Upsc Science and technology

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🔆 Why Tanks Still Matter in Modern Warfare 📍 Why in News? ✅ Debate over the relevance of tanks has intensified after recent conflicts such as the Russia–Ukraine War, Iran–Israel tensions and Operation Sindoor. ✅ India is inducting the indigenous Zorawar Light Tank for high-altitude operations along the Line of Actual Control (LAC). 📍 Why Tanks Still Matter ✅ Wars are ultimately won by controlling territory, not merely destroying enemy assets. ✅ Tanks provide high mobility, firepower and protection in combined-arms operations. ✅ Essential for breaking enemy defences, supporting infantry and holding captured areas. ✅ Drones and missiles can destroy targets but cannot occupy and secure territory. 📍 Lessons from Recent Conflicts ✅ Russia–Ukraine War exposed tank vulnerabilities to drones but also reaffirmed their role in ground offensives. ✅ US–Iran confrontation highlighted the growing use of low-cost drones against high-value military assets. ✅ Operation Sindoor showed the need for layered air defence and anti-drone systems. 📍 India’s Armoured Modernisation ✅ Zorawar Light Tank developed by DRDO and Larsen & Toubro (L&T). ✅ Designed for high-altitude warfare and rapid deployment in mountainous terrain. ✅ Planned induction of 354 tanks by 2028–29. ✅ Estimated project cost: ₹17,500 crore. ✅ Specifically designed for operations along the LAC against China. 📍 Why Zorawar is Important ✅ Lightweight and air-transportable (~25 tonnes). ✅ Suitable for high-altitude regions, narrow valleys and weak bridges. ✅ Enhances mobility where heavier tanks face operational limitations. ✅ Complements India’s mountain warfare capabilities. 📍 Challenges for Conventional Tanks ✅ Increasing vulnerability to drones, loitering munitions and precision-guided weapons. ✅ High fuel consumption and maintenance costs. ✅ Recovery and repair become difficult in mountainous terrain. ✅ Require integrated air-defence, electronic warfare and active protection systems. 📍 India’s Armoured Fleet ✅ T-72 Ajeya remains the backbone with about 2,400–2,500 tanks. ✅ T-90S Bhishma strength exceeds 1,200 tanks. ✅ Future armoured warfare will rely on network-centric, multi-domain operations integrating tanks, drones, artillery and AI-enabled systems. 📍 Prelims Nuggets ✅ Zorawar → Indigenous light tank for high-altitude warfare. ✅ Developed by DRDO & L&T. ✅ Deployment focus → Line of Actual Control (LAC). ✅ Weight → Around 25 tonnes. ✅ Mains Practice “Emerging technologies have transformed warfare, but armoured platforms continue to remain relevant in achieving military objectives.” Discuss with reference to India’s defence preparedness. (GS III – Security) #Defence #InternalSecurity #ScienceAndTechnology

🔆 Defence Acquisition Council (DAC) 📍 Why in News? ✅ The Defence Acquisition Council (DAC) has approved capital acquisition proposals for the procurement of several advanced weapon systems. 📍 About Defence Acquisition Council (DAC) ✅ Established: 2001. ✅ Chairperson: Defence Minister. ✅ Highest decision-making body for capital procurement in the Ministry of Defence. ✅ Grants Acceptance of Necessity (AoN) for capital acquisition proposals. ✅ Provides in-principle approval for acquisitions under the Long-Term Integrated Perspective Plan (LTIPP). 📍 Key Weapon Systems Approved ✅ AKASH TARANG: Anti-Unmanned Aerial Vehicle (UAV) Electronic Warfare System for the Indian Army. ✅ Uses soft-kill technology by jamming GPS/GNSS signals and disrupting communication between the drone and its operator. ✅ Medium Range Surface-to-Air Missile (MR-SAM): ✅ Jointly developed by DRDO and Israel Aerospace Industries (IAI). ✅ Based on the Barak-8 missile with an interception range of over 70 km. ✅ Very Short Range Air Defence System (V-SHORADS): ✅ An indigenously developed Man-Portable Air Defence System (MANPADS). ✅ Designed to neutralize low-altitude aerial threats such as aircraft, helicopters, and drones at short ranges. #GS3 #prelims #science_technology #science_and_technology Join https://t.me/PIB_UPSC https://t.me/upsc_science_and_technology

