💥UPSC 2027,2028 Mentorship (April Batch) + Access XFactor Notes & Microthemes PDF

Type: Prelims Only

  • Nobel and other Prizes

    Nobel Prize in Economic Sciences, 2025

    Why in the News?

    The 2025 Nobel Prize in Economic Sciences (Sveriges Riksbank Prize in Memory of Alfred Nobel) was awarded to Joel Mokyr (Northwestern University, US), Philippe Aghion (Collège de France, INSEAD, LSE), and Peter Howitt (Brown University, US) for their pioneering explanations of innovation-driven economic growth.

    What is the Nobel Economics Prize?  

    • Officially called the Bank of Sweden Prize in Economic Sciences in Memory of Alfred Nobel, established in 1968.
    • It is NOT part of the original Nobel Prizes created by Alfred Nobel in 1895.
    • Created by the Swedish central bank to honor Alfred Nobel’s legacy.
    • Although not an original Nobel Prize, it is presented alongside the other Nobel Prizes on December 10, the anniversary of Nobel’s death.
    • Includes a diploma, gold medal, and a one-million-dollar prize for the laureates.

    Who are the Nobel Laureates for 2025?

    • Joel Mokyr (Northwestern University, USA): An economic historian, renowned for studying how scientific knowledge, cultural openness, and institutional change during the Enlightenment triggered the Industrial Revolution.
    • Philippe Aghion (Collège de France, INSEAD, LSE): A leading growth theorist, known for advancing the Schumpeterian model of innovation-driven growth and the economics of creative destruction.
    • Peter Howitt (Brown University, USA): Collaborator of Aghion, co-developer of the Aghion–Howitt growth model, integrating firm-level innovation dynamics into macroeconomic theory.

    Their Contributions:

    1. Joel Mokyr:
      • Demonstrated that before the 18th century, societies possessed “prescriptive knowledge” (how things worked) but lacked “propositional knowledge” (why they worked).
      • Showed that the Scientific Revolution merged science with craftsmanship, turning discovery into applied innovation.
      • Highlighted that the Enlightenment’s intellectual openness enabled acceptance of “creative destruction,” allowing new technologies to replace old ones without institutional backlash.
    2. Philippe Aghion & Peter Howitt:
      • Developed the 1992 Schumpeterian Growth Model, mathematically linking innovation, competition, and economic growth.
      • Explained that constant firm turnover—where new innovators replace old incumbents—creates long-term, stable growth.
      • Introduced the idea of “general equilibrium in innovation”, connecting household savings, financial markets, R&D investment, and production into a single dynamic framework.
  • Differentiated Banks – Payment Banks, Small Finance Banks, etc.

    RBI introduces Unified Markets Interface (UMI)

    Why in the News?

    RBI Governor has unveiled the Unified Markets Interface (UMI) a next-generation financial market infrastructure developed by the Reserve Bank of India (RBI).

    What is Unified Markets Interface (UMI)?

    • Overview: The UMI is a next-generation financial market infrastructure conceptualized by the Reserve Bank of India (RBI) to tokenize financial assets and settlements using the wholesale Central Bank Digital Currency (CBDC).
    • Purpose: It aims to modernize India’s financial markets by enabling blockchain-based asset transactions, improving market transparency, and streamlining settlements through digital automation.
    • Significance: The UMI represents India’s entry into asset tokenization, the conversion of real-world financial instruments into digital tokens, thereby integrating CBDC, smart contracts, and digital public infrastructure within a single interoperable ecosystem.

    Features of UMI:

    • CBDC-Enabled Settlement: Uses the wholesale Central Bank Digital Currency (CBDC) to execute high-value settlements instantly and securely.
    • Asset Tokenization: Converts traditional financial assets into digital tokens on blockchain, allowing fractional ownership and seamless transferability.
    • Unified Infrastructure: Creates an integrated, interoperable market interface linking banks, investors, and financial intermediaries on a single digital framework.
    • Smart Contract Automation: Employs programmable contracts for real-time clearing, settlement, and compliance, reducing manual intervention.
    • Transparency and Efficiency: Blockchain ensures immutable transaction records and enhances traceability, reducing fraud and settlement delays.

