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Type: Prelims Only

  • Global Geological And Climatic Events

    Super Typhoon Ragasa

    Prelims Only | Geography | Mains Paper 1: Important Geophysical Phenomena

    Why in the News?

    China is planning to evacuate 4 lakh people ahead of the landfall of Super Typhoon Ragasa.

    Super Typhoon Ragasa

    About Typhoon & Super Typhoon:

    • Typhoon: A tropical cyclone forming in the Western Pacific Ocean and China Sea, usually above sea temperatures of 27°C.
    • Formation: Warm, moist air rises and creates a low-pressure system with spiralling winds.
    • Super Typhoon: Defined by the US Joint Typhoon Warning Center (JTWC) as sustained winds of ≥240 km/h (some agencies use 185 km/h).
    • Structure:
      • Eye: Calm centre.
      • Eyewall:  Strongest winds and rainfall.
      • Spiral Rainbands: Bands of showers spreading outward.
    • Impacts: Can cause storm surges, coastal flooding, landslides, and destruction of infrastructure, agriculture, and homes.

    Back2Basics: Tropical Cyclones

    • What is it: Large low-pressure systems over warm oceans, marked by rotating winds, heavy rain, and storm surges.
    • Conditions: Form when ocean temps >27°C, with moist rising air releasing latent heat to fuel convection.
    • Rotation: Driven by the Coriolis force – anticlockwise in Northern Hemisphere, clockwise in Southern.
    • Structure: Eye (calm), Eyewall (violent winds/rains), Rainbands (widespread showers).
    • Regional Names: Typhoons (Pacific), Hurricanes (Atlantic/Caribbean), Cyclones (Indian Ocean).
    • Drivers & Frequency: Common in Southeast Asia due to warm Pacific waters, El Niño/La Niña cycles, and climate change.
    • Impacts: Loss of life, property damage, flooding, soil salinisation, displacement, and disease outbreaks.
    • Climate Change Link: Global warming is making tropical cyclones stronger, less predictable, and more frequent, raising risks for coastal populations.

     

    [UPSC 2020] Consider the following statements:

    1. Jet streams occur in the Northern Hemisphere only.

    2. Only some cyclones develop an eye.

    3. The temperature inside the eye of a cyclone is nearly 10°C lesser than that of the surroundings.

    Which of the statements given above is/are correct?

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

     

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  • Global Geological And Climatic Events

    Earth gains new tiny ‘Quasi-Moon’ 2025 PN7

    Prelims Only | Geography | Mains Paper 1: Important Geophysical Phenomena

    Earth gains new tiny 'Quasi-Moon' 2025 PN7

    Why in the News?

    Astronomers have confirmed the discovery of asteroid 2025 PN7, Earth’s latest quasi-moon.

    About Quasi-Moon 2025 PN7:

    • Discovery: First detected on 2 August 2025 by the Pan-STARRS 1 telescope in Hawaii; confirmed in September 2025 as Earth’s newest quasi-satellite.
    • Orbit: Circles the Sun, not Earth, but remains near Earth due to a 1:1 orbital resonance – meaning it completes one solar orbit in the same time as Earth.
    • Distance from Earth: At closest, ~299,000 km, similar to the Moon’s distance.
    • Physical Traits: Roughly 19 metres wide, very faint (magnitude 26.4), requiring large telescopes to track.
    • Orbital Parameters: Semi-major axis 1.003 AU (same as Earth), eccentricity 0.108 (slightly oval), inclination just under 2°.
    • Arjuna Nature: Fits the Arjuna asteroid class criteria – extremely Earth-like orbit, low eccentricity, and low inclination, making it appear as a temporary companion.
    • Stability: Expected to remain a quasi-satellite for ~128 years before shifting into another orbital configuration.

    What is the Arjuna Asteroid Class?

