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GS Paper: GS3

  • National Innovations in Climate Resilient Agriculture NICRA

    Why in News

    Government released data under National Innovations in Climate Resilient Agriculture NICRA showing 310 districts vulnerable to climate change and expansion of climate resilient farming technologies across India.

    About NICRA

    • Implemented by Indian Council of Agricultural Research ICAR
    • Objective: Climate resilient agriculture and food security
    • Focus:
      • Climate risk assessment
      • Adaptation technologies
      • Farmer capacity building
      • Climate resilient crop varieties

    Key Findings

    Climate Risk Assessment

    • Total districts assessed: 651 agricultural districts
    • Vulnerable districts: 310 districts
      • Very high vulnerability: 109 districts
      • High vulnerability: 201 districts
    • Assessment based on IPCC protocols

    District Agriculture Contingency Plans

    • Prepared for 651 districts
    • Aim:
      • Handle extreme weather
      • Recommend climate resilient crops
      • Provide location specific farming practices

    Climate Resilient Villages

    • 448 Climate Resilient Villages
    • Located in 151 vulnerable districts
    • Implemented through Krishi Vigyan Kendras KVKs

    Crop Variety Development

    • 2900 crop varieties released during 2014 to 2024
    • 2661 varieties climate tolerant
    • Resistant to: Drought, Flood, Heat, and Pests

    Role of Krishi Vigyan Kendras

    • Total KVKs: 731
    • Farmers trained: 18.56 lakh
    • Promote climate resilient technologies

    Use of Artificial Intelligence in Agriculture

    Kisane Mitra AI Chatbot

    • Voice based AI
    • Supports 11 languages
    • Handles 20,000 queries daily
    • Total responses: 95 lakh queries

    Bharat VISTAAR Platform

    • AI powered advisory platform
    • Provides:
      • Weather updates
      • Market rates
      • Scheme information
    • 24×7 AI assistant Bharati
    • Currently supports Hindi and English

    National Pest Surveillance System

    • Uses AI and Machine Learning
    • Covers:
      • 61 crops
      • 400 pests
    • Used by 10,000 extension workers

    Kisan Sarathi Platform

    • Digital advisory platform
    • Registered farmers: 2.75 crore
    • Coverage: 3.43 lakh villages
    [2021] In the context of India’s preparation for Climate-Smart Agriculture, consider the following statements: 1 The ‘Climate-Smart Village’ approach in India is a part of a project led by the Climate Change, Agriculture and Food Security (CCAFS), an international research program. 2 The project of CCAFS is carried out under the Consultative Group on International Agricultural Research (CGIAR), headquartered in France. 3 The International Crops Research Institute for the Semi-Arid Tropics (ICRISAT) in India is one of the CGIAR’s research centers. Which of the statements given above are correct? (a) 1 and 2 only (b) 2 and 3 only (c) 1 and 3 only (d) 1, 2, and 3
  • Assam to Launch AssamSAT: First State Level Satellite Constellation for Flood Monitoring

    Why in News

    Assam has become the first Indian State to float a tender for earth observation satellites to monitor floods, borders and environmental threats.

    AssamSAT Project

    • Mission Name: AssamSAT
    • Announced in: Assam Budget 2025-26
    • Issued by: Assam Science Technology and Environment Council
    • Type: Earth observation satellite constellation
    • Orbit: Low Earth Orbit

    Key Features

    • At least five satellites to be deployed
    • Private companies invited to: Design, Build, Launch, Operate and Transfer satellites to State ownership

    Objectives

    1. Flood Monitoring

    • Monitor Brahmaputra valley floods
    • Real time flood mapping
    • Faster disaster response

    2. Surveillance

    • Monitor chars or river islands
    • Track infiltration along Bangladesh border
    • Improve security in remote regions
    • Track: Poaching in Kaziranga National Park, Drug trafficking routes and Land changes
    [2019] For the measurement/estimation of which of the following are satellite images/remote sensing data used? 
    1 Chlorophyll content in the vegetation of a specific location 
    2 Greenhouse gas emissions from rice paddies of a specific location 
    3 Land surface temperatures of a specific location 
    Select the correct answer using the code given below: (a) 1 only (b) 2 and 3 only (c) 3 only (d) 1, 2 and 3
  • Centre unveils policy to tackle terror threats

    Why in the News?

