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

Type: Prelims Only

  • Indian Air Force Updates

    [pib] Exercise Udara Shakti, 2024

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Exercise Udara Shakti, 2024

    Why in the News?

    The recent edition of Exercise Udara Shakti was recently concluded in Malaysia.

    About Exercise Udara Shakti

    • Udara Shakti is a bilateral air force exercise conducted between India and Malaysia.
    • The primary objective of this exercise is to enhance military cooperation, improve mutual understanding, and share operational expertise.

    Features of the Exercise  

    • Both India and Malaysia deploy their Sukhoi-30 fighter jets for the exercise, facilitating direct comparison and operational cooperation.
    • A distinctive feature of this initiative is the HOP (Hands-On Participation) Exercise, where pilots from both nations swap aircraft.
    • The Subject Matter Expert Exchange (SMEE) component focuses on sharing knowledge and skills in aviation and engineering specific to the Sukhoi-30 aircraft.

    PYQ:

    [2024] Which of the following statements about ‘Exercise Mitra Shakti-2023’ are correct?

    1. This was a joint military exercise between India and Bangladesh.
    2. It commenced in Aundh (Pune).
    3. Joint response during counter-terrorism operation was a goal of this operation.
    4. Indian Air Force was a part of this exercise.

    Select the answer using the code given below :

    (a) 1, 2 and 3

    (b) 1, 2 and 4

    (c) 1, 3 and 4

    (d) 2, 3 and 4

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

    Long Range Glide Bomb (LRGB) ‘GAURAV’

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Long Range Glide Bomb (LRGB) ‘GAURAV’

    Why in the News?

    • The Defence Research and Development Organisation (DRDO) has successfully conducted the maiden flight test of the long-range glide bomb (LRGB) Gaurav’.
      • The test was carried out from a Su-30 MK-I fighter jet of IAF.

    About LRGB GAURAV

    • LRGB Gaurav is a 1,000 kg class long-range glide bomb developed by the DRDO.
    • It is air-launched from a Su-30 MK-I fighter jet of the Indian Air Force.
    • The bomb is designed and developed indigenously by the Research Centre Imarat (RCI), Hyderabad.
    • Adani Defence and Bharat Forge participated as Development cum Production Partners in the Gaurav project.
    • Key Features:
      • It uses a hybrid navigation system that combines Inertial Navigation System (INS) with Global Positioning System (GPS) data for highly accurate targeting.
      • The glide bomb is capable of hitting targets at long distances, although the exact range is not publicly disclosed.
      • Gaurav enhances India’s precision strike capabilities, allowing for significant impact on various target types with reduced risk to aircraft.

    PYQ:

    [2014] Which reference to Agni-IV Missile, which of the following statements is/are correct?

    1. It is a surface-to-surface missile.

    2. It is fuelled by liquid propellant only.

    3. It can deliver one-tonne nuclear warheads about 7500 km away.

    Select the correct answer using the code given below.

    (a) 1 only

    (b) 2 and 3 only

    (c) 1 and 3 only

    (d) 1, 2 and 3

  • Solar Energy – JNNSM, Solar Cities, Solar Pumps, etc.

    [pib] Operational Guidelines for Implementation of ‘Model Solar Village’

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Model Solar Village

    Why in the news?

    • The Ministry of New and Renewable Energy has issued operational guidelines for the Implementation of ‘Model Solar Village’ under PM-Surya Ghar Muft Bijli Yojana.
      • The centre recently allocated ₹800 crore for the same.

    About PM Surya Ghar Muft Bijli Yojana

    Description
    Purpose To provide 300 units of free electricity per month to beneficiaries through an investment of ₹75,000 crores.
    Deadline Extended the deadline from 2022 to 2026.
    Announcement Initially announced in an Interim Budget 2024-25 speech by the Finance Minister.
    Target Aimed to light up 1 crore households.
    Implementation Urban Local Bodies and Panchayats are incentivised to promote rooftop solar systems.
    Financial Support
    Average Monthly Electricity Consumption (units) Suitable Rooftop Solar Plant Capacity Subsidy Support
    0-150 1-2 kW ₹ 30,000  to ₹ 60,000
    150-300 2-3 kW ₹ 60,000  to ₹ 78,000
    > 300 Above 3 kW ₹ 78,000

     

    Features of the ‘Model Solar Village’ Initiative:

    Details
    Comprehensive Solarization
    • Solarize all households and public areas with home lighting, water systems, pumps, and streetlights.
    • Seeks to create one Model Solar Village per district.
    Implementing Agency State Renewable Energy Development Agency (SREDA) or another entity nominated by the State/UT Government will implement the scheme.
    24×7 Solar-Powered Village Develop villages powered entirely by solar energy, promoting self-reliance in meeting energy needs.
    Central Financial Assistance (CFA)
    • ₹1 crore grant per village based on a Detailed Project Report (DPR) by the Implementing Agency.
    • The total financial allocation for this initiative is ₹800 crore.
    Eligibility Criteria
    • Revenue village with a population over 5,000 (or 2,000 in special category states).
    • Based on installed renewable energy capacity, overseen by the District Level Committee (DLC) 6 months after the declaration.
    Fund Disbursement 40% on the award of works, 40% after completion, 20% after 6 months of operation.