    Back2Basics: Asset Tokenization

    • Definition: The process of converting real-world assets, such as bonds, real estate, commodities, or equities, into digital tokens stored on blockchain networks.
    • Mechanism: Each token represents fractional ownership, enabling smaller investors to participate in high-value assets traditionally limited to institutions.
    • Technology Base: Built on blockchain and smart contracts, ensuring transparent, secure, and automated transactions.
    • RBI’s Application: Tokenized financial assets under UMI will settle through wholesale CBDC, providing real-time, tamper-proof, and traceable transactions.
  • Innovation Ecosystem in India

    Anna Mani and her contributions in India’s Atmospheric Research

    Anna Mani and her contributions in India’s Atmospheric Research

    Why in the News?

    The National Book Trust has released a book on highlighting physicist Anna Mani’s pioneering ozone and pollution studies in Pune decades before “climate change” entered discourse.

    Who was Anna Mani (1918–2001)?

    • Overview: Indian physicist and meteorologist from Peermade, Kerala; pioneered India’s meteorological instrumentation and atmospheric science.
    • Alma mater: Studied physics at Presidency College, Chennai (1939); trained at Imperial College, London; joined IISc Bengaluru under C.V. Raman, publishing five crystallography papers.
    • Professional Career: Joined the India Meteorological Department (IMD) in 1948; later headed its Instruments Division; earned the title “Weather Woman of India.”

    Key Contributions:

    • Meteorological Instrumentation: Designed and standardized 100+ weather instruments, including India’s first pyranometers and sunshine recorders, ending dependence on imports. Established the Regional Instrumentation Centre, Pune, for nationwide calibration.
    • Measurement Infrastructure: Created a national network of solar, wind, and radiation observatories; introduced WMO-grade calibration; data later used for India’s first Wind Energy Atlas.
    • Ozone & Atmospheric Research: In 1964, developed India’s first ozonesonde balloon measuring ozone up to 35 km; integrated into the WMO Global Ozone Mapping Programme. Her studies on ground-level ozone and urban aerosols anticipated modern air-pollution science.
    • Instrument Design & Ethics: Innovated with glass and Teflon components to remove chemical errors in ozonesondes; upheld the credo “wrong measurements are worse than none.” Her Pune lab became a model of scientific precision.
    • Publications: Authored “Handbook for Solar Radiation Data for India” (1980) and “Wind Energy Resource Survey in India” (1992), both still reference standards for renewable-energy studies.
    • Environmental Vision: Warned early about CFC emissions and ozone depletion; connected industrialization to atmospheric alteration, foreshadowing the Anthropocene concept.
    • Legacy: Her datasets form India’s earliest continuous record of ozone, radiation, and aerosol change, anchoring present-day climate-model validation and policy research.
  • Innovations in Sciences, IT, Computers, Robotics and Nanotechnology

    RRI technique yields Certified Randomness with one Qubit

    Why in the News?

    The Raman Research Institute (RRI), Bengaluru team has mastered the Leggett–Garg Inequality (LGI)–based quantum randomness certification technique.

    What is Quantum Randomness?

    • Overview: Quantum randomness means true unpredictability, results that even nature or science cannot predetermine. They arise from the laws of quantum physics, not from computer programs or hidden causes.
    • Ordinary Computers: In normal computers, random numbers come from formulas called pseudorandom generators. They look random but can be predicted if someone knows the starting point (the “seed”).
    • Quantum Systems: In quantum physics, when you measure something tiny, like the spin of an electron or the path of a light particle (photon), the result is decided only at the moment of measurement. No one, not even nature, “knows” the answer before that.
    • Why it Matters: True randomness is important for data security, safe online transactions, scientific research, and encryption, where predictability can lead to hacking or errors.

    What has RRI achieved?

    • Discovery: Scientists at the Raman Research Institute (RRI), Bengaluru, led by Prof. Urbasi Sinha, have found a way to create and verify true quantum randomness using a regular cloud-based IBM quantum computer.
    • Why it’s Important: Earlier, proving quantum randomness needed expensive lab equipment. Now it can be done remotely and cheaply, accessible to anyone with internet and quantum cloud access.
    • How it Works: The RRI team used just one qubit (the quantum version of a computer bit) to show that the randomness came from quantum effects, not from hardware noise or computer errors.
    • Key Finding: This demonstrates that even imperfect quantum computers can still generate trustworthy and verifiable random numbers, a capability that classical computers cannot achieve.

