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

Type: Prelims Only

  • Climate Change Impact on India and World – International Reports, Key Observations, etc.

    Southern Ocean  

    Why in the News?

    Scientists have found that the Southern Ocean mitigates global surface warming by absorbing a large share of carbon released by human activities.

    About the Southern Ocean

    • Also known as the Antarctic Ocean
    • Fourth largest ocean by surface area
    • Described by the International Hydrographic Organisation as the southernmost part of the World Ocean

    Formation and Geological History

    • Formed around 34 million years ago
    • Resulted from the separation of Antarctica and South America
    • Opening of the Drake Passage allowed free circumpolar water flow
    • This isolation contributed to Antarctic cooling and ice sheet formation

    Role of the Southern Ocean

    Climate Regulation

    • Absorbs large amounts of atmospheric carbon dioxide
    • Takes up excess heat generated by global warming
    • Acts as a major carbon sink

    Global Ocean Circulation

    • Drives large scale circulation of ocean waters
    • Influences heat and nutrient distribution worldwide
    • Plays a role in deep water formation

    Sea Ice Dynamics

    • Seasonal expansion and retreat of sea ice affects albedo
    • Influences global climate feedback mechanisms

    Prelims Pointers

    • Southern Ocean surrounds Antarctica completely
    • Antarctic Circumpolar Current has no continental barrier
    • Drake Passage is key to global ocean circulation
    • Southern Ocean absorbs both heat and carbon dioxide
    • Crucial for long term climate stability
    [2011] Westerlies in the southern hemisphere are stronger and persistent than in the northern hemisphere. Why? 

    1. Southern hemisphere has less landmass as compared to northern hemisphere. 

    2. Coriolis force is higher in southern hemisphere as compared to northern hemisphere. 

    Which of the statements given above is/are correct? 

    (a) 1 only (b) 2 only (c) Both 1 and 2 (d) Neither 1 nor 2

  • J&K – The issues around the state

    Chillai Kalan Begins in Kashmir 

    Why in the News?

    The higher reaches of Kashmir Valley witnessed snowfall and the plains received rain as Chillai-Kalan, the harshest 40 day winter phase, began on December 21, 2025.

    What is Chillai Kalan

    • Meaning: Big cold in Kashmiri
    • Duration: 40 days
    • Period: December 21 to January 30
    • Significance: Coldest phase of winter in Kashmir
    • Belief: Rain or snow on the first day is considered a good omen and indicates heavy snowfall ahead

    Importance of the Precipitation

    • Ended a prolonged dry spell in the Valley
    • Helped reduce dust and dryness
    • Expected to improve water availability and snow reserves
    • Dry winter last year had caused
      • Health issues like cough and cold
      • Problems for agriculture and tourism sector

    Follow-Up Cold Phases

    After Chillai Kalan, Kashmir experiences two shorter cold spells

    • Chillai Khurd meaning small cold
    • Chillai Bacha meaning baby cold

    Prelims Pointers

    • Chillai Kalan is unique to Kashmir climate tradition
    • Heavy snowfall during this phase replenishes glaciers and water sources
    • Gulmarg and Sonamarg are key winter tourism centres
    • Sadhna Top is strategically important due to its proximity to the Line of Control
    [2015] Consider the following statements: 

    1. The winds which blow between 30° N and 60° S latitudes throughout the year are known as westerlies. 

    2. The moist air masses that cause winter rains in North-Western region of India are part of westerlies. 

    Which of the statements given above is/are correct? 

    (a) 1 only (b) 2 only (c) Both 1 and 2 (d) Neither 1 nor 2

  • Foreign Policy Watch: India-Middle East

    Syria Latest News  

    Why in the News?

    Recently, the US military carried out a strike against the Islamic State group in Syria.

    About Syria

    Location

    • Located on the eastern coast of the Mediterranean Sea
    • Lies in southwestern Asia
    • Part of the Levant region

    Bordering Countries

    • North: Turkey
    • West: Lebanon
    • East: Iraq
    • South: Jordan
    • Southwest: Israel

    Capital City

    • Damascus
    • One of the oldest continuously inhabited cities in the world

    Geographical Features of Syria

    Physiographic Division

    • Syria has two major natural regions
      • Western region
      • Eastern region

    Western Region

    • Narrow and fertile coastal plains
    • Lies along the eastern Mediterranean coast
    • Supports agriculture and major population centres

    Eastern Region

    • Dominated by the Syrian Desert
    • Composed of dry steppe and true desert landscape
    • Sparse population and arid climate