    The Union Home Ministry has unveiled India’s first National Counter Terrorism Policy and Strategy (PRAHAAR). The policy seeks to criminalise all terrorist acts, disrupt terror financing, deny logistical support, and strengthen coordination across Central and State agencies. The policy marks a structural shift from reactive counter-terror responses to an integrated, ecosystem-based national security framework covering land, air, water, cyber, and financial domains. The move assumes significance amid rising cross-border terrorism, drone-enabled attacks, and digital radicalisation.

    What is the rationale behind this policy?

    1. The move follows the April 22, 2025 Pahalgam terror incident, which exposed vulnerabilities in intelligence coordination and emerging drone misuse. 
    2. Previously, counter-terror responses were largely reactive and dispersed across agencies without a single doctrinal framework. 
    3. The policy is significant because it integrates prevention, detection, prosecution, and financial disruption under one strategy, covering both state and non-state actors. 
    4. It also formally recognises technological threats such as encrypted platforms, cryptocurrency, and dark web logistics, marking a shift from traditional cross-border terror focus to hybrid and networked terror ecosystems.

    What is the doctrinal architecture of PRAHAAR: Pillar-wise Breakdown

    1. P-Prevention of Terror Attacks; Focus: Intelligence-led, proactive neutralisation. It includes
      1. Intelligence Primacy: Intelligence-guided counter-terror approach; threat neutralisation before execution.
      2. MAC & JTFI Framework: Real-time intelligence aggregation through Multi Agency Centre (MAC) and Joint Task Force on Intelligence under IB.
      3. OGW Disruption: Systematic dismantling of Over Ground Worker logistics and recruitment networks.
      4. Cyber Disruption: Targeting online propaganda, recruitment modules, encrypted communication misuse.
      5. Critical Infrastructure Security: Protection of power, railways, aviation, ports, defence, space, atomic energy sectors.
      6. Border Surveillance: Technological tools deployed across land, air and maritime frontiers.
      7. Core Shift: From reactive policing to preventive security architecture.
    2. R-Responses (Swift & Proportionate); Focus: Layered operational response model. It includes:
      1. Local Police as First Responder: Federal structure respected; decentralised operational response.
      2. State ATS & Special Counter terrorism (CT) Units: Specialised anti-terror forces in vulnerable States.
      3. NSG as National Nodal Force: National Security Guard for major attacks and capacity building.
      4. SOP-Based Coordination: Standard Operating Procedures for apex-level coordination via MHA.
      5. CAPF Deployment: Central Armed Police Forces assisting States in counter-terror operations.
      6. High Conviction Emphasis: NIA-led investigations ensuring deterrence through prosecution.
      7. Core Shift: Structured escalation matrix for response.
    3. A-Aggregating Internal Capacities; Focus: Whole-of-Government synergy. It includes:
      1. Modernisation Mandate: Continuous upgradation of weapons, surveillance tools, training modules.
      2. Standardisation Across States: Uniform anti-terror structures, investigation methodologies.
      3. BPR&D Role: Training and best practice dissemination for State Police & CAPFs.
      4. NSG Urban Combat Training: Specialised combat readiness for metropolitan threats.
      5. Resource Gap Identification: Institutional capacity audit and correction
      6. Core Shift: Elimination of silo-based security functioning.
    4. H-Human Rights & Rule of Law Based Processes; Focus: Constitutional legitimacy. It includes:
      1. Legal Framework Anchoring: The Unlawful Activities (Prevention) Act (UAPA), 1967, as principal law; supported by BNS 2023, BNSS 2023, BSA 2023, PMLA 2002, Arms Act 1959, Explosives Act 1908.
      2. Judicial Oversight: Multi-tier judicial review up to the Supreme Court.
      3. Human Rights Act 1993: Protection against rights violations.
      4. International Commitments: Adherence to Universal Declaration of Human Rights (UDHR) 1948 and International Covenant on Civil and Political Rights (ICCPR).
      5. Due Process Safeguards: Appeals and legal redressal mechanisms ensured.
      6. Core Shift: Security operations embedded within constitutional democracy.
    5. A-Attenuating Conditions Conducive to Terrorism; Focus: Addressing root drivers. It includes:
      1. Graded De-radicalisation: Calibrated intervention based on degree of radicalisation.
      2. Community Engagement: Involvement of religious leaders, NGOs, moderate preachers.
      3. Prison Monitoring: Preventing indoctrination within correctional facilities.
      4. Youth Engagement: Constructive programs to prevent extremist recruitment.
      5. Socio-Economic Interventions: Addressing poverty, unemployment, housing and education gaps.
      6. Women & Youth Empowerment Schemes: Scholarships and loan support to reduce vulnerability.
      7. Core Shift: Terrorism treated as socio-psychological and developmental challenge, not merely law-and-order issue.
    6. A-Aligning & Shaping International Efforts; Focus: Transnational cooperation. It includes:
      1. Mutual Legal Assistance Treaties (MLATs) & Extradition Treaties: Legal cooperation for evidence sharing and fugitive return.
      2. Joint Working Groups (JWG): Bilateral intelligence engagement platforms.
      3. UN Designation Support: Pursuit of global terrorist listings.
      4. Agency-to-Agency Cooperation: Intelligence sharing with foreign counterparts.
      5. Global ICT Misuse Countering: Addressing terrorist exploitation of digital ecosystems.
      6. Core Shift: Counter-terror extended beyond national jurisdiction.
    7. R-Recovery & Resilience (Whole-of-Society Approach); Focus: Post-attack stabilisation. It includes:
      1. Public-Private Partnership: Private sector participation in recovery.
      2. Civil Administration Leadership: Reconstruction and restoration.
      3. Psychological Rehabilitation: Doctors, psychologists, civil society involvement.
      4. Community Reintegration: Social healing and confidence rebuilding.
      5. Preventive Reinforcement: Strengthened security measures post-incident.
      6. Core Shift: From counter-terror to societal resilience model.