    What is the Leggett–Garg Inequality (LGI)–Based Test?

    • Basic Idea: The Leggett–Garg Inequality (LGI) is a scientific test that checks whether something behaves like everyday objects (predictable) or like quantum systems (unpredictable).
    • How it was Used: The RRI scientists measured one qubit at three different times to see if its behavior followed normal physics or quantum rules.
    • Two Conditions Checked:
      • LGI Violation – confirmed the qubit was behaving in a truly quantum way.
      • No Signalling in Time – ensured that each measurement was independent and not influenced by the previous one.
    • Result: Meeting both tests proved that the numbers generated were certified as truly random, coming purely from quantum physics, not from any background noise or interference.

    Real-life Applications:

    • Cybersecurity: Such randomness can make unbreakable encryption keys, protecting sensitive data from hackers.
    • Cloud Computing: People using quantum computers online can now access trusted random numbers for research or secure systems anywhere in the world.
    • Testing Quantum Machines: Helps scientists check the quality of quantum computers, since randomness shows how genuinely quantum the machine is.
    • Better Science: Used in simulations, artificial intelligence, and data analysis where unpredictability makes results more reliable.
    • Big Scientific Message: Confirms that the quantum world is truly uncertain, proving one of the most fascinating truths of modern science, that randomness is built into nature itself.
    [UPSC 2025] Consider the following statements:

    I. It is expected that Majorana 1 chip will enable quantum computing.

    II. Majorana 1 chip has been introduced by Amazon Web Services (AWS).

    III. Deep learning is machine learning.

    How many of the statements given above are correct?

    (a) I and II only (b) II and III only (c) I and III only * (d) I, II and III

     

  • Promoting Science and Technology – Missions,Policies & Schemes

    Maitri II Research Station in Antarctica

    Why in the News?

    The Finance Ministry has approved the establishment of Maitri II, India’s newest Antarctic research station, to be built in eastern Antarctica by January 2029.

    About Maitri II Research Station:

    • Objective: Advance research in climatology, glaciology, seismology, biology, and atmospheric sciences while maintaining eco-compliance.
    • Overview: India’s upcoming 4th Antarctic base, to be completed by January 2029 near Schirmacher Oasis, eastern Antarctica, replacing the aging Maitri (1989) which will operate as a summer camp.
    • Implementing Agency: Executed by National Centre for Polar and Ocean Research (NCPOR), Goa under the Ministry of Earth Sciences (MoES); estimated cost ₹2,000 crore.
    • Design & Technology: Features AI-enabled systems, automated sensors, solar and wind power, and upgraded modular accommodation with strict environmental standards.
    • Construction Phases: Prefabrication in India → shipment via Cape Town → transport to Indian Barrier (120 km from Maitri) → on-site assembly during Antarctic summer.

    Back2Basics: India’s Polar Programmes

    • Antarctica Programme: Began in 1981; coordinated by NCPOR.
      • Dakshin Gangotri (1983) – first base, now decommissioned.
      • Maitri (1989) – inland station near Lake Priyadarshini.
      • Bharati (2012) – modern coastal station 3,000 km east.
      • Maitri II (2029) – to be India’s largest and greenest base.
      • Research covers ice-core climate records, marine ecosystems, space weather, and climate modelling.
    • Arctic Programme (2007): Also led by NCPOR; permanent station Himadri at Ny-Ålesund (Svalbard, Norway) studies Arctic warming, polar-monsoon linkages, biodiversity; India holds Observer Status in the Arctic Council (since 2013).

    Key Laws & Treaties governing Polar Expeditions:

    • India Antarctica Act 2022: Implements the Antarctica Treaty (1959); creates Central Committee on Antarctica Governance; bans mining, nuclear activity, non-native species; introduces permit system and Antarctica Fund; severe penalties (up to 20 years).
    • Antarctica Treaty (1959): 54 members (India joined 1983); ensures peaceful scientific use, bans territorial claims and military activity, upholds environmental cooperation.
    • Madrid Protocol (1991): Declares Antarctica a “natural reserve for peace and science”; forbids mineral extraction; mandates Environmental Impact Assessments (EIA).
    • Convention on the Conservation of Antarctic Marine Living Resources (CCAMLR, 1982): Conserves Antarctic marine biodiversity, regulates fishing and resource use to maintain ecosystem balance.
    [UPSC 2015] The term ‘IndARC’, sometimes seen in the news, is the name of Options: (a) an indigenously developed radar system inducted into Indian Defence

    (b) India’s satellite to provide services to the countries of Indian Ocean Rim

    (c) a scientific establishment set up by India in Antartic region

    (d) India’s underwater observatory to scientifically study the Arctic region *

     

  • Volga River

    Why in the News?

