Stay updated with the Current Affairs 18 October 2025, covering National, International, Economy, Science & Technology, Environment, Defence, Art & Culture, and Governance updates. This comprehensive summary provides accurate, exam-focused insights for aspirants of UPSC, SSC, Banking, and State PSC exams, helping you understand key developments shaping India and the world.
ONE LINER CURRENT AFFAIRS
National
- The GST compensation cess for states has officially ended, triggering concerns over revenue stability and fiscal autonomy for various states.
- The Ministry of Mines released the first-ever State Mining Readiness Index (SMRI), ranking Madhya Pradesh, Rajasthan, and Gujarat as the top three mineral-rich states.
- The Unique Identification Authority of India (UIDAI) launched the SITAA scheme to foster innovation in countering deepfakes and biometric fraud in Aadhaar authentication.
- Ayodhya is preparing for a grand Deepotsav, with plans to illuminate 56 ghats with over 28 lakh earthen lamps, aiming for a world record.
- The Uttar Pradesh government is showcasing its development achievements through 22 tableaux in Ayodhya, highlighting schemes like Ayushman Bharat and infrastructure projects.
- Extensive health arrangements are in place for Ayodhya’s Deepotsav, including 15 temporary hospitals and round-the-clock ambulance points.
- The ‘Diya Ayodhya’ app was launched to enable global virtual participation in the Deepotsav celebrations.
- An international puppet show (Pankh Leela) featuring artists from Russia, Thailand, Indonesia, Nepal, and Sri Lanka will be held in Ayodhya.
- The 16th International Railway Equipment Exhibition (IREE 2025), a major global rail event, concluded in New Delhi with over 450 exhibitors.
- Nippon India Mutual Fund is promoting Gold ETFs and Gold Funds as a modern, regulated investment alternative to physical gold for Dhanteras.
International Relations
- India and the MERCOSUR bloc have agreed to deepen their Preferential Trade Agreement (PTA), targeting a conclusion of negotiations within one year.
- China has filed a formal complaint against India at the World Trade Organization (WTO) over alleged unfair subsidies for domestic electric vehicle and battery manufacturers.
- The WTO complaint process has been initiated, beginning with a mandatory 60-day consultation period between Indian and Chinese officials.
- MERCOSUR, a South American trade bloc, includes Argentina, Brazil, Paraguay, and Uruguay as full members, with Venezuela suspended and Bolivia recently acceded.
- The India-MERCOSUR Framework Agreement was originally signed in 2003, with a PTA following in 2009.
- China’s complaint alleges that India’s subsidies, including tax rebates and PLI schemes, violate the WTO’s Agreement on Subsidies and Countervailing Measures (SCM).
- If WTO consultations fail, China can request the establishment of a dispute settlement panel to adjudicate the matter.
- The dispute highlights growing trade tensions in the strategically important global electric vehicle market.
- The outcome of this dispute could impact India’s policy space for promoting its domestic manufacturing under the ‘Atmanirbhar Bharat’ initiative.
- MERCOSUR’s headquarters are located in Montevideo, Uruguay.
Environment
- The South Atlantic Anomaly (SAA), a vast and growing weak spot in Earth’s magnetic field, has expanded by nearly 0.9% since 2014.
- The SAA has recently split into two distinct cells—one over South America and another near southwest Africa.
- This anomaly is caused by complex dynamics and reverse magnetic flux patches in Earth’s molten outer core.
- The weakened magnetic field in the SAA region poses a significant risk to satellites and spacecraft, exposing them to heightened radiation.
- Satellites in low-Earth orbit passing through the SAA can experience instrument glitches, data corruption, and temporary blackouts.
- The SAA’s expansion and westward drift are continuously monitored by the European Space Agency’s (ESA) Swarm satellite mission.
- The anomaly allows charged solar particles to penetrate closer to Earth’s surface than in other regions.
- This phenomenon can also cause challenges for magnetic navigation systems used in aviation and space operations.
- The SAA is a natural, long-term feature first identified in the 19th century, but its recent rapid evolution is a subject of active scientific study.
- Understanding the SAA is crucial for protecting critical space infrastructure and planning future satellite missions.