    How Does the Policy Restructure India’s Counter-Terror Governance Framework?

    1. National Framework Institutionalisation: Establishes India’s first unified counter-terror doctrine integrating Centre-State coordination.
    2. Ecosystem Approach: Targets not only terrorists but also financiers, handlers, recruiters, and facilitators.
    3. Multi-Domain Coverage: Addresses threats across land, air, water, cyber, and financial systems.
    4. Inter-Agency Coordination: Strengthens operational synergy among intelligence, enforcement, and financial monitoring agencies.
    5. Legal Backing: Aims to criminalise all forms of terrorist support infrastructure.

    How Does the Policy Address Cross-Border and State-Sponsored Terrorism?

    1. Recognition of Proxy Warfare: Identifies state and non-state actors targeting India through terrorism.
    2. Cross-Border Networks: Acknowledges foreign handlers coordinating logistics and recruitment.
    3. Global Jihadist Linkages: Notes influence of outfits such as Al-Qaeda and IS in inciting lone-wolf or cell-based violence.
    4. Punjab & J&K Linkages: Recognises drone-based smuggling of arms and narcotics across borders.
    5. Transnational Cooperation: Emphasises international collaboration to counter financing and safe havens.

    How Does the Policy Respond to Emerging Technological Threats?

    1. Drone Regulation: Identifies misuse of drones for smuggling arms and reconnaissance.
    2. Encrypted Platforms: Flags encrypted messaging apps as tools for coordination.
    3. Cryptocurrency Monitoring: Recognises dark web and crypto wallets as terror-financing channels.
    4. Cyber Radicalisation: Targets online propaganda and recruitment networks.
    5. Digital Forensics: Strengthens use of technical intelligence in disruption operations.

    How Does the Policy Strengthen Preventive and Pre-Emptive Mechanisms?

    1. Pre-Emptive Intelligence: Enhances predictive threat assessment models.
    2. Community Engagement: Involves civil society and religious leaders to counter radicalisation.
    3. Youth De-Radicalisation: Focuses on preventing extremist recruitment among youth.
    4. Capacity Building: Improves training of state police forces in counter-terror techniques.
    5. Chemical, Biological, Radiological, Nuclear, and high-yield Explosives (CBRNE) Preparedness: Recognises risks of Chemical, Biological, Radiological, Nuclear, and Explosive materials.

    How Does the Policy Reinforce Institutional Accountability and Federal Balance?