     

    PYQ:

    [2018] With reference to solar power production in India, consider the following statements:

    1. India is the third largest in the world in the manufacture of silicon wafers used in photovoltaic units.

    2. The solar power tariffs are determined by the Solar Energy Corporation of India.

    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

  • Russian Invasion of Ukraine: Global Implications

    Ukraine’s Kursk Operation in Russia

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Kursk Operation

    Why in the News?

    Ukrainian troops have advanced up to 35 kilometers into Russian territory in the Kursk region. 

    What is the Kursk Operation?

    • The Kursk operation marks a significant escalation in the ongoing conflict between Ukraine and Russia.
    • The operation has been characterized by intense fighting, with reports of casualties.

    About Kursk Region:

    • It is located in the western part of Russia, bordering Ukraine to the southwest.
    • The region holds historical significance Battle of Kursk as the site of the, which took place from July to August 1943 and is recognized as the largest tank battle in history during World War II.
    • The Kursk region is rich in iron ore, which has led to substantial mining operations in the area.
    • The region experiences a continental climate, with cold winters and warm summers.

     

    Significance of the Kursk Operation for Ukraine

    • Strategic Leverage: Strengthens Ukraine’s position in future negotiations by capturing Russian territory for potential land exchanges.
    • Buffer Zone Creation: Enhances security for contested Ukrainian areas by establishing a protective buffer on Russian soil.
    • Military Diversion: Forces Russia to redeploy troops, weakening their main front lines and easing pressure on Ukrainian forces.

    PYQ:

    [2023] Consider the following pairs:

    Regions often mentioned in news Reason for being in news
    1. North Kivu and Ituri War between Armenia and Azerbaijan
    2. Nagorno-Karabakh Insurgency in Mozambique
    3. Kherson and Zaporizhzhia Dispute between Israel and Lebanon

    How many of the above pairs are correctly matched?

    (a) Only one

    (b) Only two

    (c) All three

    (d) None

  • Railway Reforms

    What is KAVACH Collision Avoidance System (CAS)?

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: KAVACH Collision Avoidance System (CAS)

    Why in the News?

    Indian Railways expects to launch Kavach CAS on Mumbai-Delhi-Kolkata routes by March 2025.

    About Kavach Train Collision Avoidance System (TCAS)

    Details
    Development
    • Development started in 2011 by Indian Railways and Research Designs & Standards Organisation (RDSO).
    • Key developer: B. Rajaram, known for the Skybus Metro system.
    • Field trials began in 2014, and final approval was granted in 2019.
    Safety Parameters Certified for Safety Integrity Level 4 (SIL-4) operations
    Working Mechanism
    • Components: Trackside RFID tags, onboard locomotive equipment, radio infrastructure.
    • Functionality: Real-time monitoring, driver alerts, and automatic braking to prevent collisions.
    • Data Inputs: Location, direction, time.
    • Event Recorders: Retain records for post-incident analysis.
    Collision Prevention
    • Alert Mechanism: Alerts the locomotive pilot if a ‘red signal’ is missed.
    • Automatic Braking: If speed exceeds 15 kmph after a red signal, Kavach applies brakes to halt the train.
    Issues
    • High Cost: ₹50 lakh per kilometer for deployment.
    • Low Coverage: Covers only 1,500 kilometers out of the total 68,000-kilometer rail network (as of November 2023).

    How does CAS work in ships and aircraft?

    Key Systems Functions
    Ships AIS (Automatic Identification System) Sends and receives data on location, speed, and direction between ships and land-based stations.
    LRIT (Long Range Identification and Tracking)
    • Requires ships to report location, time, and equipment every 6 hours to authorities.
    • Data shared with contracting governments and rescue operators via International LRIT Data Exchange.
    Aircraft Transponders Respond to radio-frequency pings to build a 3D view of surrounding air traffic.
    Alerts and Resolution Issues alert if another aircraft is within 48 seconds (traffic advisory) or 30 seconds (resolution) of a collision.
    Radar Altimeters and Obstacle Detection Monitors distance to the ground and alerts pilots about tall obstacles like towers.

     

    PYQ:

    [2015] With reference to bio-toilets used by the Indian Railways, consider the following statements:

    1. The decomposition of human waste in the biotoilets is initiated by a fungal inoculum.
    2. Ammonia and water vapour are the only end products in this decomposition which are released into the atmosphere.