    • Overview: A rare group of near-Earth objects (NEOs) with orbits closely matching Earth’s path around the Sun.
    • Etymology: Originated with the discovery of asteroid 1991 VG by astronomer Robert H. McNaught at the Siding Spring Observatory in Australia in 1991.
    • Name Origin: Inspired by Arjuna from the Mahabharata – symbolising fast-moving and elusive objects.
    • Special Traits:
      • Can approach Earth more closely than most asteroid families.
      • Sometimes become temporary mini-moons or quasi-satellites.
      • Have relatively low relative velocities, making them attractive for spacecraft missions.
    • Scientific Importance:
      • Offer natural laboratories for studying orbital resonance and gravitational effects.
      • Useful for testing asteroid mining and redirection technologies.
      • Significant for planetary defence, since tracking their movements refines collision risk predictions.
    [UPSC 2023] Consider the following pairs:

    Object in space – Description

    1. Cepheids – Giant clouds of dust and gas in space

    2. Nebulae – Stars which brighten and dim periodically

    3. Pulsars – Neutron stars that, are formed when massive stars run out of fuel and collapse

    How many of the above pairs are correctly matched?

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

     

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  • Agmark, Hallmark, ISI, BIS, BEE and Other Ratings

    Centre to simplify Quality Control Order (QCO) framework

    Prelims Only | Economics | Mains Paper 3: Effects Of Liberalization On The Economy, Changes In Industrial Policy and their effects on Industrial Growth

    Why in the News?

    A NITI Aayog panel has proposed easing India’s Quality Control Orders (QCOs) by simplifying certification, assessments, and inspections to support MSMEs amid domestic and global criticism.

    About Quality Control Orders (QCOs):

    • Overview: Issued under the Bureau of Indian Standards (BIS) Act, 2016, QCOs make Indian Standards compulsory for specific products in public interest (health, environment, security, fair trade).
    • Voluntary vs. Mandatory: Normally BIS certification is voluntary, but under QCOs manufacturers/importers must obtain a BIS licence or Certificate of Conformity before production, imports, or sales.
    • Standard Mark: Products under QCOs carry the ISI mark (or Hallmark for jewellery) to indicate conformity.
    • Legal Backing: Governed by BIS (Conformity Assessment) Regulations, 2018; violation punishable with fines or imprisonment.
    • Imports: Applies equally to foreign manufacturers via the Foreign Manufacturers Certification Scheme (FMCS).
    • Coverage: Of ~23,000 BIS standards, only 187 QCOs covering 770 products exist; 84 QCOs covering 343 products issued in the last three years.
    • Example: QCOs for compressors & ACs (2023) boosted compressor output from <2 million (2021–22) to 8 million (2023–24); ACs to 12 million+ units.

    Challenges Related to QCOs:

    • High Costs: Certification involves inspections, documents, and assessments—burdening MSMEs.
    • Non-Tariff Barrier Issues: US, EU, UK, NZ claim India’s QCOs exceed global norms. USTR (2025) flagged BIS marks even for chemicals, requiring site visits.
    • Industry Pushback: MSMEs fear inflationary costs; imports of cheaper raw materials/components restricted.
    • Limited Enforcement: Only 187 of 23,000 standards notified, mainly steel, electronics, chemicals.
    • Implementation Delays: Licence approvals slow; procedures disrupt production and supply chains.
    • Conflicting Views: Some MSMEs benefit (e.g., Birla Aircon turnover jumped ₹7 crore to ₹42 crore after QCO on water coolers), others call it “malign intervention” (NITI Aayog VC Suman Berry).

    Steps Taken by Government:

    • Digitisation: Simplified certification covering 750+ products; licences granted in 30 days.
    • MSME Outreach:
      • Jan Sunwai: Online open-house thrice weekly.
      • Manak Manthan: BIS field initiative for MSME support.
      • Regional Conferences: Led by Department of Consumer Affairs to resolve issues.
    • Capacity Building: Of 50,753 BIS certifications, ~40,000 (≈80%) issued to MSMEs; 24,625 voluntarily obtained for credibility/exports.
    • Trade Readiness: Govt projects QCOs as tools to raise quality and global competitiveness.
    • WTO Consistency: Justified if linked to health, safety, environment, deceptive trade, or security, in line with WTO Technical Barriers to Trade (TBT) Agreement.
    [UPSC 2017] With reference to `Quality Council of India (QCI)’, consider the following statements:

    1. QCI was set up jointly by the Government of India and the Indian Industry.

    2. Chairman of QCI is appointed by the Prime Minister on the recommendations of the industry to the Government.

    Which of the above statements is/are correct?

