💥UPSC 2026, 2027, 2028 UAP Mentorship (March Batch) + Access XFactor Notes & Microthemes PDF

Type: Prelims Only

  • Water Management – Institutional Reforms, Conservation Efforts, etc.

    Ecological Impact of the ELSA 3 Shipwreck in the Arabian Sea

    Why in the News?

    The sinking of the ELSA 3 ship off the Kerala coast in May led to a significant ecological disruption in the south-eastern Arabian Sea, a new study has confirmed.

    Ecological Impact of the ELSA 3 Shipwreck in the Arabian Sea

    About the Pollution and Contaminants:

    • Oil Slick: Wreck of ELSA 3 released petroleum pollutants, initially forming a slick of about 2 square miles.
    • Polyaromatic Hydrocarbons (PAHs): Compounds like naphthalene, fluorene, anthracene, phenanthrene, fluoranthene, pyrene detected; toxic, carcinogenic, and bioaccumulative.
    • Naphthalene Marker: High levels confirmed continuous leakage from fuel tanks.
    • Trace Metals: Nickel, lead, copper, vanadium found in elevated levels in water and sediments, worsening toxicity.
    • Distribution: Oil spread shifted with sea turbulence—first mid-depth concentration, later visible on the surface.

    Ecological Impacts of the Oil Spill:

    • Plankton: Zooplankton showed pollutant accumulation, marking entry into the marine food chain.
    • Fish Eggs & Larvae: Collected in the southwest monsoon spawning season displayed decay and mortality, threatening commercial species recruitment.
    • Benthic Organisms: Sensitive species declined within days; only pollution-tolerant worms and bivalves survived, reflecting seabed stress.
    • Higher Fauna: Brown Noddy seabird (Anous stolidus) recorded with oil-soaked plumage, highlighting risks to birds and larger marine life.
    • Overall Effect: A multi-level disruption from plankton to fish stocks to seabirds.

    Microbial Response and Bioremediation:

    • Bacterial Diversity: Metagenomic studies found hydrocarbon-degrading bacteria near the wreck.
    • Key Strains: Neptunomonas acidivorans, Halomonas tabrizica, Acinetobacter baumannii detected.
    • Implications: Their presence reflects both severe contamination and natural bioremediation potential.
    • Outlook: Microbial action may reduce pollution gradually, but contamination in the Arabian Sea remains significant.
    [UPSC 2017] In the context of solving pollution problems what is/are the advantage/disadvantages of bioremediation technique?

    1. It is a technique for cleaning up pollution by enhancing the same biodegradation process that occurs in nature.

    2. Any contaminant with heavy metals such as cadmium and lead can be readily and completely treated by bioremediation using microorganisms.

    3. Genetic engineering can be used to create microorganisms specifically designed for bioremediation.

    Select the correct answer using the code given below:

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

     

  • Iran’s Nuclear Program & Western Sanctions

    US revokes sanctions waiver on Chabahar Port

    Why in the News?

    The U.S. has ended the 2018 waiver that let India use Iran’s Chabahar Port for Afghanistan’s reconstruction, revoking it within 10 days.

    US revokes sanctions waiver on Chabahar Port

    About Chabahar Port:

    • Location: Deep-water port in Sistan-Baluchistan province of Iran, on the Gulf of Oman at the mouth of the Strait of Hormuz.
    • Unique Feature: The only Iranian port with direct access to the Indian Ocean.
    • Distances: Kandla Port, Gujarat – 550 nautical miles, Mumbai – 786 nautical miles from Chabahar.
    • Structure: Comprises Shahid Beheshti and Shahid Kalantari terminals.
    • Connectivity Potential: Its proximity to Afghanistan, Pakistan, and India and position on the International North-South Transport Corridor (INSTC) gives it the ability to become a major commercial hub.
    • INSTC: A multi-modal route linking the Indian Ocean and Persian Gulf to the Caspian Sea via Iran, and onward to northern Europe via Russia.