Science & Technology
- ‘Project Trinetra’, an AI-driven predictive policing initiative, was launched by the Akola Police in Maharashtra to anticipate and prevent repeat crimes.
- The DRDO successfully tested the indigenously developed Military Combat Parachute System (MCPS) at an altitude of 32,000 feet.
- Neuroscientists are warning of a “dopamine overdose” epidemic, where constant digital stimulation from social media is rewiring brain reward pathways.
- The MCPS is integrated with India’s NaVIC satellite navigation system for precise landing, enhancing self-reliance.
- Project Trinetra uses a Repeat Offender Risk Scoring (RORS) algorithm and includes ethical safeguards to prevent algorithmic bias.
- Studies cited show that social media use activates the same brain regions (nucleus accumbens) as addictive substances like cocaine.
- The MCPS, developed by DRDO labs in Agra and Bengaluru, offers superior safety, control, and easier maintenance than imported systems.
- The SITAA scheme focuses on developing AI-based solutions for face liveness detection and contactless fingerprint authentication to secure Aadhaar.
- Research indicates the average attention span has dropped to 8.25 seconds, lower than that of a goldfish, due to digital multitasking.
- “Dopamine fasting” and mindful engagement are recommended practices to reset the brain’s reward system from digital overstimulation.
Governance
- A major governance issue is the restoration of fiscal space for states following the cessation of the GST compensation cess.
- ‘Project Trinetra’ represents a shift towards data-driven and predictive governance in the realm of law and order.
- The State Mining Readiness Index (SMRI) is a governance tool to benchmark and encourage competition among states in mineral sector reforms.
- The GST Council’s structure, where the Centre holds a decisive 33% voting share, is a point of contention in Centre-State fiscal relations.
- The 16th Finance Commission is expected to revisit the vertical devolution formula to address the fiscal imbalance between the Centre and states.
- Opposition-ruled states have alleged delays in fund releases and politically influenced allocations for Centrally Sponsored Schemes (CSS).
- The SITAA scheme exemplifies governance leveraging public-private partnerships to strengthen critical digital infrastructure.
- There are proposals to merge central cesses and surcharges into the divisible tax pool to increase transparency and state revenues.
- Ethical governance is emphasized in Project Trinetra through its human-in-the-loop approach and transparent algorithms.
- The abolition of the Planning Commission in 2014 is cited as a turning point that increased states’ dependency on the Centre’s discretionary grants.
Economy
- The core economic debate revolves around restoring fiscal federalism, with states demanding a greater share of central taxes and more autonomy.
- China’s WTO complaint directly targets India’s subsidy schemes for its electric vehicle and battery industry, a key sector for future economic growth.
- Cesses and surcharges, which are not shared with states, have grown significantly, accounting for ₹4.23 lakh crore in the 2025-26 Budget Estimates.
- The actual share of states in the Centre’s Gross Tax Revenue has fallen to below 33%, despite Finance Commission recommendations.
- A key reform proposal is the equal sharing (50:50) of the Personal Income Tax (PIT) base between the Centre and states.
- The expansion of the India-MERCOSUR PTA is aimed at boosting bilateral trade and investment flows.
- States now handle over 50% of total public expenditure but collect only about 33% of the total tax revenue, creating a vertical fiscal imbalance.
- The GST slab restructuring, while benefiting consumers, is identified as a factor that shrinks the fiscal space for states.
- Economically advanced states like Tamil Nadu have argued for a more equitable distribution of funds, receiving proportionally less from central devolution.
- The 15th Finance Commission reduced the states’ share of central taxes from 42% to 41% after the bifurcation of Jammu and Kashmir.
Social
- A significant social concern is the impact of “dopamine overdose” from digital lifestyles, leading to rising anxiety, depression, and attention disorders among youth.
- Heavy social media use (over 3 hours/day) is linked to a 60% higher rate of depression among teenagers, as per the American Psychological Association.
- The culture of constant online comparison is leading to emotional instability and mood fluctuations among 43% of adolescents, according to UNICEF.
- Digital withdrawal symptoms, including anxiety when separated from phones, are reported by 63% of adults, indicating behavioral addiction.
- Easy access to digital rewards is reducing real-world motivation, with surveys showing youth struggling to find activities like sports and studies stimulating.