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

     

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  • International Space Agencies – Missions and Discoveries

    Extreme Nuclear Transients (ENTs) and the Big Bang

    Prelims Only | Science Tech | Mains Paper 3: Awareness in various sc and tech fields

    Extreme Nuclear Transient

    Why in the News?

    New research by the University of Hawaii has discovered Extreme Nuclear Transients (ENTs), the most powerful explosions since the Big Bang, surpassing even gamma-ray bursts (GRBs) in energy output.

    Back2Basics: Big Bang

    • Proponent: In 1927 by Georges Lemaître.
    • Timeline: Universe originated ~13.7–13.8 billion years ago from a singularity.
    • Phases: Began with cosmic inflation, followed by expansion, cooling, and formation of matter, light, and four fundamental forces.
    • Cosmic Evolution: Led to atoms, stars, galaxies, and planets; universe still expanding.
    • Evidence: Supported by cosmic microwave background radiation and Hubble’s observations of galaxy redshifts.

    About Extreme Nuclear Transients (ENTs):

    • Discovery: First reported by astronomers at the University of Hawaii’s Institute for Astronomy (IfA).
    • Cause: Triggered when massive stars (≥3 times Sun’s mass) are torn apart by supermassive black holes at galactic centers.
    • Energy Output: Release ten times more energy than gamma-ray bursts (GRBs), earlier considered the brightest cosmic events.
    • Duration: Remain luminous in radio wavelengths for years, unlike short-lived bursts.

    How ENTs differ from other cosmic events?

    • Gamma-Ray Bursts (GRBs): They come from collapsing stars or mergers; short-lived but highly energetic. ENTs are more powerful and last longer.
    • Tidal Disruption Events (TDEs): TDEs also shred stars, but ENTs involve larger black holes and massive stars, making them rarer.
    • Fast X-ray Transients (FXTs): They are faint, brief X-ray bursts from trapped jets in supernovae. ENTs are brighter, multi-wavelength, and more energetic.

    Scientific Importance of ENTs:

    • Most Energetic Events: Represent the most powerful class of transients ever observed.
    • Black Hole Studies: Offer insights into supermassive black hole dynamics and their role in galactic evolution.
    • Early Universe Clues: Help probe massive stars soon after galaxy formation.
    • Future Observations: Key targets for next-generation telescopes like the Vera C. Rubin Observatory and Nancy Grace Roman Space Telescope.
    [UPSC 2012] Which of the following is/are cited by the scientists as evidence for the continued expansion of the universe?

    1. Detection of microwaves in space

    2. Observation of redshift phenomenon in space

    3. Movement of asteroids in space

    4. Occurrence of supernova explosions in space

    Select the correct answer using the code given below:

    (a) 1 and 2 * (b) 2 only (c) 1, 3 and 4 (d) None of the above.

     

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  • Innovations in Sciences, IT, Computers, Robotics and Nanotechnology

    How different are Supercomputers to normal computers?

    Prelims Only | Science Tech | Mains Paper 3: Awareness in various sc and tech fields

    Why in the News?

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

    What is a Supercomputer?

    • Overview: A high-performance computing system capable of trillions to quintillions of calculations per second.
    • Parallel Computing: Uses thousands of processors working together instead of relying on a single fast processor.
    • Applications: Climate modelling, nuclear simulations, black hole research, drug discovery, and artificial intelligence training.
    • Performance Measure: FLOPs (floating-point operations per second); advanced machines now achieve exaflop levels (10¹⁸ calculations/sec).

    How Supercomputers Differ from Normal Computers

    • Speed: Laptops perform billions of FLOPs; supercomputers perform quintillions.
    • Parallelism: PCs use one or few processors; supercomputers employ thousands to millions of cores.
    • Structure: Built of interconnected nodes (processor + memory bundles) linked by ultra-fast networks.
    • Storage: Manage petabytes of data, unlike gigabytes/terabytes in personal devices.
    • Cooling & Power: Need specialised cooling (water/immersion) and consume electricity equal to a small town.
    • Usage: PCs run interactive apps; supercomputers run scheduled jobs remotely for scientists and researchers.