    India’s Engagements for Chabahar Port:

    • Tripartite Agreement (2016): India, Iran, and Afghanistan agreed to develop the Shahid Beheshti terminal, marking India’s first foreign port project.
    • Infrastructure Goals: Develop the port and build a rail line to Zahedan, bypassing Pakistan to reach Afghanistan and Central Asia.
    • Recent Developments: In May 2024, India Ports Global Ltd (IPGL) signed a 10-year lease to operate Shahid Beheshti.
    • Commitments: India pledged $120 million in equipment and a $250 million credit line.
    • Operations: India supplied 6 harbour cranes; facilitated shipments of 2.5 million tonnes of wheat and 2,000 tonnes of pulses to Afghanistan.

    Implications of US Sanctions for India:

    • Economic Setback: Jeopardises India’s ₹200 crore investment and future projects.
    • Connectivity Loss: Cuts India’s only direct maritime gateway to Afghanistan, Central Asia, and INSTC.
    • Strategic Impact: Weakens India’s counter to China’s Gwadar Port in Pakistan under CPEC.
    • Diplomatic Strain: Risks tensions with Iran (strategic partner) and the United States (major trade partner).
    • Operational Challenges: Sanctions may deter shippers, insurers, and suppliers, slowing port activity.
    [UPSC 2017] What is the importance of developing Chabahar Port by India?

    Options: (a) India’s trade with African countries will enormously increase.

    (b) India’s relations with oil-producing Arab countries will be strengthened.

    (c) India will not depend on Pakistan for access to Afghanistan and Central Asia *

    (d) Pakistan will facilitate and protect the installation of a gas pipeline between Iraq and India

     

  • 7 Natural Heritage Sites from India added to UNESCO’s Tentative List

    Why in the News?

    Seven natural heritage sites from India were added to UNESCO’s Tentative List of World Heritage Sites, raising India’s tally from 62 to 69 places.

    About the 7 newly added UNESCO Tentative List Sites:

    Site

    Detailed Facts

    Deccan Traps (Panchgani & Mahabaleshwar, Maharashtra) • One of the world’s largest volcanic provinces (~66 mya)
    Basalt lava flows covering ~500,000 sq. km
    Step-like “trap” topography, fossil beds, red bole layers
    • Linked to end-Cretaceous mass extinction
    • Part of Western Ghats; within Koyna Wildlife Sanctuary
    St. Mary’s Island Cluster (Udupi, Karnataka) Four islands in Arabian Sea near Udupi
    • Famous for hexagonal/polygonal rhyolitic lava columns (~85–88 mya)
    • Formed during breakup of India–Madagascar
    • Declared National Geo-heritage Monument (2016)
    Rare acidic lava formations, unique in India
    Meghalayan Age Caves (East Khasi Hills, Meghalaya) Mawmluh Cave is type locality for Meghalayan Age (~4,200 years ago)
    • Records global drought event in late Holocene
    • Meghalaya has longest sandstone cave (Krem Puri – 24.5 km)
    Karst systems preserve stalagmites, paleoclimate archives
    • Culturally significant to Khasi tribes; threatened by mining
    Naga Hill Ophiolite (Nagaland) • 200 km belt of uplifted oceanic crust & mantle rocks
    • Composed of gabbro, peridotite, basalt
    • Formed at supra-subduction / mid-ocean ridge zones
    • Later thrust onto Indian continental plate
    • Only major ophiolite exposure in India; National Geological Monument
    Erra Matti Dibbalu (Red Sand Hills, Andhra Pradesh) Quaternary-age coastal red sand mounds (~12,000–18,500 years old)
    • Spread over 5 km near Visakhapatnam
    • Derived from ancient Khondalite rocks
    Record climate shifts, sea-level oscillations, monsoon history
    Mesolithic–Neolithic artefacts found; National Geo-heritage Monument
    Tirumala Hills (Tirupati, Andhra Pradesh) • Famous for Eparchaean Unconformity (1.5 billion-year gap)
    • Boundary between Archaean gneiss & Proterozoic quartzites
    • Hosts Silathoranam natural arch, rare erosional landform
    • Hills rise to ~900 m; part of Cuddapah Basin
    • Combines geological, tectonic, and spiritual significance
    Varkala Cliff (Kerala) • Coastal cliff escarpment up to 80 m high
    • Exposes Mio-Pliocene Warkalli Formation (1.3–25 mya)
    Fossiliferous sedimentary rocks beside sea (rare in India)
    Natural springs and aquifers emerge from cliff face
    • Declared National Geological Monument; major tourism hub (Papanasam Beach)