    Rivers and Lakes

    Major River

    • Euphrates River
    • Flows across eastern Syria before entering Iraq
    • Lifeline for irrigation and settlements

    Important Lake

    • Lake al Assad
    • Man made reservoir on the Euphrates River
    • Created by the Tabqa Dam

    Deserts and Relief

    Desert Region

    • Southern and eastern Syria form part of the northern Syrian Desert
    • Extends into Iraq and Jordan

    Highest Point

    • Mount Hermon
    • Height: 2,814 metres
    • Located near the Syria Lebanon Israel border region

    Prelims Pointers

    • Syria has a Mediterranean coastline despite being largely desert
    • Euphrates is the most important river system of Syria
    • Damascus is inland and not a coastal capital
    • Syrian Desert links West Asia with Mesopotamia
    • Strategic location connecting Asia, Europe and Africa
    [2017] Mediterranean Sea is a border of which of the following countries? 

    1. Jordan 

    2. Iraq 

    3. Lebanon 

    4. Syria 

    Select the correct answer using the code given below: 

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

  • Economic Indicators and Various Reports On It- GDP, FD, EODB, WIR etc

    GDP is growing rapidly, Why isn’t private capex?

    Introduction

    India recorded real GDP growth of over 8% in the recent quarter, even after adjusting for the post-COVID base effect. However, this growth has not translated into a revival of private capital expenditure (capex). Private investment as a share of GDP remains near 11-12%, significantly below earlier peaks. This divergence between output growth and investment momentum raises concerns regarding the sustainability and quality of economic expansion.

    Why in the News?

    India is witnessing a structural decoupling between GDP growth and private investment, a departure from historical growth cycles where investment led expansion. Despite low corporate leverage, improved profitability, and strong balance sheets, private firms are refraining from capacity expansion. Private capex as a share of GDP in 2023-24 stands at 11.5%, among the lowest since the early 2000s, even as overall GDP growth remains strong. This contradiction signals deeper constraints within the investment climate and demand structure.

    Why Has Private Investment Stagnated Despite High GDP Growth?

    1. Low Private Capex Share: Private investment remains around 11-12% of GDP, compared to over 15% during earlier growth phases, indicating limited contribution to growth momentum.
    2. Historical Contrast: During the mid-2000s investment boom, private capex expanded alongside GDP, unlike the present phase where growth is consumption- and public-investment-driven.
    3. Persistence of Trend: The stagnation has continued for over a decade, suggesting structural rather than cyclical causes.

    How Do Existing Capacities Affect Investment Decisions?

    1. Underutilised Capacity: Manufacturing capacity utilisation remains below 75%, reducing incentives for fresh investment.
    2. Sufficient Production Headroom: Firms meet incremental demand without adding new plants, weakening the case for capex.
    3. Sectoral Evidence: Manufacturing output growth has not been matched by expansion in installed capacity.

    Why Are Corporates Prioritising Deleveraging Over Expansion?

    1. Debt Reduction Strategy: Indian companies reduced leverage significantly after the balance sheet stress of the previous decade.
    2. Cash Accumulation: Firms are holding cash or investing in financial assets instead of productive capital.
    3. Merger and Acquisition Preference: Investment flows favour acquisitions rather than greenfield capacity creation.

    What Role Does Demand Uncertainty Play?

    1. Uneven Consumption Recovery: Demand recovery remains skewed, limiting visibility for long-term investment.
    2. Export Volatility: Weak global demand constrains export-led investment decisions.
    3. Cautious Business Sentiment: Firms delay irreversible investments under uncertain macroeconomic conditions.

    How Has Public Investment Substituted for Private Capex?

    1. Public Capex Surge: Government capital expenditure has expanded rapidly, compensating for private investment weakness.
    2. Crowding-In Limitations: Public capex has not yet generated sufficient downstream demand to trigger private investment.
    3. Infrastructure-Led Growth Bias: Growth relies disproportionately on state-led infrastructure spending.

    Why Has Investment Efficiency Declined?

    1. ICOR Trends: Higher Incremental Capital Output Ratios indicate reduced efficiency of capital deployment.
    2. Financialisation of Profits: Corporate profits increasingly channelled into financial investments rather than physical assets.
    3. Shift in Corporate Strategy: Emphasis on balance sheet strength over expansion.