- Practices like “dopamine fasting” are being adopted to help individuals, particularly in high-stress environments, reset their brain’s reward system.
- Mindful activities like yoga, meditation, and journaling are recommended to release dopamine steadily and reduce dependency on digital “quick highs.”
- Face-to-face human interactions are scientifically shown to be more effective than digital ones in elevating long-term well-being and sustainable dopamine release.
- The “attention economy” engineered by social media platforms is identified as a key driver of shortening attention spans and reduced impulse control.
- Adequate sleep (7-9 hours) and a diet rich in tyrosine (found in bananas, almonds) are promoted as essential for stabilizing dopamine production and mental health.
Defence
- The DRDO successfully tested the indigenously developed Military Combat Parachute System (MCPS) at 32,000 feet, a record for an Indian system.
- The MCPS is designed for high-altitude combat free-fall operations by special forces, enabling safe and precise landings in extreme conditions.
- This achievement is a major leap for the ‘Atmanirbhar Bharat’ (self-reliance) initiative in defence, reducing dependence on imported parachutes.
- The system was jointly developed by the Aerial Delivery Research and Development Establishment (ADRDE) in Agra and the Defence Bioengineering and Electromedical Laboratory (DEBEL) in Bengaluru.
- The MCPS features a lower rate of descent, superior steering control, and is integrated with the Indian NaVIC satellite navigation system.
- Its operational flexibility allows for pre-determined altitude deployment and accurate zone navigation under combat conditions.
- The parachute system offers a maintenance advantage with quick turnaround and easy repairability, providing higher lifetime utility.
- The successful test at very high altitudes enhances the strategic and operational autonomy of India’s paratroopers and special forces.
- This development marks India’s entry into an elite group of nations capable of producing such advanced high-altitude aerial delivery systems.
- The MCPS is a critical piece of gear that enhances the capabilities of Indian forces for tactical missions behind enemy lines or in difficult terrain.
Art & Culture
- Ayodhya is being transformed into a massive art exhibition, with streets and walls adorned with murals and paintings depicting scenes from the Ramayana.
- An international ‘Pankh Leela’ (puppet show) will be performed in Ayodhya by artists from Russia, Thailand, Indonesia, Nepal, and Sri Lanka.
- The thematic decoration of Ayodhya under “Ayodhya: The City of Light and Devotion” includes lamp-shaped lights and artistic installations.
- Seven tableaux by the Tourism Department, inspired by the seven chapters (Kandas) of the Ramayana, will be part of the Deepotsav procession.
- The grand Deepotsav celebration itself is a showcase of Indian cultural and religious heritage, aiming to position Ayodhya as a global cultural capital.
- Over 90 artists from across India will participate in the Deepotsav celebrations, performing various folk dance forms.
- The Ayodhya Development Authority is beautifying public spaces with stone sculptures and artistic expressions near the Ram Temple.
- The international puppet show will present specific episodes: Russian artists will stage the Swayamvar of Ram and Sita, while Thai artists will depict major battles.
- The city’s ghats are being developed not just for utility but as cultural spaces with amphitheaters and stone canopies for performances and gatherings.
- The entire event is a fusion of heritage and modernity, using art and culture to drive spiritual tourism and showcase Uttar Pradesh’s soft power.
Infrastructure
- Ayodhya is undergoing a major infrastructure push with projects worth ₹2,346 lakh, including a new 20,000-seat gallery at Ram Ki Paidi.
- A 250-meter ghat development project is underway, featuring modern lighting, boundary walls, and clean routes along the Saryu River.
- The 16th International Railway Equipment Exhibition highlighted ongoing advancements and global collaborations in India’s railway infrastructure.
- Infrastructure for Deepotsav includes the beautification of a 2.5-km stretch of Saryu ghats with new canopies, worship zones, and a VIP pavilion.
- The development works in Ayodhya are designed to merge heritage aesthetics with modern amenities, strengthening its image as a global spiritual capital.
- The railway exhibition saw the signing of 37 Letters of Intent (LOIs), indicating future projects and partnerships in the transportation sector.
- Public infrastructure in Ayodhya is being upgraded with grand lamps, amphitheaters, and improved facilities to handle large numbers of tourists and devotees.