    Back2Basics: UNESCO’s Tentative List

    • What is it: An inventory of cultural and natural sites that a member country plans to nominate for future World Heritage status.
    • Requirement: A site must stay on this list for at least one year before nomination.
    • Purpose: Allows UNESCO to assess Outstanding Universal Value (OUV) and plan conservation.
    • Note: Not all sites on the Tentative List become World Heritage Sites.
    • World Heritage Sites (WHS): Cultural, natural, or mixed sites recognised under the 1972 World Heritage Convention for their OUV.
    • Categories of WHS:
      • Cultural: Temples, monuments, forts, archaeological remains.
      • Natural: National parks, caves, biodiversity zones.
      • Mixed: Sacred landscapes with both cultural and natural value.
    • 10 Criteria for Selection: A site must satisfy at least one of these:
      • Cultural (i–vi): Masterpiece of human genius; interchange of values; unique cultural testimony; outstanding architecture/landscape; example of settlement/land use; linked to events, traditions, or ideas of universal significance.
      • Natural (vii–x): Exceptional natural beauty; example of Earth’s history; ecological or biological processes; key habitats for in-situ biodiversity conservation and threatened species.
    • India: It is currently a member of the UNESCO World Heritage Committee (2021–2025 term); Has 42 World Heritage Sites (34 cultural, 7 natural, 1 mixed).
    [UPSC 2024] Consider the following properties included in the World Heritage List released by UNESCO:

    1. Shantiniketan 2. Rani-ki-Vav 3. Sacred Ensembles of the Hoysalas 4. Mahabodhi Temple Complex at Bodhgaya

    How many of the above properties were included in 2023?

    Options: (a) Only one (b) Only two* (c) Only three (d) All four

     

  • Historical and Archaeological Findings in News

    National Maritime Heritage Complex at Lothal

    Why in the News?

    The PM has recently inspected the progress of the National Maritime Heritage Complex (NMHC) at Lothal in the Ahmedabad district.

    dhol.jpg

    About National Maritime Heritage Complex at Lothal:

    • Location: Lothal, Ahmedabad district, Gujarat, in the Bhal region near the Gulf of Khambhat.
    • Developer: Ministry of Ports, Shipping and Waterways, Government of India.
    • Objective: To showcase India’s 5,000-year-old maritime history, especially the role of Lothal as the world’s earliest dockyard during the Indus Valley Civilization.
    • Historical Significance of Lothal:
      • Built around 2200 BCE as a major Harappan trade and craft centre for beads, gems, and ornaments.
      • Lothal in Gujarati means “Mound of the Dead”, similar to Mohenjo-daro.
      • Excavated by S.R. Rao (1955–1960).
      • Dockyard confirmed through studies (size: 222 x 37 m), once linked with Sabarmati’s old course.
      • Evidence of Lock Gates and Sluice System to regulate flow of water.
      • Trade connections extended to Mesopotamia and other ancient regions.
      • Nominated as a UNESCO World Heritage Site (2014); only known port-town of the Indus Valley Civilization.
    • Features of the Complex:
      • Exhibition halls, maritime park, amphitheater, museum, and research/educational facilities.
      • Will highlight ancient trade routes, shipbuilding traditions, and navigation techniques.
      • Expected to be a major hub for cultural tourism and heritage education.
    [UPSC 2021] Which one of the following ancient towns is well-known for its elaborate system of water harvesting and management by building a series of dams and channelling water into connected reservoirs?

    (a) Dholavira*  (b) Kalibangan (c) Rakhigarhi (d) Ropar

     

  • Festivals, Dances, Theatre, Literature, Art in News

    Sirarakhong Hathei Chilli Festival

    Why in the News?

    The 14th Sirarakhong Hathei Chilli Festival was inaugurated in Manipur.

    Sirarakhong Hathei Chilli Festival

    About Sirarakhong Hathei Chilli Festival:

    • Overview: An annual agricultural and cultural festival celebrated in Sirarakhong village, Ukhrul district, Manipur.
    • Origin: Began in 2010 to promote the Hathei chilli and its farming traditions.
    • Focus: Highlights the Geographical Indication (GI)-tagged Hathei chilli, which received GI status in 2021.
    • Activities: Involves flag hoisting, Tangkhul Naga cultural events, buyer–seller meets, marketing programmes, exhibitions, and awareness drives on government schemes.