    This newscard is an excerpt from the original article published in the Indian Express.

    Volga River

    About the Volga River:

    • Overview: The longest river in Europe (about 3,500 km), originating in the Valdai Hills northwest of Moscow and flowing southeast to the Caspian Sea at Astrakhan.
    • Drainage Basin: Covers around 1.35 million sq. km, among Europe’s largest river systems, with major tributaries, Kama, Oka, Vetluga, and Sura.
    • Historical Role: Served as a critical front during the Battle of Stalingrad (World War II) and remains central to Russian historical and strategic narratives.
    • Cultural Significance: Revered as “Mother Volga”, symbolising Russian unity, resilience, and identity, deeply embedded in folklore and national consciousness.
    • Economic Importance: It contributes one-fourth of Russia’s agricultural output, supports industrial fishing, and sustains key industries, oil refining, shipbuilding, hydroelectric power.
    • Navigation & Connectivity: Linked to the Baltic, Black, and Caspian Seas through an extensive network of canals and reservoirs, forming the backbone of Russia’s inland transport system.
    • Urban & Industrial Corridor: Major cities like Kazan, Samara, Nizhny Novgorod, and Volgograd lie along its course, forming Russia’s industrial-agricultural heartland.
    • Ecological Richness: Supports about 260 bird species and 70 fish species, making it a key biodiversity hotspot within Eurasia.
    [UPSC 2020] Consider the following pairs: River Flows into

    1. Mekong: Andaman Sea

    2. Thames: Irish Sea

    3. Volga: Caspian Sea

    4. Zambezi: Indian Ocean

    Which of the pairs given above is/are correctly matched?

    Options: (a) 1 and 2 only (b) 3 only (c) 3 and 4 only * (d) 1, 2 and 4 only

     

  • Tribes in News

    Tribes in news: Siddi 

    Why in the News?

    President Droupadi Murmu met members of Gujarat’s Siddi Particularly Vulnerable Tribal Groups (PVTGs) community and praised their 72% literacy rate as a sign of social progress.

    President Droupadi Murmu met members of Gujarat’s Siddi Particularly Vulnerable Tribal Groups (PVTGs) community and praised their 72% literacy rate as a sign of social progress.

    About the Siddi Community:

    • Overview: An Afro-Indian tribal group descended from Bantu-speaking peoples of Southeast Africa, brought to India via the Indian Ocean slave trade (7th–19th centuries).
    • Arrival in India: First arrived at Bharuch port (628 CE) with Arab traders; major influxes during Muhammad bin Qasim’s conquest (712 CE) and later under Portuguese and British.
    • Migration & Settlement: Brought as soldiers, sailors, slaves, and servants; some escaped bondage to form independent forest settlements.
    • Genealogy: Studies show 60–75 % African admixture mixed with Indian and Portuguese ancestry accumulated over two centuries.
    • Geographic Distribution: Concentrated in Karnataka (Uttara Kannada, Belgaum, Dharwad) and Gujarat (Junagadh, Gir-Somnath, Saurashtra); smaller groups in Maharashtra, Goa, Telangana, Andhra Pradesh; total population 40 k–2.5 lakh.
    • Historical Role: Served in Deccan Sultanate and Nizam armies; most famous figure, Malik Ambar (1600–1626), Ethiopian-origin prime minister of Ahmadnagar (now Ahilyanagar).