- The focus on non-coal minerals in the State Mining Readiness Index (SMRI) is aimed at building infrastructure for a diversified and sustainable mining sector.
- The Jammabhoomi Path and Hammangarhi Marg in Ayodhya are highlighted as key routes that have been illuminated and decorated with world-class displays.
- Health infrastructure for the event is being bolstered with temporary hospitals and ambulance networks, showcasing planning for large-scale public gatherings.
Geography
- The South Atlantic Anomaly (SAA) is a specific geographical region over the South Atlantic Ocean and parts of South America.
- This region is characterized by a significantly weaker intensity of Earth’s magnetic field compared to the global average.
- The SAA is not a surface feature but a geomagnetic phenomenon with direct implications for the space environment above it.
- The anomaly is formed due to the irregular flow of molten iron and nickel in Earth’s outer core, which disrupts the planet’s magnetic field generation.
- The SAA is moving westward and has been continuously expanding, as monitored by satellites since 2014.
- The location of the SAA affects a specific orbital region, making it a hazardous zone for satellites in low-Earth orbit.
- The underlying cause is linked to “reverse flux patches” beneath the South Atlantic, where the planet’s magnetic field lines re-enter instead of exiting.
- The split of the SAA into two cells is a recent geographical development observed since 2020.
- This geographical feature demonstrates that Earth’s magnetic poles are not static and that the field is dynamic and constantly changing.
- The SAA’s existence and behavior are key subjects in the field of geomagnetism and planetary science.
Places in the News
- Ayodhya, Uttar Pradesh: The primary focus for the grand Deepotsav 2025 celebrations, with massive cultural, spiritual, and infrastructural developments.
- Akola, Maharashtra: Gained prominence as the launch site for the pioneering ‘Project Trinetra’ in AI-based predictive policing.
- South Atlantic Ocean: The location of the expanding and splitting South Atlantic Anomaly (SAA), a weak spot in Earth’s magnetic field.
- Montevideo, Uruguay: The headquarters of the MERCOSUR trade bloc, which is negotiating an expanded trade deal with India.
- Geneva, Switzerland: The location of the World Trade Organization (WTO), where China has filed its complaint against India’s EV subsidies.
- Agra, Uttar Pradesh: Home to the Aerial Delivery Research and Development Establishment (ADRDE), a DRDO lab that co-developed the MCPS.
- Bengaluru, Karnataka: Home to the Defence Bioengineering and Electromedical Laboratory (DEBEL), the other DRDO lab involved in the MCPS development.
- Madhya Pradesh: Topped the Category A (mineral-rich states) in the first State Mining Readiness Index (SMRI).
- Goa: Topped Category B (moderately endowed states) in the State Mining Readiness Index (SMRI) rankings.
- Punjab: Topped Category C (low-mineral endowment states) in the State Mining Readiness Index (SMRI).
History
- The current fiscal debate has its roots in the 101st Constitutional Amendment Act of 2017, which introduced the GST, fundamentally altering India’s indirect tax history.
- The Treaty of Asunción, signed in 1991, is the foundational historical document that established the MERCOSUR trade bloc.
- The Protocol of Ouro Preto (1994) institutionalized MERCOSUR, giving it a legal personality and its current organizational structure.
- The India-MERCOSUR Framework Agreement of 2003 and the subsequent Preferential Trade Agreement (PTA) of 2009 form the historical basis for the current trade negotiations.
- The abolition of the Planning Commission in 2014 is a key historical event that states often cite as a turning point that increased their fiscal dependency on the Centre.
- The 15th Finance Commission’s decision to reduce the states’ share of central taxes from 42% to 41% is a recent historical factor in the fiscal devolution debate.
- The GST compensation regime, which guaranteed states a 14% annual revenue growth for five years, ended in 2025, marking a new chapter in fiscal federalism.
- The FOCEM (MERCOSUR Structural Convergence Fund), established in 2005, is a historical mechanism to reduce economic asymmetries among the bloc’s member nations.
- The origin of the South Atlantic Anomaly traces back to the 19th century when it was first identified, but its continuous study is a more recent historical scientific endeavor.
- The historical evolution of Centre-State financial relations in India, from a more centralized system to one of cooperative federalism, provides the backdrop for the current fiscal space discussions.