🔆 UPSC Editorial Analysis: Transitioning to Sovereign AI 📍 Introduction ✅ The establishment of Anthropic’s Bengaluru office alongside U.S. export restrictions on frontier AI models highlights that Artificial Intelligence (AI) has evolved from a commercial technology into a strategic geopolitical and national security asset. 📍 What is Sovereign AI? ✅ Sovereign AI refers to developing indigenous AI infrastructure, foundational models, computing capacity, and datasets, ensuring technological self-reliance, data sovereignty, and strategic autonomy. 📍 Why Sovereign AI Matters ✅ AI has become a dual-use technology with applications in defence, cyber security, intelligence, healthcare, and governance. ✅ Dependence on foreign AI models exposes countries to export controls, geopolitical risks, and supply disruptions. ✅ Indigenous AI strengthens national security, innovation, and economic competitiveness. 📍 Challenges for India ✅ Wrapper Trap: Many startups depend on foreign AI APIs instead of building foundational models. ✅ Service-Oriented Ecosystem: Strong IT services sector but limited indigenous AI intellectual property. ✅ Data Sovereignty Risks: Sensitive Indian data processed on foreign cloud platforms. ✅ Algorithmic Bias: AI models trained on Western datasets may not suit India’s linguistic and socio-cultural diversity. ✅ Cyber Security Risks: Foreign restrictions can disrupt critical digital infrastructure. 📍 Socio-Economic Implications ✅ AI can transform agriculture through precision farming. ✅ Enables vernacular education and personalized learning. ✅ Improves healthcare diagnostics and public service delivery. ✅ Supports Digital India and inclusive governance. 📍 Government Initiatives ✅ IndiaAI Mission (₹10,000 crore). ✅ Bhashini for Indian language AI. ✅ Support for indigenous models like Krutrim, Sarvam AI, and Project Indus. ✅ Expansion of domestic AI computing infrastructure and GPU capacity. 📍 Way Forward ✅ Develop indigenous Large Language Models (LLMs). ✅ Build domestic AI supercomputing infrastructure. ✅ Promote AI research through IITs, IIITs, IISc, and industry collaboration. ✅ Strengthen AI governance, ethical standards, and data protection. ✅ Encourage deep-tech innovation through public funding and venture capital. 📍 Conclusion ✅ India’s transition to Sovereign AI is essential for strategic autonomy, digital sovereignty, national security, and global technological leadership. Building indigenous AI capabilities will enable India to move from being the world’s technology back-office to becoming a global AI innovation leader. 📝 UPSC GS-II/III Mains Practice Question (15 Marks | 250 Words) “Discuss the major risks associated with frontier Artificial Intelligence (AI) systems. Examine the limitations of existing global AI governance frameworks and suggest principles for building an equitable and sovereign AI ecosystem.” #mains

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🔆 I-2SEA Submarine Cable System (SCS) Source: PIB Subject: Science & Technology 📍 Why in News? ✅ A consortium of Microsoft, Singtel, Tata Communications, and Lightstorm has announced the 3,600 km-long I-2SEA Submarine Cable System, connecting India, Malaysia, and Singapore. ✅ The system is expected to become operational by 2029. 📍 About I-2SEA Submarine Cable System (SCS) ✅ A next-generation submarine fibre-optic cable designed to meet the rising demand for AI training, AI inference, hyperscale cloud services, GPU infrastructure, and enterprise connectivity. ✅ Connects Machilipatnam (Andhra Pradesh) and South Chennai (Tamil Nadu) with Kuala Lumpur (Malaysia) and Singapore. 📍 About Submarine Cable Systems ✅ Fibre-optic cables laid on the ocean floor to provide global internet and telecommunications connectivity. ✅ Optical fibres transmit data as light pulses. ✅ Operate on the principle of Total Internal Reflection (TIR), where light continuously reflects within the fibre core with minimal loss. ✅ Carry around 95–99% of global international data traffic. ✅ Recognised by the United Nations General Assembly (UNGA) in 2010 as critical communication infrastructure. 📍 Key Challenges ✅ Vulnerable to accidental damage from ship anchors and fishing activities. ✅ Risk of deliberate sabotage and cyber-related security threats. ✅ Susceptible to earthquakes, underwater landslides, and other natural hazards. ✅ Ageing infrastructure requires regular maintenance and upgrades. #GS3 #prelims #science_technology #science_and_technology Join https://t.me/PIB_UPSC https://t.me/upsc_science_and_technology

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🔆 UN AI Report Calls for Responsible and Inclusive AI Governance 📍 Why in Focus? The UN Preliminary Report of the Independent International Scientific Panel on AI highlights widening inequalities in AI development and stresses the need for responsible, inclusive, and accountable AI governance to ensure benefits are shared globally. 📍 Key Highlights: ✅ The report warns of a growing Global North–Global South AI divide, with advanced economies poised to capture most AI benefits while developing nations struggle with regulation and access. ✅ It highlights that AI governance is increasingly influenced by a handful of large technology companies, limiting policy autonomy for emerging economies. ✅ AI has immense potential in scientific research, healthcare, education, and productivity, but its rapid deployment has outpaced regulatory and institutional safeguards. ✅ The report flags risks from deepfakes, misinformation, AI-enabled cyber threats, monopolisation of AI infrastructure, and potential economic disruptions linked to advanced AI systems. ✅ It calls on governments to build transparent, accountable, and human-centric AI frameworks, while ensuring the Global South has a meaningful role in shaping global AI governance. 📍 Challenges / Issues / Implications: ✅ Unequal access to compute infrastructure, electricity, capital, and skilled talent could widen global technological and economic disparities. ✅ Weak regulatory capacity in developing countries may increase vulnerabilities to AI misuse and digital dependence. ✅ Balancing innovation, ethical safeguards, privacy, security, and accountability remains a major policy challenge. ✅ Mains Question: “Artificial Intelligence offers transformative opportunities but also poses significant governance challenges. Discuss the need for inclusive global AI governance and examine India’s role in ensuring ethical, secure, and equitable AI development.” (GS III, 250 Words) #ScienceAndTechnology

