🔆 Salween River

📍 Why in News?
✅ Alarming arsenic contamination has recently been detected in the Salween River.

📍 About the Salween River
▪️ Also known as:
✅ Nu River in China
✅ Thanlwin River in Myanmar

▪️ It is the second-longest river in Southeast Asia after the Mekong River.
▪️ It is also the longest undammed river in Southeast Asia.

📍 Origin and Course
▪️ Originates from the Tanggula Mountains on the Tibetan Plateau.
▪️ Flows through China, Myanmar and along parts of Thailand.
▪️ Finally empties into the Gulf of Martaban in the Andaman Sea.

📍 River Basin Distribution
✅ China – 53%
✅ Myanmar – 42%
✅ Thailand – 5%

📍 Major Tributaries
▪️ Moei River
▪️ Pang River
▪️ Teng River
▪️ Pawn River
▪️ Hka River
▪️ Hsim River

#GS1 #Geography #places_in_news

🔆 First-Ever Gene Therapy for Genetic Hearing Loss

📍 Why in News?
✅ The United States Food and Drug Administration has approved the first gene therapy for genetic hearing loss—Otarmeni, developed by Regeneron Pharmaceuticals.

📍 Key Highlights of the Therapy

▪️ Target: OTOF Gene Mutation
✅ The OTOF produces otoferlin, essential for converting sound vibrations into neural signals.
❌ Defective copies lead to severe-to-profound hearing loss (2–8% of inherited cases).

▪️ How Otarmeni Works
✅ A one-time biologic-device combination therapy.
✅ Uses dual AAV (Adeno-Associated Virus) vectors to deliver a functional gene.
✅ Restores otoferlin production in inner ear hair cells.
✅ Enables proper auditory signal transmission to the brain.

📍 What is Gene Therapy?

▪️ Gene therapy involves inserting or modifying genes to treat diseases.
▪️ Uses vectors (commonly viruses) to deliver therapeutic genes into target cells.
▪️ It targets the root genetic cause rather than symptoms.

📍 Significance

✅ First approved gene therapy for hearing loss
✅ Potential cure for inherited deafness
✅ One-time treatment vs lifelong management
✅ Opens new avenues for treating genetic disorders

📍 Concerns

▪️ High cost and accessibility issues
▪️ Long-term safety and durability yet to be fully assessed

📍 Conclusion
Gene therapy like Otarmeni marks a breakthrough in precision medicine, shifting healthcare from symptom management to genetic correction.

#GS3
#prelims
#science_technology
#science_and_technology

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🔆 Tathagata Relics of Lord Buddha

📍 Why in News?
✅ Exposition of sacred Tathagata relics of Gautama Buddha is set to take place in Ladakh.

📍 About Tathagata Relics

▪️ These relics represent the physical remains of Buddha (such as bone fragments, ashes) and sacred objects associated with him.
▪️ They are preserved in stupas and monasteries and hold deep spiritual significance.

📍 Meaning of ‘Tathagata’

▪️ A term used by Gautama Buddha to refer to himself.
▪️ Found in the Tripitaka of the Pali Canon.

✅ Interpreted as:
▪️ “The one thus-come”
▪️ “The one thus-gone”

📍 Philosophical Significance

▪️ Important in Mahayana Buddhism:
✅ Represents enlightenment and ultimate truth
✅ Linked to two lineages:
▪️ Textual transmission (teachings)
▪️ Realization transmission (spiritual experience)

▪️ Also relevant in Vajrayana traditions.

📍 Cultural & Religious Importance

✅ Symbol of reverence and devotion in Buddhism
✅ Represents continuity of Buddha’s teachings
✅ Associated with peace, compassion and protection

📍 Conclusion
Tathagata relics serve as powerful spiritual symbols, connecting devotees with the life, teachings and legacy of the Buddha.

#prelims
#art_and_culture

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🔆 How far is it correct to say that the First World War was fought essentially for the preservation of balance of power? (250 words)

📍 Introduction
First World War was fought between the Allied and Central Powers. While preservation of balance of power was a key factor, it alone cannot fully explain the outbreak.

📍 Balance of Power as a Cause

▪️ Alliance System
✅ Triple Entente aimed to counterbalance
Triple Alliance.

▪️ Germany’s Rise
✅ Rapid industrial and military expansion of Germany disturbed European equilibrium, alarming Britain and France.

▪️ Fear of Dominance
✅ Powers sought to prevent any single nation from achieving hegemony in Europe.

📍 Other Contributing Factors

▪️ Imperialism
✅ Rivalry over colonies in Africa and Asia intensified tensions.

▪️ Militarism
✅ Arms race and glorification of military power increased war preparedness.

▪️ Nationalism
✅ Ethnic tensions in the Balkans, especially Slavic nationalism, destabilised Europe.

▪️ Immediate Trigger
✅ Assassination of Archduke Franz Ferdinand in 1914 escalated into war.

📍 Evaluation
While balance of power politics created a fragile environment, deeper structural causes like nationalism, imperial rivalry and militarism made war inevitable. The alliance system converted a regional conflict into a global war.

📍 Conclusion
Thus, the war was partly about preserving balance of power, but it was equally driven by broader political, economic and ideological factors.

#history #prelims #mains

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🔆 Flex-Fuel Vehicles (FFVs)

📍 Why in News?
✅ Government plans to expand E100 ethanol blending and promote Flex Fuel Vehicles amid energy concerns linked to West Asia tensions.

📍 What are FFVs?