    Conclusion

    Sustained GDP growth without commensurate private investment reflects a fragile growth model. While public expenditure has stabilised economic momentum, long-term expansion depends on reviving private capex through demand certainty, capacity utilisation improvement, and investment confidence. Without this transition, growth risks remaining shallow and state-dependent.

    PYQ Relevance

    [UPSC 2020] Explain the meaning of investment in an economy in terms of capital formation. Discuss the factors to be considered while designing a concession agreement between a public entity and private entity.

    Linkage: The question examines investment as capital formation. It directly aligns with the article’s focus on weak private GFCF despite strong GDP growth, highlighting the investment-growth disconnect.

  • Defence Sector – DPP, Missions, Schemes, Security Forces, etc.

    Dark Eagle Hypersonic Missile System

    Why in the News?

    The United States Army and United States Navy have successfully completed integrated testing of the Dark Eagle Long Range Hypersonic Weapon (LRHW) system.

    About Dark Eagle Hypersonic Missile System

    • Hypersonic missile system developed for the United States Army
      Non nuclear, ground-launched weapon system
      • Designed for strategic attack missions
      • Developed by Lockheed Martin and Northrop Grumman
      • Intended to penetrate Anti Access Area Denial (A2 AD) environments

    Strategic Role

    • Suppresses long range enemy fires
      • Penetrates advanced missile defense systems
      • Delivers rapid, precise, and time critical strikes
      • Enhances conventional deterrence without nuclear escalation

    Prelims Pointers

    • Country: United States
      • Type: Ground launched hypersonic weapon
      • Nuclear status: Non nuclear
      • Speed: Up to Mach 17
      • Key component: Common Hypersonic Glide Body
      • Objective: Penetration of A2 AD defenses
    [2022] Which one of the following statements best reflects the idea behind the “Fractional Orbital Bombardment System” often talked about in media?

     (a) A hypersonic missile is launched into space to counter the asteroid approaching the Earth and explode it in space. 

    (b) A spacecraft lands on another planet after making several orbital motions. 

    (c) A missile is put into a stable orbit around the Earth and deorbits over a target on the Earth. 

    (d) A spacecraft moves along a comet with the same speed and places a probe on its surface.

  • Bharat Taxi Initiative

    Why in the News?

    The Government of India has launched the Bharat Taxi Initiative, a cooperative-based national ride-hailing platform.

    About Bharat Taxi Initiative

    • First of its kind cooperative driven, citizen first ride hailing initiative
    • India’s first cooperative taxi network
    • Drivers become shareholders and co owners of the platform
    • Aims to provide fair income, transparency, and platform ownership to drivers

    Institutional Framework

    • Developed under the Ministry of Cooperation
    • Technical support by National e-Governance Division (NeGD)

    Promoting Institutions

    • National Cooperative Development Corporation (NCDC)
      • Indian Farmers Fertiliser Cooperative (IFFCO)
      • AMUL
      • KRIBHCO
      • National Agricultural Cooperative Marketing Federation of India (NAFED)
      • National Bank for Agriculture and Rural Development (NABARD)
      • National Dairy Development Board (NDDB)
      • National Cooperative Exports Limited (NCEL)
    [2022] Consider the following: 

    1. Aarogya Setu 

    2. CoWIN 

    3. DigiLocker 

    4. DIKSHA 

    Which of the above are built on top of open-source digital platforms? 

    (a) 1 and 2 only 

    (b) 2, 3 and 4 only 

    (c) 1, 3 and 4 only 

    (d) 1, 2, 3 and 4

  • Global Geological And Climatic Events

    Kavachi Volcano

    Why in the News?

    Scientists have reported rare underwater footage showing sharks living inside the crater of Kavachi volcano, near the Solomon Islands. This discovery challenges earlier assumptions about marine survival in extreme volcanic environments.

    About Kavachi Volcano

    • A shallow submarine volcano located in the South Pacific Ocean
    • Situated south of Vangunu Island in the Solomon Islands
    • Lies on the Pacific Ring of Fire, a highly tectonically active zone
    • Among the few active and visible undersea volcanoes in the world

    Volcanic Activity

    • Known for frequent but unpredictable eruptions
    • First documented eruptive activity in 1939
    • Has experienced multiple temporary island forming events

    Prelims Pointers

    • Type: Submarine volcano
    • Location: South Pacific Ocean
    • Tectonic setting: Pacific Ring of Fire
    • Key feature: Temporary island formation
    • Recent relevance: Sharks observed inside a volcanic crater

    [2024] Consider the following: 1. Pyroclastic debris 2. Ash and dust 3. Nitrogen compounds 4. Sulphur compounds. How many of the above are products of volcanic eruptions? 