    Cultural and Demographic Features:

    • Social Status: Recognised as Scheduled Tribe (ST) in five regions and as a Particularly Vulnerable Tribal Group (PVTG).
    • Language & Culture: Speak regional languages, Gujarati, Konkani, Marathi, Kannada, but retain African musical and spiritual traditions, notably the Goma/Dhamaal dance rooted in Ngoma drumming and ancestral worship.
    • Religion: Predominantly Muslim (≈ 99 % in Gujarat) with Hindu and Christian minorities; practices blend Sufi, African, and Indian folk elements.
    • Livelihoods & Economy: Depend on agriculture, forest labour, crafts, and daily wage work; socio-economic deprivation and limited access to education, health, housing persist.
    • Cultural Continuity: Maintain African-Indian fusion in music, attire, and cuisine; Marfa music in Hyderabad and Dhamaal dance near Sasan Gir remain iconic.
    • Sports & Identity: Active in boxing and football, using sport for youth empowerment and social mobility.
  • Air Pollution

    Greenhouse Gas Emission Intensity (GEI) Target Rules, 2025

    Why in the News?

    The Centre has notified the first legally binding Greenhouse Gas Emission Intensity (GEI) Target Rules, 2025 for four high-emission sectors:  aluminium, cement, chlor-alkali, and pulp & paper.

    This marks a critical step in operationalising the Carbon Credit Trading Scheme (CCTS), 2023.

    Back2Basics: Greenhouse Gas Emission Intensity (GEI)

    • Overview: GEI is the amount of GHGs emitted per unit of product output or economic activity;  for example, the emissions released in producing one tonne of cement, aluminium, or steel.
    • Unit of Measurement: Expressed in tonnes of carbon dioxide equivalent (tCOe) per unit of product.
    • Composition:
      • Primary gases: Carbon dioxide (CO₂), Methane (CH₄), Nitrous oxide (N₂O).
      • Synthetic gases: Hydrofluorocarbons (HFCs), Perfluorocarbons (PFCs), Sulphur hexafluoride (SF₆).
    • Purpose: GEI helps measure the efficiency of industrial production in terms of emissions.
    • Policy Significance: Reducing GEI aligns industrial operations with national and global climate commitments, particularly under the Paris Agreement (2015), where India has pledged to cut its emissions intensity of GDP by 45% by 2030 (from 2005 levels).

    About Greenhouse Gas Emission Intensity (GEI) Target Rules, 2025:

    • Notification: Issued by the MoEFCC on October 8, 2025, these are India’s first legally binding emission intensity targets for industries.
    • Objective: To limit greenhouse gas emissions per unit of product output in high-emission sectors, thereby promoting low-carbon industrial growth and aligning with India’s Paris Agreement commitment to reduce emission intensity of GDP by 45% by 2030 (from 2005 levels).
    • Coverage: Applies to 282 industrial units across four sectors– cement (186 units), aluminium (13), chlor-alkali (30), and pulp & paper (53).
    • Compliance Period: 2025–26 and 2026–27; emission limits expressed in tCOe (tonnes of CO equivalent) per unit of product.
    • Mechanism:
      • Units achieving targets earn carbon credits (certified by the Bureau of Energy Efficiency).
      • Non-compliant units must buy credits or face environmental compensation under CPCB oversight.
    • Purpose: To operationalise India’s domestic carbon market, encourage technology upgrades, and institutionalise market-based climate compliance.
    • Outcome: Marks transition from voluntary energy-efficiency drives (PAT Scheme) to a legally enforceable carbon-intensity regime, integrating emission monitoring, trading, and compliance.

    What is the Carbon Credit Trading Scheme (CCTS), 2023?

    • Launched by: Ministry of Power in 2023 to establish a domestic carbon trading market under India’s Energy Conservation Act framework.
    • Objective: To create a structured mechanism for generating, certifying, and trading carbon credits earned through verified emission reductions.
    • Administered by: Bureau of Energy Efficiency (BEE), which issues Carbon Credit Certificates (CCC) to compliant industries.
    • Framework:
      • Industries meeting or exceeding GEI targets receive tradable credits.
      • Entities failing to meet targets must purchase credits to offset excess emissions.
      • Credits are traded on the Indian Carbon Market (ICM) platform.
    • Purpose: To make emission reduction economically incentivised, transforming carbon from a cost burden into a market asset.
    • Global Parallel: Similar to the EU Emissions Trading System (2005) and China’s National Carbon Market (2021).
    • Significance: Integrates energy efficiency, emission control, and fiscal instruments to drive India’s net-zero transition through a market-based, transparent, and measurable approach.
    [UPSC 2025] Consider the following statements:

    I. Carbon dioxide (CO₂) emissions in India are less than 0.5 t CO₂/capita.

    II. In terms of CO₂ emissions from fuel combustion, India ranks second in Asia-Pacific region.

    III. Electricity and heat producers are the largest sources of CO₂ emissions in India.

    Which of the statements given above is/are correct?