    India’s journey in Supercomputing:

    • Early Efforts: Began with C-DAC’s PARAM 8000 (1991) after Western import restrictions.
    • National Supercomputing Mission (2015): Jointly by DST & Ministry of Electronics and IT; implemented by C-DAC and IISc to build 70+ systems.
    • Major Systems (2025):
      • AIRAWAT-PSAI (C-DAC, Pune) – fastest in India (8.5 PF, global rank 136).
      • PARAM Siddhi-AI – global AI leader.
      • Pratyush (IITM, Pune) – weather & climate (3.76 PF).
      • Mihir (NCMRWF, Noida) – medium-range weather (2.57 PF).
      • PARAM Pravega (IISc, Bengaluru) – academic use (>3.3 PF).
    • Indigenous Push: PARAM Rudra (2024) with Indian servers and software stack.
    • Applications: Monsoon forecasting, Himalayan research, defence simulations, AI, drug design, materials science.
    • Current Capacity: 34+ supercomputers with ~35 petaflops; plans for exascale systems underway.
    [UPSC 2014] Param Padma, which was in the news recently, is:

    (a) a new Civilian Award instituted by the Government of India

    (b) the name of a supercomputer developed by India *

    (c) the name given to a proposed network of canals linking northern and southern rivers of India

    (d) a software programme to facilitate e-governance in Madhya Pradesh

     

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  • Biofuel Policy

    Is it feasible to blend Isobutanol and Diesel? 

    Prelims Only | Science Tech | Mains Paper 3: Awareness in various sc and tech fields

    Why in the News?

    The Union Transport Minister has announced that the Automotive Research Association of India (ARAI) is studying the feasibility of blending Isobutanol with Diesel after ethanol–diesel blending attempts failed.

    About Isobutanol:

    • What is it: A four-carbon alcohol (C₄H₁₀O), clear, flammable, and traditionally used as a solvent in paints, coatings, and chemical industries.
    • Production: Derived either from petrochemical processes or by fermenting sugarcane, molasses, and grains with engineered microbes.
    • Fuel Properties:
      • Higher energy density than ethanol, closer to diesel.
      • Lower hygroscopicity (absorbs less water), reducing rust and corrosion in engines and pipelines.
      • Higher flash point than ethanol, making it safer for storage and transport.

    Isobutanol–Diesel Blending and Benefits:

    • Compatibility: Unlike ethanol, isobutanol blends well with diesel without extra chemicals.
    • Economic Feasibility: Can be produced in existing ethanol plants with minor changes.
    • Agricultural Support: Creates demand for sugarcane by-products, helping farmers and managing sugar surplus.
    • Energy Security: Reduces reliance on imported fossil fuels and saves foreign exchange.
    • Global First: Pilot studies may make India the first country to use isobutanol–diesel blends.

    Challenges and Risks:

    • Combustion Issues: Has a lower cetane number than diesel, causing poor combustion quality.
    • Engine Risks: Can trigger diesel knock (uneven burning, power loss, engine damage).
    • Mixing Limitations: Blending challenges exist but can be partly solved with biodiesel addition.
    • Cost Factor: Requires additives to restore cetane number, increasing costs.
    • Blending Limit: Experts suggest ≤10% blending to avoid harm.
    • Pilot Phase: Testing will take ~18 months before possible large-scale adoption.
    [UPSC 2020] With reference to green hydrogen, consider the following statements:

    1. It can be used directly as a fuel for internal combustion.

    2. It can be blended with natural gas and used as fuel for heat or power generation.

    3. It can be used in the hydrogen fuel cell to run vehicles.

    How many of the above statements are correct?

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

     

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  • Air Pollution

    ‘Smog-eating’ photocatalytic coatings on roads to curb pollution

    Prelims Only | Enviro & Biodiversity | Mains Paper 3: Conservation, Environmental Pollution & Degradation, Eia

    Why in the News?