    1. Central-State Synergy: Promotes coordinated response while respecting federal structure.
    2. Role of NIA: Strengthens investigative mandate of the National Investigation Agency in major terror cases.
    3. Legal Standardisation: Ensures uniform procedures across states.
    4. Process Standardisation: Encourages similar and synergistic response frameworks.
    5. Parliamentary Oversight Potential: Opens scope for legislative scrutiny of implementation effectiveness.

    What Are the Regulatory and Legal Implications of the Policy?

    1. Criminalisation Framework: Broadens scope to include logistical and financial support.
    2. Financial Disruption: Targets funding channels through financial intelligence units.
    3. Safe Haven Denial: Focuses on dismantling recruitment and shelter networks.
    4. Surveillance Expansion: Raises concerns on balancing security with privacy rights under Article 21.
    5. Counter-Terror Cell Coordination: Enhances role of specialised Counter Terrorism Cells.

    Conclusion

    The National Counter Terrorism Policy marks a transition from fragmented counter-terror responses to a structured, ecosystem-based security doctrine. Its effectiveness will depend on inter-agency coordination, federal cooperation, technological capability, and safeguards against misuse. Institutional balance between national security and civil liberties remains central to sustainable implementation.

    PYQ Relevance

    [UPSC 2023] Give out the major sources of terror funding in India and the efforts being made to curtail these sources. In the light of this, also discuss the aim and objective of the ‘No Money for Terror (NMFT)’ Conference recently held at New Delhi in November 2022.

    Linkage: This question directly maps to GS Paper 3 (Internal Security), particularly terror financing, money laundering, and transnational security cooperation. It links with India’s PRAHAAR doctrine and NMFT initiative, highlighting the financial disruption pillar of counter-terror strategy and global coordination against terror funding networks.

  • Smog-Eating Photocatalytic Coating

    Why in the News

    • The Delhi Government and IIT Madras are collaborating to study smog eating photocatalytic coatings on roads to reduce urban air pollution.

    What is Smog-Eating Photocatalytic Coating

    • A special coating applied on roads and buildings
    • Designed to neutralize harmful pollutants in the air
    • Targets:
      • Nitrogen dioxide (NO₂)
      • Volatile hydrocarbons
      • Other toxic gases

    Compound Used

    Titanium Dioxide (TiO₂)

    • Most commonly used material
    • Advantages:
      • Low cost
      • Chemically stable
      • Durable
      • Compatible with construction materials

    Working Mechanism

    Photocatalysis Process

    • Sunlight activates Titanium dioxide
    • Chemical reactions break down pollutants
    • Converts harmful gases into:
      • Less toxic substances
      • Harmless compounds

    Result:

    • Cleaner air
    • Reduced smog levels
    • Environmental cleaning

    Applications

    • Roads, Buildings, Pavements, Flyovers, and Public infrastructure

    Benefits

    • Reduces urban air pollution
    • Passive pollution control
    • Low maintenance
    • Cost effective
    • Sustainable technology
    [2013] Photochemical smog is a resultant of the reaction among: (a) NO 2 ​ , O 3 ​ and peroxyacetyl nitrate (PAN) in the presence of sunlight (b) CO 2 ​ , O 2 ​ , and peroxyacetyl nitrate in the presence of sunlight (c) CO, CO 2 ​ , and NO 2 ​ at low temperature (d) high concentration of NO 2 ​ , O 3 ​ and CO in the evening
  • FlDepth: New ISRO Tool to Measure Flood Depth from Space

    Why in the News

    Researchers at the National Remote Sensing Centre have developed FlDepth, a new GIS based tool that measures floodwater depth from space in near real time.

    What is FlDepth

    • A satellite based flood depth estimation tool
    • Developed by ISRO National Remote Sensing Centre
    • Converts 2D satellite flood images into 3D flood depth maps
    • Helps in disaster response and flood management
    [2019] For the measurement/estimation of which of the following are satellite images/remote sensing data used? 
    1 Chlorophyll content in the vegetation of a specific location 
    2 Greenhouse gas emissions from rice paddies of a specific location 
    3 Land surface temperatures of a specific location 
    Select the correct answer using the code given below: (a) 1 only (b) 2 and 3 only (c) 3 only (d) 1, 2 and 3
  • IVRI Produces Sahiwal Calves Using Advanced Reproductive Technology

    Why in the News

    The Indian Veterinary Research Institute successfully produced Sahiwal breed calves using advanced Assisted Reproductive Technologies, marking a major breakthrough in genetic improvement of indigenous cattle.

