products are based on Quantum Key Distribution (QKD) and Post-Quantum Cryptography (PQC).
  • The products incorporate the US National Institute of Standards and Technology (NIST) Post-Quantum Cryptography algorithms.
Mains angle

GS3 cyber security: indigenous quantum-safe encryption prepares critical communication networks for threats from future quantum computers.

Source summary

UPI payments enabled across Uzbekistan through its national QR network

PIBGovernment releaseGS2GS3Prelims

NPCI International Payments Ltd (NIPL) partnered with Uzbekistan's National Interbank Processing Centre (NIPC) on August 30, 2026, letting Indian travellers pay merchants in Uzbekistan by scanning UZQR codes with UPI apps. The RBI and the Central Bank of Uzbekistan approved the arrangement, and HUMO, Uzbekistan's national payment system, is NIPL's authorised partner for cross-border merchant acceptance.

Prelims facts
  • Uzbekistan is the eleventh country where UPI is accepted.
  • UZQR is Uzbekistan's Unified National QR infrastructure; HUMO is its national payment system.
Mains angle

GS2 and GS3: UPI's overseas expansion eliminates forex markup and reduces reliance on cash for Indian tourists, business travellers and students, extending India's payment system abroad.

Source summary

Vice-President releases ornamental fisheries plan at Agatti, Lakshadweep

PIBGovernment releaseGS3Prelims

The Vice-President released Mission Rangeen Machhli 2031, a Strategic Action Plan for Ornamental Fisheries Development, at a fisheries outreach programme in Agatti, Lakshadweep, on August 31, 2026. Projects worth over Rs 62 crore were approved for Lakshadweep under the Pradhan Mantri Matsya Sampada Yojana (PMMSY). The current annual harvest of 15,000 tonnes is far below an estimated potential of 1 lakh tonnes, including 94,000 tonnes of tuna.

Prelims facts
  • Lakshadweep accounts for nearly 17% of India's Exclusive Economic Zone, with an EEZ of 4 lakh sq km.
  • India's fish production rose from 95.7 lakh tonnes in 2013-14 to 197.75 lakh tonnes in 2024-25.
  • Seafood exports were Rs 73,890 crore in 2025-26.
Mains angle

GS3 blue economy: Lakshadweep's untapped tuna and ornamental fisheries potential shows how island EEZs can support livelihoods, including seaweed cultivation units for women.

Source summary

Scandium nitride breaks a century-old limit on turning heat into electricity

PIBGovernment releaseGS3Prelims

Researchers from JNCASR, IISc and the University of Sydney found that heavily doped, highly compensated scandium nitride (ScN) generates thermoelectric voltage nearly a thousand times larger than earlier limits in solids. Such voltages were previously seen only in liquid electrolytes and ionic gels. Uses include ultrasensitive temperature sensors, quantum sensing and low-noise thermal imaging.

Prelims facts
  • The Seebeck effect is the generation of an electrical voltage from a temperature difference across a material.
  • Scandium nitride showed a Seebeck coefficient beyond 124.6 millivolts per Kelvin in magnitude, against a few millivolts per Kelvin earlier in crystalline solids.
Mains angle

GS3 science and technology: the result shows Indian research contributing to sensing and quantum technologies, including IoT sensors and single-photon detection.

Source summary

MoSPI releases National Accounts Statistics 2026 with 2022-23 as base year

PIBGovernment releaseGS3Prelims

MoSPI released National Accounts Statistics 2026, adopting 2022-23 as the new base year for national accounts. New series of the Producer Price Index (PPI), Index of Industrial Production (IIP) and Banking Services Price Index (BkSPI), all with base 2022-23, have led to revised annual and quarterly GDP estimates from 2022-23. PPI replaces the Wholesale Price Index in several estimations.

Prelims facts
  • The new base year for national accounts estimates is 2022-23.
  • The publication includes Supply and Use Tables for 2022-23 and 2023-24.
  • The Banking Services Price Index (BkSPI) enables better measurement of the volume of banking services.
Mains angle

GS3 measurement of growth: the base-year revision and the move from WPI to PPI in estimation affect how real output is measured, which matters when judging growth figures.

Source summary

Progress of the National Mission on Interdisciplinary Cyber-Physical Systems

PIBGovernment releaseGS3Prelims

The National Mission on Interdisciplinary Cyber-Physical Systems (NM-ICPS), approved in 2018 with Rs 3,660 crore over nine years and implemented by the Department of Science and Technology, has set up 25 Technology Innovation Hubs and 4 Technology Translation Research Parks. As of August 2026 it has enabled 1,146 technologies, incubated 1,136 startups and trained over 2.46 lakh professionals.

Prelims facts
  • BharatGen, supported by NM-ICPS, develops sovereign AI for Indian languages, including the Param-2 foundation model supporting 22 Scheduled Indian languages.
  • The four Technology Translation Research Parks are at IIT Kanpur, IISc Bengaluru, IIT (ISM) Dhanbad and IIT Indore.
Mains angle

GS3 technology ecosystem: hub-based missions linking academia with startups show one model for building indigenous capability in AI, 5G-Advanced and cyber security.

Source summary