    Delhi government has announced a feasibility study to test photocatalytic coatings on roads, pavements, and public spaces to bring visible improvements in air quality.

    About Smog:

    • Overview: Combination of smoke and fog, forming smoky fog with soot, gases, and moisture.
    • Components: Includes soot particulates, sulphur dioxide (SO₂), nitrogen dioxide (NO₂), hydrocarbons, carbon monoxide (CO), and ozone (O₃).

    • Types:

      1. Sulfurous Smog (London Smog) – Caused by burning coal and sulphur-bearing fuels; worsened by dampness and particulates.
      2. Photochemical Smog (Los Angeles Smog) – Produced when NOₓ and hydrocarbons react under sunlight, forming ozone; appears as a brownish haze with respiratory effects.

    • Pollutants:

      1. Primary pollutants: Directly emitted (NO₂, SO₂, hydrocarbons).
      2. Secondary pollutants:  Formed via reactions (ozone, acid rain).
    • Haze vs. Smog: Haze = dry particles reducing visibility; Smog = pollutants with condensation.
    • Effects: Respiratory distress, eye irritation, plant damage, reduced visibility, carcinogenic risk, worsened by inversion layers and low rainfall.

    What are “Smog-Eating” Coatings?

    • Technology: Photocatalytic coatings using titanium dioxide (TiO₂) on roads, pavements, and public surfaces.
    • Function: Under sunlight, TiO₂ breaks down pollutants like NO₂ and hydrocarbons into less harmful compounds.
    • Advantages: Low-cost, stable, compatible with traditional materials, effective in depollution and creating self-cleaning surfaces.

    Delhi Government Plan

    • Plan: If viable, Cabinet proposal for citywide rollout at busy corridors, markets, and public spaces.
    • Evaluation: Study to assess cost-effectiveness, safety, and sustainability while shortlisting suppliers.
    • Strategic Context: Part of a 24×7, year-round environmental action plan using technology-driven interventions.
    [UPSC 2013] Photochemical smog is a resultant of the reaction among-

    (a) NO₂, O₃ and peroxyacetyl nitrate in the prescence of sunlight *

    (b) CO₂, O₂, and peroxyacetyl nitrate in the presence of sunlight

    (c) CO, CO₂, and NO₂ at low temperature

    (d) high concentration of NO₂, O₃ and CO in the evening

     

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  • Supreme Court cites Preamble to reject a plea

    Prelims OnlySC Judgements | Polity | Mains Paper 2: Indian Constitution – historical underpinnings, evolution, features, amendments, significant provisions and basic structure

    Why in the News?

    The Supreme Court rejected a plea against a religious leader inaugurating Mysuru Dasara, reminding that the Preamble upholds secularism, liberty, equality, and fraternity as core ideals of unity.

    Backgrounder:

    • The Karnataka government invited Banu Mushtaq, 2025 International Booker Prize winner, to inaugurate Mysuru Dasara Festival and perform the pooja.
    • A 2023 video resurfaced where she questioned the worship of Goddess Bhuvaneshwari, sparking controversy.
    • BJP and others opposed the invite, for her selective criticism of Hindu rituals and demanded withdrawal of the invite sent to her.

    Supreme Court’s Observations:

    • Secular Character: The Court reminded that the Preamble enshrines secularism, liberty, equality, and fraternity as unifying ideals.
    • State’s Neutrality: Dasara inauguration was a State event, not a private ritual. The State “maintains no religion of its own” (echoing M. Ismail Faruqui, 1994).
    • Key Precedents Recalled:
      • Kesavananda Bharati (1973) & S.R. Bommai (1994): Secularism = basic feature of the Constitution.
      • R.C. Poudyal (1994): Even before “secular” was inserted (42nd Amendment, 1976), the Constitution upheld equal treatment of all faiths.
      • Dr. Balram Singh v. UOI (2024): State can intervene to curb religious practices impeding equality & development.