    Key Highlights

    • Institute: ICAR–Indian Veterinary Research Institute (IVRI), Izatnagar, Bareilly
    • Breed: Sahiwal indigenous cattle
    • Technology used:
      • Ovum Pick Up (OPU)
      • In-Vitro Fertilisation (IVF)
      • Embryo Transfer (ET)
    • Five healthy Sahiwal calves born within five days starting 28 February 2026

    What is OPU-IVF-ET Technology

    • Ovum Pick-Up (OPU): Ultrasound-guided collection of eggs from elite female animals
    • In-Vitro Fertilisation (IVF): Fertilisation in laboratory using selected superior semen
    • Embryo Transfer (ET): Developed embryos transferred to surrogate mothers
      • Enables rapid multiplication of superior genetics

    Why the Sahiwal Breed is Important

    • Indigenous dairy breed
    • Heat tolerant
    • Disease resistant
    • Suitable for tropical climates
    • High milk productivity among native breeds
    [2017] What is the application of Somatic Cell Nuclear Transfer Technology? (a) Production of biolarvicides (b) Manufacture of biodegradable plastics (c) Reproductive cloning of animals (d) Production of organisms free of diseases
  • UNEP Report: Waste Prevention Key to Safe Disposal of Unused Medicines

    Why in News

    A new report by the United Nations Environment Programme (UNEP) highlights waste prevention as the most effective strategy for the safe disposal of unused medicines, citing risks to environmental and public health.

    Why Improper Disposal is a Concern

    Improper disposal of medicines leads to:

    • Antimicrobial Resistance (AMR)
    • Endocrine disruption
    • Toxicity risks
    • Water, soil and air pollution
    • Accidental poisoning

    Unused and expired antimicrobials are particularly linked to AMR pollution.

    UNEP Four Pillar Framework

    The UNEP report proposes a Four-Pillar Approach:

    1. Prevention at source
    2. Medicine take-back systems
    3. Legal and policy frameworks
    4. Awareness and outreach programmes

    Unused Medicine in India 

    • Households discard up to 70% of purchased medicines, with common methods including throwing them in dustbins (over 80% in studies), contributing to environmental contamination and antimicrobial resistance
    • The Central Drugs Standard Control Organization (CDSCO) has issued formal guidelines to address this waste and the resulting environmental hazards.
    • Guidelines for:
    • Collection
    • Storage
    • Transportation
    • Disposal of expired medicines
    • 17 drugs placed under Flush List for safe disposal
    [2019] Which of the following are the reasons for the occurrence of multi-drug resistance in microbial pathogens in India? 
    1 Genetic predisposition of some people 
    2 Taking incorrect doses of antibiotics to cure diseases 
    3 Using antibiotics in livestock farming 
    4 Multiple chronic diseases in some people 
    Select the correct answer using the code given below: (a) 1 and 2 (b) 2 and 3 only (c) 1, 3 and 4 (d) 2, 3 and 4
  • DEFENCE NEWS 2026

    1. Integrated Guided Missile Development Programme (IGMDP)

    • Launched: 1983
    • Leader: A.P.J. Abdul Kalam
    • Objective: Self-reliance in missile technology
    • Duration: 1983 to 2012

    Missiles (PATNA):

    • Prithvi: Surface to Surface
    • Agni: Ballistic (later separated)
    • Trishul: Short range SAM
    • Nag: Anti tank, fire and forget
    • Akash: Medium range SAM

    Keywords: Self-reliance, Indigenous missiles, Strategic deterrence

    Prelims Traps:

    • IGMDP not ongoing
    • Agni separated from programme

    2. Ballistic vs Cruise Missiles

    Ballistic Missile:

    • Path: Parabolic trajectory
    • Propulsion: Initial phase only
    • Altitude: Outside atmosphere
    • Speed: Hypersonic

    Cruise Missile:

    • Path: Aircraft-like
    • Propulsion: Continuous
    • Altitude: Low altitude
    • Accuracy: High