    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

  • ISRO Missions and Discoveries

    August 23rd declared as National Space Day

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: National Space Day

    Why in the News?

    The Centre has officially declared August 23rd as “National Space Day” in honor of the Chandrayaan-3 Mission’s historic achievement.

    About the National Space Day:

    • It is set to be celebrated on August 23rd every year.
    • It marks the successful landing of the Chandrayaan-3 mission’s Vikram Lander and Pragyan Rover on the Moon.
    • Theme for 2024:
      • Touching Lives while Touching the Moon: India’s Space Saga” highlights space exploration’s impact on society and technology.
    • Significance:
      • India became the fourth country to land on the Moon and the first to land near the Moon’s southern polar region.

    About Chandrayaan-3 Mission:

    Details
    Launch
    • India’s third lunar mission, second attempt at soft landing on the Moon.
    • Launched on July 14, 2023. Landed on August 23.
    Landing Site Near the Lunar South Pole (Coordinates: 69.373°S 32.319°E)
    Mission Objectives
    • Demonstrate safe and soft landing on the Moon.
    • Rover mobility on lunar surface.
    • Conduct in-situ scientific experiments.
    Components
    • Propulsion Module: Carries lander and rover to 100 km lunar orbit; includes SHAPE payload.
    • Lander Module (Vikram): Instruments: ChaSTE, ILSA, Langmuir Probe, Laser Retroreflector Array.
    • Rover Module (Pragyan): Instruments: APXS, LIBS.
    Major Findings
    • Lunar Surface Temperature: Recorded up to 70°C, higher than expected.
    • Elemental Composition: Sulphur, aluminum, calcium, iron, chromium, titanium, manganese, silicon, and oxygen confirmed.
    Landing Site Name Named by PM as ‘Shiv Shakti’ (Sanctioned by IAU as “Statio Shiv Shakti”).

     

    PYQ:

    [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 very first attempt

    Which of the statements given above is/are correct?

    (a) 1 only

    (b) 2 and 3 only

    (c) 1 and 3 only

    (d) 1, 2 and 3

  • Disasters and Disaster Management – Sendai Framework, Floods, Cyclones, etc.

    What is the Nankai Trough?  

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Nankai Trough

    Why on the News?

    Japanese authorities have warned its citizens of a ‘megaquake’ and large tsunamis along the Nankai Trough.

    What is the Nankai Trough?

    • The Nankai Trough is an extensive subduction zone, nearly 900 km long.
    • It is the place of collision of the Eurasian Plate over the Philippine Sea Plate.
    • This trough has a history of producing large earthquakes approximately every 100 to 150 years.
    • The most recent Nankai Trough quake happened in 1946 with magnitude 8.0 tremor and 6.9 metre tsunami, killing 1,330 people.

    Potential for a Megaquake: 

    • Japan’s researchers estimated in January 2022 that there is a roughly 70% chance of a magnitude 8-9 megaquake striking the Nankai Trough within next 30 years.
    • Such a quake could affect a vast region stretching from central Shizuoka, about 150 km south of Tokyo, to southwestern Miyazaki.

    PYQ:

    [2014] Explain the formation of thousands of islands in Indonesian and Philippines archipelagos.

  • Global Geological And Climatic Events

    What is the Perseid Meteor Shower?

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Perseid Meteor Shower

    Why in the News?

    The Perseid meteor shower, which began in July, is currently at its peak activity from August 11 to 13, 2024.

    About Perseid Meteor Shower

    Details
    Origin Named after the constellation Perseus, from which the meteors appear to originate.
    Cause Caused by debris left behind by Comet Swift-Tuttle as it orbits the Sun.
    How It Occurs
    • Consists of ice, rock, and dust particles shed by Comet Swift-Tuttle.
    • Earth passes through this debris field annually between mid-July and late August.
    • Particles enter Earth’s atmosphere at around 214,000 km/h, causing them to heat up and create bright streaks of light.
    Discovery The connection between the Perseid meteor shower and Comet Swift-Tuttle was established in 1862 by Lewis Swift and Horace Tuttle.
    Historical Observations Observed for centuries, with records dating back to ancient Chinese, Japanese, and European civilizations.
    Impact of Earth’s Gravity
    • Earth’s gravity pulls particles from the debris field, causing them to enter the atmosphere.
    • Larger particles can create fireballs—bright meteors that are more intense and last longer.

    Note: In the 1990s, scientists feared comet Swift-Tuttle might hit Earth or the Moon in 2126, but later calculations confirmed safety for two millennia.

    PYQ:

    [2011] What is the difference between asteroids and comets?

    1. Asteroids are small rocky planetoids, while comets are formed of frozen gases held together by rocky and metallic material.
    2. Asteroids are found mostly between the orbits of Jupiter and Mars, while comets are found mostly between Venus and Mercury.
    3. Comets show a perceptible glowing tail, while asteroids do not.