    Preamble

    About the Preamble:

    • Nature: Introductory statement; reflects philosophy, vision, and objectives.
    • Origin: Based on Objectives Resolution (Nehru, 1946); adopted 1947.
    • Declarations: India as Sovereign, Socialist, Secular, Democratic, Republic ensuring Justice, Liberty, Equality, Fraternity.

    • Symbolism:

      1. Source of Authority: “We, the People of India.”
      2. Nature of State: Sovereign, Socialist, Secular, Democratic, Republic.

    Amendment of the Preamble:

    • Permissible: Supreme Court (Kesavananda Bharati, 1973) has held that Preamble is part of Constitution and can be amended without violating Basic Structure.
    • Only Amendment: 42nd Constitutional Amendment Act, 1976 (during Emergency).
      • Added “Socialist” and “Secular” between Sovereign and Democratic.
      • Added “Integrity” to Unity of the Nation.

    Key Judicial Pronouncements:

    • Berubari Union Case (1960): Preamble not a part of the Constitution; only a tool for interpretation.
    • Kesavananda Bharati Case (1973): Overruled Berubari; Preamble is part of the Constitution, embodies basic structure but cannot override provisions.
    • S.R. Bommai Case (1994): Secularism upheld as basic feature of the Constitution.
    • LIC of India Case (1995): Reaffirmed Preamble as integral, but non-justiciable (not enforceable in court).
    [UPSC 2020] The Preamble to the Constitution of India is:

    Options: (a) a part of the Constitution but has no legal effect

    (b) not a part of the Constitution and has no legal effect either

    (c) part of the Constitution and has the same legal effect as any other part

    (d) a part of the Constitution but has no legal effect independently of other parts*

     

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  • Electoral Reforms In India

    Registered Unrecognised Political Parties (RUPP)

    Prelims Only | Polity | Mains Paper 2: Representation Of People’s Act

    Why in the News?

    The Election Commission de-listed 474 Registered Unrecognised Political Parties (RUPP) for not contesting polls in six years, as part of its electoral clean-up drive.

    Delisting of Political Parties:

    • ECI’s Powers: Governed by Section 29A, RP Act, 1951.
      • No explicit power with ECI to de-register a party once registered, except for fraud or anti-Constitutional allegiance.
    • Judicial Interpretation:
      • INC vs Institute of Social Welfare (2002): SC ruled that ECI cannot de-register parties, only delist or declare inactive, which removes privileges but NOT their legal entity.

    About Registered Unrecognised Political Parties (RUPPs):

    • Constitutional Right: Right to form political associations is guaranteed under Article 19(1)(c).
    • Registration: RUPPs are political associations registered with the Election Commission of India (ECI) under Section 29A, Representation of the People Act, 1951.
    • Not recognised: As either State or National parties because they have not secured the required vote share or seats in past elections.
    • Privileges & Benefits:
      • Tax exemption under Section 13A, Income Tax Act, 1961.
      • Eligibility for common poll symbols during elections (under Symbols Order, 1968).
      • Can nominate up to 20 star campaigners.
    • Obligations:
      • Must contest elections periodically.
      • File annual audit accounts and contribution reports.
      • Disclose donations above ₹20,000.
      • Ensure no donations above ₹2,000 are taken in cash.
    • Issues: Many RUPPs exploit privileges without contesting elections, crowding out genuine contesting parties and confusing voters.

    What are Recognised Political Parties?

    • Types: Recognised parties are classified as National Parties or State Parties.
    • Privileges:
      • Exclusive reserved symbols.
      • Free copies of electoral rolls.
      • Broadcasting time on Doordarshan/All India Radio.
      • Consultation rights with ECI in election matters.
    • Recognition depends on vote share or seats won in Lok Sabha/Assembly elections.

    Conditions for Recognition:

    National Party State Party
    Secures 6% of valid votes in Lok Sabha/Assembly elections in any 4 or more states + wins 4 Lok Sabha seats. Secures 6% of valid votes in the state Assembly election + wins 2 Assembly seats.
    Wins 2% of Lok Sabha seats (currently 11 seats) from at least 3 states. Secures 6% of valid votes in the state’s Lok Sabha election + wins 1 Lok Sabha seat.
    Recognised as a State Party in 4 or more states. Wins 3% of Assembly seats or 3 seats (whichever is higher) in the state Assembly.
    — Wins 1 Lok Sabha seat for every 25 seats allotted to that state.
    — Secures 8% of total valid votes in the state’s Assembly or Lok Sabha election (added in 2011).