    Keywords: Trajectory, Propulsion, Detection

    Prelims Traps:

    • Cruise missiles harder to detect
    • Ballistic missiles less maneuverable

    3. Hypersonic Technology

    • Speed: Mach 5 and above

    Types:

    • HGV: Rocket launched, glide phase
    • Hypersonic Cruise: Scramjet powered

    India:

    • HSTDV by DRDO
    • Scramjet tested by ISRO

    Engine Types:

    • Ramjet: Subsonic combustion
    • Scramjet: Supersonic combustion

    Keywords: Mach 5, Scramjet, Hypersonic

    Prelims Traps:

    • Scramjet requires very high initial speed

    4. Agni Series Missiles

    Agni V:

    • Range: Greater than 5000 km
    • Type: Ballistic
    • Feature: MIRV capable

    Agni Prime:

    • Range: 1000 to 2000 km
    • Feature: Canisterised

    Keywords: MIRV, Canisterisation, Strategic missile

    Prelims Traps:

    • Canisterisation reduces launch time

    5. Pralay Missile

    • Type: Quasi ballistic
    • Range: 150 to 500 km
    • Payload: 500 to 1000 kg

    Features:

    • Maneuverable trajectory
    • Hard to intercept

    Keywords: Quasi ballistic, Tactical missile

    Prelims Trap:

    • Not a cruise missile

    6. Astra Mk III (Gandiva)

    • Type: Air to air missile
    • Range: 300 to 350 km
    • Speed: Around Mach 4.5

    Platforms:

    • Su 30 MKI
    • Tejas

    Keywords: BVR missile, Air combat

    Prelims Trap:

    • Beyond Visual Range missile

    7. BrahMos Missile

    • Type: Supersonic cruise missile
    • Speed: Around Mach 3
    • Range: Around 350 km

    Developed by:

    • India and Russia

    Variants:

    • Land, Air, Sea, Submarine

    Keywords: Supersonic, Ramjet, Fire and forget

    Prelims Traps:

    • Uses ramjet engine

    8. Akashteer System

    • Type: AI enabled air defence system
    • Developer: Bharat Electronics Limited
    • Induction: 2024

    Features:

    • Autonomous monitoring
    • Tri services integration

    Keywords: AI defence, C4ISR integration

    Prelims Trap:

    • Army focused system

    9. IACCS

    • Full Form: Integrated Air Command and Control System
    • Service: Indian Air Force

    Features:

    • Radar integration
    • Real time data sharing
    • Multi layer defence

    Layers:

    • Counter drone
    • Short range
    • Medium range
    • Long range

    Keywords: Network centric warfare, Air defence

    Prelims Trap:

    • Not a Navy system

    10. Project Kusha

    • Type: Long range air defence system
    • Developer: DRDO

    Features:

    • Interceptors: 150, 250, 350 km
    • Comparable to S 400, Patriot

    Keywords: Missile shield, Indigenous defence

    Prelims Trap:

    • Fully indigenous

    11. Directed Energy Weapon (Sahastra Shakti)

    • Type: Laser weapon
    • Power: 30 kilowatt
    • Developer: DRDO

    Targets:

    • Drones
    • Missiles

    Keywords: Laser, Speed of light, DEW

    Prelims Trap:

    • No conventional ammunition

    12. K 4 Missile

    • Type: SLBM
    • Range: Around 3500 km

    Platform:

    • Nuclear submarines

    Keywords: Second strike, Nuclear deterrence


    13. INS Taragiri

    • Type: Stealth frigate
    • Project: 17A
    • Class: Nilgiri

    Features:

    • 75 percent indigenous
    • Multi mission

    Keywords: Stealth, Naval modernization


    14. Fighter Aircraft Generations

    4th Generation:

    • Maneuverability

    4.5 Generation:

    • AESA radar
    • Advanced avionics

    5th Generation:

    • Stealth
    • Sensor fusion

    6th Generation:

    • AI integration
    • Drone teaming

    India:

    • Tejas Mk1A: 4.5 generation
    • AMCA: 5th generation

    Keywords: Stealth, AESA, AI

    Prelims Trap:

    • 4.5 generation not stealth

    15. Drone Systems

    Types:

    • HALE: MQ 9B
    • MALE: TAPAS, Rustom
    • Loitering munition: Harop

    Indian Systems:

    • Indrajaal: Anti drone dome
    • Bhragavastra: Micro missile system

    Keywords: UAV, Loitering munition, Surveillance

    Prelims Trap:

    • Loitering munition is drone missile hybrid

    16. Sonobuoys

    • Use: Anti submarine warfare

    Working:

    • Dropped in water
    • Hydrophone detects sound
    • Data transmitted to aircraft

    Keywords: Underwater detection, Acoustic signals

    Prelims Trap:

    • Not radar based

    17. Mission Sudarshan Chakra

    • Announcement: 15 August 2025

    Objective:

    • National security shield by 2035

    Coverage:

    • Air, land, sea
    • Civilian infrastructure

    Keywords: Integrated defence, National security


    18. Golden Dome

    • Country: USA
    • Type: Missile defence system

    Features:

    • Ground and space based

    Legal Aspect:

    • Outer Space Treaty bans WMD in space
    • Conventional weapons allowed

    Keywords: Space militarisation, Missile shield

    Prelims Trap:

    • Space not fully demilitarised
  • How agriPV can turn India’s farms into dual purpose powerhouses

    Why in the News?

    India’s target of 300 GW solar capacity by 2030 has intensified land-use conflicts with agriculture, bringing agrivoltaics (AgriPV) into focus as a dual-use solution. The near doubling of PM-KUSUM allocation to ₹5,000 crore signals a shift toward farmer-centric solarisation. However, despite ~50 pilots, AgriPV faces scalability challenges due to high costs and regulatory gaps.

    What is Agrivoltaics?

    Agrivoltaics, also known as AgriPV or agrophotovoltaics (APV), is the simultaneous use of land for both solar energy generation and agriculture. Unlike traditional solar farms where panels are ground-mounted on bare land, AgriPV systems are designed to allow crops to grow, livestock to graze, or pollinator habitats to thrive underneath or between the solar panels.

    AgriPV systems optimize land use by placing solar panels in specific configurations to balance electricity production with agricultural needs: 

    1. Elevated (Stilted) Systems: Panels are mounted on tall structures (at least 2.1m to 4m high), providing enough clearance for tractors and farming machinery to operate underneath.
    2. Inter-row (Ground-mounted) Systems: Panels are placed at lower heights but with wide spacing between rows to allow crops to be cultivated in the alleys between arrays.
    3. Vertical Systems: Bifacial panels are mounted vertically (like walls), often at the periphery of fields, capturing sunlight primarily during sunrise and sunset while leaving the maximum amount of ground open for farming.
    4. PV Greenhouses: Solar modules are integrated into the roof or exterior of a greenhouse to regulate internal temperature and power its climate control system.

    How does Agrivoltaics address the land-energy-agriculture conflict?

    1. Dual Land Use: Enables simultaneous electricity generation and crop cultivation on the same land parcel.
    2. Land Efficiency: Reduces pressure on agricultural land compared to utility-scale solar requiring large tracts.
    3. Food-Energy Balance: Maintains agricultural output while expanding renewable capacity.
    4. Example: Elevated panel systems allow crops to grow underneath without disrupting farming operations.

    What are the design and technological variations in AgriPV systems?

    1. Elevated Systems: Panels mounted several metres above ground ensure adequate sunlight for crops.
    2. Row-based Systems: Panels placed between crop rows minimise shading impact.
    3. Vertical Systems: Upright panels reduce land obstruction and optimise sunlight distribution.
    4. Greenhouse Integration: Panels installed on rooftops or walls support controlled farming environments.
    5. Agro-climatic Adaptation: Crop selection varies across regions (e.g., tomato, onion, turmeric in MP; grapes, tomato in Maharashtra).

    What economic benefits does Agrivoltaics provide to farmers?

    1. Income Diversification: Farmers earn through electricity sales, leasing land, or revenue-sharing models.
    2. Reduced Input Costs: Solar-powered irrigation lowers diesel dependency.
    3. Risk Mitigation: Protection from extreme weather (hail, rainfall) stabilises farm output.
    4. Example: PM-KUSUM promotes decentralised solar pumps and power plants to enhance farm incomes.