    Salient Features of Hathei Chilli:

    • Local Identity: Known as Sirarakhong chilli, indigenous to Ukhrul district.
    • Cultivation: Grown on slopes under the traditional jhum system.
    • Distinct Qualities: Recognised for its bright red colour, unique flavour, and medium pungency.
    • ASTA Value: Possesses a high American Spice Trade Association colour value, making it sought after for food colouring.
    • Nutritional Benefits: Rich in antioxidants, Vitamin C, and calcium, with medicinal value.
    • Uses: Widely used in cooking, pickles, flavouring, food colouring, and processing industries.
    • Uniqueness: Its qualities stem from the soil and climate of Sirarakhong, not reproducible elsewhere.
    [UPSC 2018] Consider the following pairs:

    Tradition- State

    1. Chapchar Kut festival — Mizoram

    2. Khongjom Parba ballad — Manipur

    3. Thong-To dance — Sikkim

    Which of the pairs given above is/are correct?

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

     

  • Launch of Bima Sugam Portal

    Why in the News?

    Bima Sugam, envisioned as the world’s largest online marketplace for insurance, was officially launched by the Bima Sugam India Federation (BSIF) at the IRDAI headquarters in Hyderabad.

    What is Bima Sugam?

    • Overview: World’s largest unified digital marketplace for insurance products and services, initiated by the Insurance Regulatory and Development Authority of India (IRDAI).
    • Coverage: Includes life, health, motor, travel, property, agricultural, and commercial insurance.
    • Function: Works like Unified Payments Interface (UPI) for insurance, providing common infrastructure for purchase, renewal, management, and claims.
    • Stakeholders: Brings together insurers, intermediaries, agents, brokers, banks, and customers on a single platform.
    • Governance: Operated by the Bima Sugam India Federation (BSIF) with equity participation from insurance companies.
    • Policy Goal: Forms part of India’s Digital Public Infrastructure (DPI), aligned with the vision of Insurance for All by 2047.
    • Working:  The simplified way for a user on the platform would be as follows:
      • Registration: A person can register using Aadhaar-based KYC or other valid ID.
      • e-Bima Account Creation: A secure, integrated insurance repository has been created.
      • Policy search and comparison: Products from all registered insurance companies are listed with standardized information for easy comparison.
      • Purchase: Policies can be purchased digitally with instant e-documentation and secure payments.
      • Service: Policyholders can renew, update, port, or cancel policies and receive real-time assistance.
      • Claims: Users can submit claims and track the process; insurance companies and TPAs will use backend access for faster verification and settlement.

    Key Features:

    • Phased Rollout: Begins as an information and guidance hub; full transactions enabled gradually.
    • Low-Cost Model: Minimal user charges, unlike private aggregators that rely on high commissions.
    • Centralised Database: Enables policy comparison, customer query resolution, and faster product adoption.
    • Secure Digital Storage: Provides safe policy storage with robust security and compliance standards.
    • Inclusive Ecosystem: All insurers mandated as members, ensuring transparency and fair access.
    [UPSC 2014] With reference to “Aam Admi Bima Yojana”. Consider the following statements:

    1. The member insured under the scheme must be the head of the family or earning member of the family in a rural landless household.

    2. The member insured must be in the age group of 30 to 65 years.

    3. There is a provision for free scholarship for up to two children of the insured who are studying between classes 9 and 12.

    Which of the statements given above is/are correct?

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

     

  • WTO and India

    WTO Agreement on Fisheries Subsidies

    Why in the News?

    The World Trade Organization (WTO) Agreement on Fisheries Subsidies has entered into force on 15 September 2025, three years after adoption in June 2022.

    What is the WTO Agreement on Fisheries Subsidies?