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🔆 The Bundibugyo Virus Disease (BVD) Subject: Science & Technology 📍 Why in News? ✅ WHO has included the first molecular diagnostic test for Bundibugyo virus (BDBV) under its Emergency Use Listing (EUL). 📍 What is Bundibugyo Virus Disease (BVD)? ✅ A severe zoonotic viral disease caused by the Bundibugyo virus, a species of the Orthoebolavirus (Ebola virus) genus. ✅ Characterized by high infectivity and a 30–50% case fatality rate in previous outbreaks. 📍 Transmission ✅ Natural reservoir: Fruit bats (suspected). ✅ Initial spillover through contact with infected bats or non-human primates. ✅ Human-to-human transmission occurs through: ✅ Blood and other bodily fluids. ✅ Contaminated medical equipment and surfaces. ✅ Unsafe burial practices. 📍 Key Features ✅ Incubation period: 2–21 days (patients are not infectious before symptoms appear). ✅ No approved vaccine or specific antiviral treatment currently available. ✅ Diagnosis confirmed through PCR or antigen/antibody tests. ✅ Control relies on early detection, isolation, contact tracing, PPE, and supportive care. 📍 Symptoms ✅ Early: Fever, headache, fatigue, muscle pain, sore throat. ✅ Progressive: Vomiting, diarrhoea, abdominal pain. ✅ Severe: Liver and kidney failure, internal and external haemorrhage. 📍 Challenges ✅ Early symptoms resemble malaria and typhoid, delaying diagnosis. ✅ Weak healthcare systems and conflict zones hamper surveillance and outbreak control. ✅ Cross-border movement, especially between DR Congo and Uganda, increases regional transmission risk. 📍 UPSC Value Addition ✅ WHO Emergency Use Listing (EUL) is a risk-based mechanism that facilitates the rapid availability of diagnostics, vaccines, and medicines during public health emergencies while ensuring minimum standards of quality, safety, and performance. #GS3 #prelims #science_technology #science_and_technology Join https://t.me/PIB_UPSC https://t.me/upsc_science_and_technology

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🔆 PRELIMS | Vikram-1 Rocket Source: PIB Subject: Science & Technology 📍 Context ✅ Vikram-1 is India’s first privately developed orbital-class rocket. ✅ Its maiden mission, Mission Aagaman, is scheduled between 12 July and 4 August 2026. 📍 About Vikram-1 ✅ Developed by Skyroot Aerospace, a Hyderabad-based space startup. ✅ Follows the successful Vikram-S suborbital launch in 2022, the first private rocket launched from Indian soil. ✅ Maiden flight named Mission Aagaman (“The Arrival”). 📍 Mission Highlights ✅ Launch from Satish Dhawan Space Centre (SDSC-SHAR), Sriharikota, Andhra Pradesh. ✅ Aims to place domestic and international payloads into a 450 km Low Earth Orbit (LEO) with 60° inclination. ✅ Primary objective is to validate real-time flight performance, including propulsion, stage separation, guidance, and navigation systems. 📍 Key Features ✅ 7-storey-tall, multi-stage launch vehicle. ✅ Built using an all-carbon composite structure for lightweight and rapid manufacturing. ✅ Powered by indigenously developed solid and liquid propulsion systems. ✅ Equipped with advanced 3D-printed rocket engines and high-thrust solid boosters. ✅ Can carry up to 350 kg payload into Low Earth Orbit (LEO). ✅ Fully autonomous with onboard guidance, navigation, and control systems. 📍 Significance ✅ Marks a major milestone in India’s private space sector. ✅ Strengthens India’s commercial launch capabilities under IN-SPACe reforms. ✅ Supports the growing global market for small satellite launches. 📍 UPSC PRELIMS FACTS ✅ Developer: Skyroot Aerospace ✅ Mission Name: Mission Aagaman ✅ Launch Site: SDSC-SHAR, Sriharikota ✅ Orbit: 450 km Low Earth Orbit (LEO) ✅ Payload Capacity: 350 kg ✅ Predecessor: Vikram-S (2022) – India’s first privately launched rocket. #GS3 #prelims #science_technology #science_and_technology Join https://t.me/PIB_UPSC https://t.me/upsc_science_and_technology

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