    Which of the statements given above is/are correct?

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

  • Wildlife Conservation Efforts

    Neelakurinji included in Red List of threatened species   

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Neelakurinji

    Why in the News?

    Neelakurinji has been categorized as Vulnerable in the IUCN Red List of threatened species for the first time under Criteria A2c.

    About Neelakurinji (Strobilanthes kunthiana)

    Details
    Blooming Cycle
    • Blooms once every 12 years.
    • Some bloom once every 7 years.
    Physical Description
    • Shrub that can grow up to 3 meters in height.
    • Vibrant purplish-blue flowers bloom synchronously over large areas.
    • Named after Kunthi River which flows through Kerala’s Silent Valley National Park.
    Habitat and Distribution
    • Endemic to high-altitude Shola grasslands of the Western Ghats.
    • Found at elevations between 1,340 to 2,600 meters.
    • Key regions: Nilgiris, Munnar, Palani-Kodaikanal, Anamalai mountains, and some isolated populations in the Eastern Ghats (Yercaud, Shevaroy Hills).
    Historical Blooming Records Documented blooming in 1838, 1850, 1862, 1874, 1886, 1898, 1910, 1922, 1934, 1946, 1958, 1970, 1982, 1994, 2006, and 2018.
    Cultural Significance
    • Nilgiri Hills named after its purplish-blue flowers.
    • Paliyan tribal people of Tamil Nadu used it to calculate their age.
    Ecological Importance
    • Critical for the biodiversity of montane grasslands.
    • Provides nectar for pollinators during mass flowering.

     

    PYQ:

    [2011] The “Red Data Books” published by the International Union for Conservation of Nature and Natural Resources (IUCN) contain lists of

    1. Endemic plant and animal species present in the biodiversity hotspots.
    2. Threatened plant and animal species.
    3. Protected sites for conservation of nature and natural resources in various countries.

    Select the correct answer using the codes given below:

    (a) 1 and 3

    (b) 2 only

    (c) 2 and 3

    (d) 3 only

  • Industrial Sector Updates – Industrial Policy, Ease of Doing Business, etc.

    Diamond Imprest Licence

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Diamond Imprest Licence

    Why in the News?

    • Union Minister for Commerce and Industry has introduced Diamond Imprest Licence at the 40th edition of the India International Jewellery Show (IIJS) 2024.
      • The event was organized by the Gem & Jewellery Export Promotion Council (GJEPC).

    What is the Diamond Imprest Licence?

    • The Diamond Imprest Licence is a regulatory framework introduced by the Indian government to facilitate the import of diamonds for exporters, particularly benefiting Micro, Small, and Medium Enterprises (MSMEs) in the diamond industry.
    • It will allow Indian diamond exporters who meet a certain export turnover threshold to import up to 5% of their average export turnover over the preceding three years.
    • This policy aims to create a level-playing field for MSME diamond exporters, enabling them to compete more effectively with larger industry peers.

    About the Gem & Jewellery Export Promotion Council (GJEPC )

    Details
    Establishment
    • Established in 1966 by the Ministry of Commerce and Industry, Government of India.
    • Granted an autonomous status in 1998.
    Headquarters
    • Mumbai, India
    • Regional offices in New Delhi, Kolkata, Chennai, Surat, Jaipur
    Membership Represents almost 7,000 exporters from across India.
    Role and Functions
    • Promotes exports of gems and jewellery
    • Presents industry issues to the government and recommends policy interventions.
    Common Facility Centers (CFCs) Established in Amreli, Visnagar, Palanpur, and Junagadh in Gujarat.
    Services include planning, laser sawing, and cutting facilities to process diamonds.
    Awards Organizes premier jewellery design competitions and awards, celebrating creativity and innovation in jewellery design.
    Key Events Hosts the Design Inspirations seminar annually in Mumbai, educating jewellers, designers, and students about upcoming trends in India, Europe, and the US.
    Educational Institutes Operates 7 educational institutes across five cities, including the Indian Institute of Gems & Jewellery (IIGJ) in Mumbai, Jaipur, Delhi, Varanasi, and Udupi.
    Gemmological Laboratories
    • Gemmological Institute of India (GII), Mumbai: Established in 1971, focusing on gemological training, research, and certification.
    • Gem Testing Laboratory, Jaipur: Specializes in grading and certifying colored gemstones.
    • Indian Gemological Institute, New Delhi: Provides gem testing and certification services, particularly for the North Indian market.

     

    PYQ:

    [2018] Which one of the following foreign travelers elaborately discussed about diamonds and diamond mines of India?

    (a) Francois Bernier

    (b) Jean-Baptiste Tavernier

    (c) Jean de Thevenot

    (d) Abbe Barthelemy Carre