    • Nature: First WTO treaty centred on environmental sustainability, designed to reduce harmful subsidies that drive illegal, unreported, and unregulated (IUU) fishing and overfishing.
    • Core Prohibitions:
      • Subsidies for IUU fishing vessels or operators.
      • Subsidies for fishing in overfished stocks, unless linked to recovery plans.
      • Subsidies for high-seas fishing in areas outside coastal state jurisdiction or Regional Fisheries Management Organizations.
    • Transparency: Members must provide detailed reports on fish stocks, fleets, catch volumes, and subsidies.
    • Transition Period: Two years allowed for developing countries and least developed countries before full implementation.
    • Phased Approach: Called Fish One, to be followed by Fish Two covering overcapacity and fleet subsidies.
    • Global Significance: Contributes to Sustainable Development Goal 14.6, which seeks elimination of harmful subsidies to protect global fish stocks.

    India and this Agreement: 

    • Position: India welcomed the treaty, noting it is one of the lowest fisheries subsidizers despite its large fishing community.
    • Equity Argument: Urged that historic subsidizers and industrial fishing nations take greater obligations, based on polluter pays principle and common but differentiated responsibilities (CBDR).
    • Sector Context: India’s fisheries are dominated by millions of small-scale, traditional fishers dependent on coastal resources, requiring fair treatment.
    • Benefits for India:
      • Curbing IUU fishing by foreign industrial fleets, protecting coastal livelihoods.
      • Allowing space for stock-rebuilding subsidies tied to sustainability.
      • Ensuring fair competition for Indian traditional fishers in global trade.
    [UPSC 2015] The terms ‘Agreement on Agriculture’, ‘Agreement on the application of Sanitary and Phytosanitary Measures’ and ‘Peace Clause’ appear in the news frequently in the context of the affairs of the

    Options: (a) Food and Agricultural Organization (b) United Nations Framework Conference on Climate Change (c) World Trade Organization* (d) United Nations Environment Programme

     

  • Dams and Hydroprojects

    In news: Almatti Dam

    1. Why in the News?

    Karnataka govt. has approved Upper Krishna Project Phase-III to raise Almatti dam height, while Maharashtra warned of moving the Supreme Court against it.

    Why is Maharashtra opposing it?

    • Fears submergence of villages and agricultural land in its territory if water levels rise further.
    • Worries about reduced water availability downstream, affecting its irrigation and drinking water projects.

    About Almatti Dam:

    • Overview: It is a hydroelectric and irrigation project built on the Krishna River in North Karnataka.
    • Completion: July 2005, as part of the Upper Krishna Irrigation Project (UKP).
    • Dimensions: Height 52.5 m, length 3.5 km.
    • Power Generation: A 290 MW station using vertical Kaplan turbines (five of 55 MW and one of 15 MW).
    • Two separate powerhouses: Almatti I and II generate power before releasing water into the Narayanpur Reservoir.
    • Functions: Provides irrigation, potable water, hydroelectric power, and helps in flood management.

    Back2Basics: Krishna River

    In news: Almatti Dam

    • Origin: Near Mahabaleshwar (Satara, Maharashtra), in the Western Ghats.
    • Length: ~1,300 km, second-longest river in peninsular India after Godavari.
    • Course: Flows through Maharashtra (303 km), Karnataka (480 km), Telangana, and Andhra Pradesh, before emptying into the Bay of Bengal.
    • Major Tributaries:
      • Right-bank: Ghatprabha, Malprabha, Tungabhadra.
      • Left-bank: Bhima, Musi, Munneru.
    • Hydropower & Irrigation Projects: Includes Koyna, Tungabhadra, Srisailam, Nagarjuna Sagar, Almatti, Narayanpur, Bhadra.

     

    [UPSC 2005] The Almatti Dam is on the river:

    Options: (a) Godavari (b) Cauvery (c) Krishna* (d) Mahanadi

     

  • Modern Indian History-Events and Personalities

    In news: Malabar Revolt (1921)

    Why in the News?

    This newscard is an excerpt from the original articles published in The Hindu.