     

    [UPSC 2001] Consider the following statements regarding the political parties in India:

    1. The Representation of the People Act, 1951 provides for the registration of political parties.

    2. Registration of political parties is carried out by the Election Commission.

    3. A national level political party is one which is recognised in four or more States.

    4. During the 1999 general elections, there were six National and 48 State level parties recognised by the Election Commission.

    Options: (a) I, II and IV (b) I and III (c) II and IV (d) I, II, III and IV*

     

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  • ISRO Missions and Discoveries

    Gaganyaan Analog Experiments (Gyanex)

    Prelims Only | Science Tech | Mains Paper 3: Achievements Of Indians In S&T

    Why in the News?

    Gyanex (Gaganyaan Analog Experiments) ground-based astronaut simulations are being conducted by ISRO with ICMR and Institute of Aerospace Medicine, Bengaluru, to prepare Indian astronauts for the 2027 Gaganyaan mission.

    What are Gaganyaan Analog Experiments (Gyanex)?

    • Purpose: India’s first systematic programme in space medicine and astronaut psychology, preparing protocols for Gaganyaan and future missions like space stations and lunar expeditions.
    • Setup: Conducted at the Institute of Aerospace Medicine, Bengaluru, with ICMR support. Astronauts and defence personnel live in a mock spacecraft simulator under confinement, consuming DRDO-developed space food.
    • Activities: Strict space-like routines involving scientific experiments, resource management, schedules, and limited supplies. Tests also cover communication with time-delay simulation.
    • Gyanex-1: Group Captain Angad Pratap and two others confined for 10 days; completed 11 experiments on psychology, biomedicine, and communications.
    • Microgravity Simulation: Weightlessness cannot be reproduced on Earth; instead, 7-day bed-confinement at 6° head tilt studied microgravity effects.
    • Other Indian Analog Missions:
      • Ladakh Human Analog Mission (Nov 2024): Simulated interplanetary survival in cold, barren terrain.
      • HOPE Habitat at Tso Kar (Aug 2025): Tested 8 m habitat + 5 m utility module in Mars-like conditions of low pressure, saline permafrost, and high UV radiation.

    About Gaganyaan Mission:

    • Overview: India’s first human spaceflight mission, initiated in 2007, to send 3 astronauts into Low Earth Orbit (400 km) for 3 days, followed by Arabian Sea splashdown.
    • Rocket: Human-Rated LVM3 (HLVM3), adapted from GSLV Mk3, certified in 2025 for safe human use.
    • Significance: India to become the 4th nation (after US, Russia, China) with crewed spaceflight capability.
    • Latest Timeline (as of Sept 2025):
      • Dec 2025: First uncrewed mission (G1) with humanoid Vyommitra.
      • 2026: Two more uncrewed flights for life-support, avionics, and escape tests.
      • Early 2027: First crewed mission – 3 astronauts in orbit for 3 days.
    • Progress so far:
      • 80–85% development complete: avionics, parachutes, crew safety systems validated.
      • Integrated Air Drop Test (Aug 2025): Confirmed crew module deceleration.
      • Crew Escape System: Multiple ground and flight tests successful.
      • Recovery: Indian Navy and Australian Space Agency conducting splashdown drills.
      • Four IAF test pilots shortlisted: Shubhanshu Shukla, Prasanth Balakrishnan Nair, Angad Pratap, Ajit Krishnan.
      • All trained in Russia, now in advanced Indian training. Final crew of three will be chosen for maiden flight.
    [UPSC 2016] Consider the following statements: The Mangalyaan launched by ISRO

    1. is also called the Mars Orbiter Mission

    2. made India the second country to have a spacecraft orbit the Mars after USA

    3. made India the only country to be successful in making its spacecraft orbit the Mars in its first attempt.

    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

     

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