    Options:

    (a) I and III only (b) II only (c) II and III only * (d) I, II and III

     

  • Artificial Intelligence (AI) Breakthrough

    AgriEnIcs Programme

    Why in the News?

    The Ministry of Electronics and Information Technology announced the transfer of technology for agricultural and environmental solutions developed under the Agricultural and Environmental Electronics (AgriEnIcs) Programme.

    What is AgriEnIcs Programme?

    • Overview: A national initiative of the Ministry of Electronics & Information Technology (MeitY) integrating electronics, IT, and digital technologies into agriculture and environmental management.
    • Objective: To promote research, development, deployment, and commercialization of advanced tools for precision agriculture and sustainable resource monitoring.
    • Nature of Programme: Serves as a national R&D and technology translation platform connecting academia, industry, and government for innovation-driven solutions.
    • Implementing Agency: Led by the Centre for Development of Advanced Computing (C-DAC), Kolkata as nodal agency, with participation from IITs, ICAR institutes, and private entities.
    • Development: All technologies designed and tested in India for affordability and rural scalability.
    • Strategic Vision: Strengthens India’s push toward AI- and IoT-enabled agri-systems, aligning with Atmanirbhar Bharat and Digital India.

    Key Features:

    • Integrated Tech Approach: Combines AI, IoT, machine vision, and sensor networks for intelligent agricultural and environmental systems.
    • Collaborative Framework: Operates through partnerships among MeitY, C-DAC, academic, and industrial institutions to speed up technology transfer.
    • Multi-Domain Focus: Addresses dairy health monitoring, crop quality estimation, odour detection, and waste-management automation.
    • AI & ML Applications: Enables predictive diagnostics, real-time data analytics, and automated decision support in farm operations.
    • Sensor-Based Systems: Deploys wearable sensors, vision devices, and automated analyzers for livestock, grain, and environment monitoring.
    • Scalable Architecture: Interoperable with AgriStack, Ayush Grid, and other government data platforms for nationwide expansion.
  • AYUSH – Indian Medicine System

    [pib] DRAVYA Portal

    Why in the News?

    The Ministry of Ayush has launched the Digitized Retrieval Application for Versatile Yardstick of Ayush Substances (DRAVYA) portal the largest digital repository of Ayurvedic ingredients and formulations.

    About DRAVYA Portal:

    • Developed By: Central Council for Research in Ayurvedic Sciences (CCRAS) under the Ministry of Ayush.
    • Purpose: To build a centralized, open-access knowledge platform integrating classical Ayurveda with modern scientific data for global research and policy use.
    • Launch: Released on 10th Ayurveda Day (23 September 2025) at Goa, marking a major digital step in traditional medicine.
    • Phase I Coverage: Includes data on 100 medicinal substances, updated through a dedicated entry system ensuring precision and authenticity.
    • Integration Goal: Designed to connect with the Ayush Grid and allied Ministry databases for coordinated digital governance and research.
    • Scope: Merges textual, botanical, pharmacological, and chemical information for cross-disciplinary validation and innovation.

    Key Features:

    • AI-Ready Design: Built with artificial intelligence capability for analytics, discovery, and predictive research.
    • Open-Access Repository: Consolidates validated data from classical texts, scientific literature, and field studies in searchable form.
    • Comprehensive Profiles: Details each substance’s pharmacotherapeutics, botany, chemistry, pharmacology, and safety aspects.
    • QR-Code Integration: Enables standardised display of plant data in gardens, repositories, and institutions.
    • Advanced Search Filters: Sorts substances by rasa (taste), virya (potency), vipaka (post-digestive effect), and therapeutic use.
    • Dynamic Database: Continuously updated for authenticity and scientific rigour.
    • Global Accessibility: Serves as a credible digital reference for researchers, policymakers, and innovators worldwide.
    • Future Expansion: Will interlink with Ayush Grid, National Medicinal Plants Database, and Ayush Drug Policy for an integrated digital health ecosystem.