    About the Malabar Revolt:

    • Nature: Also known as the Moplah or Mappila Rebellion, it was a major uprising in the Malabar region of Kerala.
    • Causes:
      • Exploitative land tenure policies and high rents on tenant farmers.
      • Lack of tenure security and arbitrary evictions by Hindu Jenmi landlords.
      • A tradition of smaller Moplah uprisings since the 19th century.
    • Immediate trigger: British attempts to arrest Khilafat leaders in Eranad and Valluvanad during the Khilafat and Non-Cooperation Movements.
    • Character: Combined anti-colonial resistance, agrarian unrest, and communal violence, making it one of the most complex uprisings of the freedom struggle.
    • Beginning: Revolt broke out on 20 August 1921, with attacks on police stations, British offices, and landlord property.
    • British Response: Martial law, mass troop deployment, brutal suppression by early 1922.
    • Leaders:
      • Variyamkunnath Kunjahammed Haji: Set up a parallel Khilafat government in Nilambur.
      • Ali Musaliar: Spiritual guide, revered locally, executed by British.
      • Sayyid Alavi Tangal: religious inspiration for resistance.

    Consequences and Atrocities:

    • Parallel Government: Rebels briefly established parallel administration in parts of Malabar.
    • Casualties: 2,337 rebels killed, over 45,000 imprisoned, nearly 10,000 missing.
    • Violence: Widespread communal killings, forced conversions, destruction of temples and homes.
    • Wagon Tragedy (Nov 1921): 67 Moplah prisoners suffocated to death in a railway wagon.
    • Impact: Large-scale displacement, ruined villages, families uprooted.
    • Political Shift: Indian National Congress initially supported the anti-British nature, but withdrew after communal excesses.

    Historical Assessment:

    • Bipan Chandra: Saw it primarily as a peasant/agrarian revolt.
    • Sumit Sarkar: Interpreted it as an anti-landlord revolt.
    • Colonial View: Framed as a communal rebellion to weaken anti-British legitimacy.
    • Recent Scholarship: Abbas Panakkal highlights it as part of Khilafat and Non-Cooperation, initially uniting Hindus and Muslims.
    • E.M.S. Namboodiripad, Saumyendranath Tagore: Called it a spontaneous peasant uprising against colonial oppression.
    • Recognition: Many rebels are honoured as freedom fighters by Kerala government, though debates continue whether to classify it as anti-colonial, agrarian, or communal.
    [UPSC 2020] With reference to the history of India, “Ulgulan” or the Great Tumult is the description of which of the following events?

    Options:

    (a) The Revolt of 1857 (b) The Mappila Rebellion of 1921 (c) The Indigo Revolt of 1859 – 60 (d) Birsa Munda’s Revolt of 1899-1900*

     

  • Indian Army Updates

    Upgradation of Army Radars

    Why in the News?

    After Operation Sindoor and Pakistani drone incursions, the Army is upgrading air defence with advanced radars to counter low-RCS (radar cross-section) drones and other aerial threats along northern and western borders.

    What are Radars?

    • About: Radar stands for Radio Detection and Ranging; it uses radio waves to locate, track, and measure speed of objects.
    • Components: Transmitter emits radio signals, receiver captures reflections.
    • Functions: Measures direction, distance (via time delay), and velocity (via Doppler shift).
    • Types in air defence:
      • Surveillance radars: Monitor airspace and detect aerial objects, not directly linked to weapons.
      • Fire control radars: Provide targeting data to guide anti-aircraft guns or missiles.

    Current Indian Capabilities:

    • Indian Air Force: Operates High-Power Radars and Medium-Power Radars for long-range, high-altitude threats such as jets, AWACS, and large transport aircraft.
      • For fire control, the Air Force employs systems like the 3D Central Acquisition Radar and Rajendra radar.
    • Indian Army: Uses Low-Level Light-Weight Radars, designed to pick up low-flying, small radar cross-section objects like drones.
      • Upgraded Flycatcher and Air Defence Tactical Control Radar systems to aim weapons and manage local defence.

    India’s Air Defence Infrastructure:

    • Missile systems: Includes Russian S-400 and the indigenous Akash missile system.
    • Army’s Akashteer system: Integrates radars, sensors, air defence guns, and communications into a real-time operational air picture.
    • IAF’s IACCS (Integrated Air Command and Control System): Unifies data from multiple assets for coordinated detection and interception.
    • Mission Sudarshan Chakra: Ongoing modernisation programme; DRDO recently tested the Integrated Air Defence Weapon System.
    [UPSC 2024] Consider the following activities:

    1. Identification of narcotics on passengers at airports or in aircraft

    2. Monitoring of precipitation

    3. Tracking the migration of animals

    In how many of the above activities can the radars be used?

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