    (a) Only one

    (b) Only two

    (c) Only three

    (d) All four 

  • Internal Security Architecture Shortcomings – Key Forces, NIA, IB, CCTNS, etc.

    Sashastra Seema Bal (SSB)

    Why in the News?

    The Prime Minister, Narendra Modi, extended greetings to all personnel of the Sashastra Seema Bal on its Raising Day.

    About Sashastra Seema Bal (SSB)

    • Formerly known as Special Service Bureau
    • Established: 15 March 1963
    • Background: Formed after the Sino Indian Conflict of 1962
    • Force Type: Central Armed Police Force (CAPF)
    • Administrative Control: Ministry of Home Affairs

    Mandate and Area of Responsibility

    • Guards India’s international borders with Nepal and Bhutan
    • Promotes border security awareness among border populations

    Roles and Functions

    • Prevents smuggling, illegal immigration, and transnational crimes
    • Checks unauthorised entry and exit along the border
    • Assists in border area development
      • Construction of schools, toilets, roads, and public infrastructure
    • Performs law and order duties, counter insurgency operations, and election duties
    • Participates in UN peacekeeping missions when assigned by the central government

    Prelims Pointers

    • Border responsibility: Nepal and Bhutan only
    • Under Ministry of Home Affairs, not Defence Ministry
    • Origin linked to 1962 Sino Indian War
    • Combines border guarding with community oriented development
    [2023] With reference to Home Guards, consider the following statements: 

    1. Home Guards are raised under the Home Guards Act and Rules of the Central Government. 

    2. The role of the Home Guards is to serve as an auxiliary force to the police in maintenance of internal security. 

    3. To prevent infiltration on the international border/coastal areas, the Border Wing Home Guards Battalions have been raised in some States. 

    How many of the above statements are correct? 

    (a) Only one (b) Only two (c) All three (d) None

  • Climate Change Impact on India and World – International Reports, Key Observations, etc.

    White Spot Disease

    Why in the News?

    • The Minister of Fisheries, Animal Husbandry and Dairying informed the Rajya Sabha about White Spot Disease

    About White Spot Disease

    Highly contagious viral disease
    • Affects crustaceans such as prawns, yabbies, and crabs
    • Causes mass mortality in shrimp aquaculture

    Causative Agent

    White Spot Syndrome Virus (WSSV)
    Double stranded DNA virus
    Genus: Whispovirus
    Family: Nimaviridae

    Host Range

    All decapod crustaceans belonging to order Decapoda
    • Includes prawns, shrimps, lobsters, and crabs
    • Occurs in marine, brackish, and freshwater environments

    Mode of Transmission

    Vertical transmission
    From infected brood stock to post larvae
    Horizontal transmission
    Through carrier animals
    By cannibalism of infected organisms

    Geographical Distribution

    • Reported from Bangladesh and eastward from India

    Among the following organisms, which one does not belong to the class of other three? (2014)

    (a) Crab 

    (b) Mite 

    (c) Scorpion 

    (d) Spider

  • New Species of Plants and Animals Discovered

    Kheoni Wildlife Sanctuary

    Why in the News?

    Forest Department officially recorded sightings of two Wild Dogs (Dholes) in Kheoni Wildlife Sanctuary

    About Kheoni Wildlife Sanctuary

    Location: Madhya Pradesh
    Connectivity: Linked through corridors with Ratapani Tiger Reserve
    Vegetation Type: Dry deciduous forests

    Dhole (Asiatic Wild Dog)

    Basic Facts
    Wild canid carnivorous species
    • Known for pack hunting behaviour

    Other Names
    • Indian wild dog, Whistling dog, Red wolf, Red dog and Mountain wolf

    Habitat
    • Dense forests, Scrub forests, Steppes, Mountains and Pine forests

    Distribution
    Central Asia
    Eastern Asia
    Southeast Asia
    • In India, stronghold in Western Ghats and Eastern Ghats

    Conservation Status
    IUCN Red List: Endangered
    CITES: Appendix II
    Wildlife Protection Act, 1972: Schedule II

    Recently there was a proposal to translocate some of the lions from their natural habitat in Gujarat to which one of the following sites? (2017)

    (a) Corbett National Park 

    (b) Kuno Palpur Wildlife Sanctuary 

    (c) Mudumalai Wildlife Sanctuary 

    (d) Sariska National Park