    What environmental and productivity benefits does AgriPV offer?

    1. Water Conservation: Reduced evapotranspiration due to panel shading improves soil moisture retention.
    2. Climate Resilience: Protection against extreme weather events enhances crop stability.
    3. Energy Sustainability: Supports clean energy generation aligned with net-zero goals.
    4. Example: Partial shading benefits crops sensitive to excessive sunlight.

    What are the key challenges limiting large-scale adoption?

    1. High Capital Costs: Elevated structures and specialised mounting systems increase investment costs beyond conventional solar.
    2. Regulatory Uncertainty: Lack of clarity in land classification, tariffs, and grid connectivity.
    3. Design Gaps: Absence of standardised benchmarks for crop-panel configurations.
    4. Institutional Barriers: Limited access to affordable finance and weak governance frameworks.
    5. Data Deficit: Insufficient empirical evidence across agro-climatic zones.

    What policy measures can accelerate Agrivoltaics deployment?

    1. National Mission Integration: Inclusion in a proposed National Agri-Photovoltaics Mission under PM-KUSUM 2.0.
    2. Financial Support: Viability Gap Funding (VGF) reduces capital cost burden.
    3. State-level Interventions: Identification of clusters and streamlined approvals.
    4. Capacity Building: Integration into farmer training and advisory systems.
    5. Market Linkages: Clear tariffs and long-term purchase agreements ensure financial viability.

    What is the current status of Agrivoltaics in India?

    1. Pilot Projects: Around 50 installations across different regions.
    2. Policy Recognition: Increasing mention in renewable energy discussions.
    3. Scaling Constraint: Lack of commercial-scale implementation due to financial and regulatory barriers.

    Conclusion

    Agrivoltaics provides a viable pathway to reconcile India’s energy transition with agricultural sustainability. Scaling requires policy clarity, financial innovation, and region-specific design optimisation.

    PYQ Relevance

    [UPSC 2022] What is Integrated Farming System? How is it helpful to small and marginal farmers?

    Linkage: AgriPV represents an advanced form of Integrated Farming System, combining agriculture with solar energy generation on the same land. It enhances income diversification and resource efficiency for small and marginal farmers, aligning directly with the objectives of IFS.

  • PRARAMBH 2026 – Income Tax Awareness Campaign 

    Why in the News

    • Government launched PRARAMBH 2026, a nationwide awareness campaign for the Income Tax Act, 2025 (effective from 1 April 2026).

    About PRARAMBH 2026

    • Full form: Policy Reform and Responsible Action for Mission Viksit Bharat
    • Nature: Nationwide taxpayer awareness and outreach campaign
    • Mode:
      • Print, TV, radio, digital, social media
      • On-ground workshops and engagement

    Key Objectives

    • Promote: Tax awareness and Ease of compliance
    • Shift behaviour: From confusion to trust-based compliance
    • Ensure: Smooth implementation of new tax law

    Key Features

    1. Taxpayer Outreach

    • Guidance material: FAQs, Brochures and Tutorial videos
    • Available in: 10 regional languages plus English and Hindi

    2. Digital Initiatives

    • Launch of Income Tax Website 2.0
      • Improved usability
      • Simpler navigation
    • AI chatbot:
      • Kar Saathi
      • Helps with: Act, Rules, and Forms

    3. Capacity Building

    • Nationwide: 300 plus workshops
    • Focus:
      • Training tax officials
      • Stakeholder engagement

    4. Citizen-Centric Approach

    • Principle: Nagrik Devo Bhava
    • Focus on:
      • Empathy
      • Trust-based tax administration
      • Reduced human interface through technology

    New Income Tax Act, 2025

    • Effective from: 1 April 2026
    • Key aims: Simplicity, Clarity, Reduced litigation, and Better compliance

    Governance Philosophy

    • Based on: M.A.N.A.V. framework
      • Moral and ethical systems
      • Accountable governance
      • National sovereignty
      • Accessible and inclusive AI
      • Valid systems
    [2020] In the context of India, which one of the following is the characteristic appropriate for bureaucracy? (a) An agency for widening the scope of parliamentary democracy (b) An agency for strengthening the structure of federalism (c) An agency for facilitating political stability and economic growth (d) An agency for the implementation of public policy