▪️ Vehicles with internal combustion engines that can run on:
✅ Petrol
✅ Ethanol (biofuel)
✅ Any blend (including E100)

📍 Key Features

▪️ Fuel Flexibility
✅ Can operate on multiple fuel combinations depending on availability

▪️ Engine Mechanism
✅ Equipped with fuel mix sensors and engine control modules
✅ Adjusts combustion based on ethanol–petrol ratio

▪️ Modified Components
✅ Fuel systems and injectors adapted to handle ethanol properties

▪️ Cost & Efficiency
✅ Ethanol (~₹60–62/litre) cheaper than petrol (>₹100/litre)
❌ Lower energy → higher consumption

📍 Economic & Agricultural Link

▪️ Ethanol produced from crops like sugarcane, maize, wheat
✅ Enhances farmers’ income
✅ Utilises surplus agricultural produce

📍 Significance

▪️ Reduces crude oil import dependence
▪️ Promotes clean energy and lowers emissions
▪️ Supports energy security and Aatmanirbharta
▪️ Strengthens rural economy

📍 Challenges

▪️ Lower mileage compared to petrol
▪️ Infrastructure for E100 still developing
▪️ Food vs fuel debate

📍 Conclusion
FFVs are a crucial step toward sustainable mobility, balancing energy security, environmental goals, and agricultural growth.

#GS3
#prelims
#science_technology
#science_and_technology

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🔆 CURRENT AFFAIRS – 25 APRIL 2026

🔆 STATES

📍 Heat Resilience Centre (Maharashtra)
✅ CoE-HRSC launched at IIM Nagpur
✅ Focus: Heat Action Plans, climate adaptation, sustainable cooling
✅ Linked with State Institute of Disaster Management
✅ Renewable targets: 52% (2030), 65% (2035)

📍 Mission for Aatmanirbharta in Pulses
✅ Bihar launches structured procurement initiative
✅ Target: 350 lakh tonnes production by 2030–31
✅ Focus crops: Tur, Urad, Masoor
✅ Aim: reduce imports & boost farmer income

🔆 INTERNATIONAL

📍 Strait of Malacca Importance
✅ Connects Indian Ocean & Pacific Ocean
✅ Handles ~22% of global maritime trade
✅ Major oil chokepoint; vulnerable to piracy & bottlenecks

🔆 INDIA & THE WORLD

📍 France Visa-Free Transit for Indians
✅ No airport transit visa required (from April 2026)
✅ Applies within international transit zone
✅ Reduces cost & simplifies travel

📍 India–Japan Smart City Data Partnership
✅ MoU for AI-ready urban systems
✅ Integrates construction data with IUDX platform
✅ Supports smart cities & AI use cases

📍 India Loses Bangladesh Corn Market
✅ Brazil overtakes India as top exporter
✅ Reason: ethanol blending ↑ domestic demand
✅ Shift from export to energy security

🔆 AGREEMENTS & MoUs

📍 Para Élan Initiative (India–France)
✅ Promotes inclusive education & para sports
✅ Targets ~10,000 students
✅ Collaboration: French Institute in India + PCI

📍 Sovereign AI Platform MoU
✅ BharatGen + L&T + L&T-Vyoma partnership
✅ Aim: build India’s AI compute infrastructure
✅ Includes chips, data centres & AI models

📍 India–Russia Logistics Pact (RELOS)
✅ Allows deployment of 3,000 troops, 5 warships, 10 aircraft
✅ Enhances defence logistics & overseas operations

🔆 APPOINTMENTS

📍 Key Updates
✅ Rajneesh Karnatak – tenure extended (Bank of India)
✅ Debadatta Chand – tenure extended (Bank of Baroda)
✅ NASSCOM Chairman: Srikanth Velamakanni
✅ Parminder Singh – CEO, Reliance Enterprise Intelligence Ltd

🔆 AWARDS & RECOGNITIONS

📍 General Upendra Dwivedi Honoured
✅ Inducted into US Army War College Hall of Fame
✅ 3rd Indian Army Chief to receive honour

🔆 BOOKS & AUTHORS

📍 New Book Launch
✅ “The Curious and The Classified” by Gen. M. M. Naravane

🔆 SPORTS

📍 FIFA Women’s Development Programme
✅ India selected among 12 countries
✅ Aim: improve commercial viability of women’s football

🔆 SCHEMEs

📍 NAMASTE Scheme Milestone
✅ ~90,000 sanitation workers profiled
✅ Focus: mechanisation & rehabilitation
✅ Ministries: Social Justice + Housing & Urban Affairs

🔆 IMPORTANT DAYS

📍 International Girls in ICT Day 2026
✅ Date: 23 April 2026
✅ Theme: AI for Development: Girls shaping the digital future
✅ Promotes women participation in tech

🔆 SUMMITS & CONFERENCES

📍 AZEC Plus Summit 2026 (Japan)
✅ Initiative: POWERR Asia (USD 10 billion)
✅ Aim: energy security & resilient supply chains
✅ Focus: diversification, stockpiling, reforms

🔆 SCIENCE & TECHNOLOGY

📍 Roman Space Telescope Update
✅ NASA telescope to study dark matter & exoplanets
✅ Will be placed ~1.5 million km from Earth
✅ High data transmission (~11 TB/day)

🔆 DEFENCE

📍 IAF Emergency Landing Facility
✅ Activated on Purvanchal Expressway (UP)
✅ Tested with fighter jets, transport aircraft & helicopters
✅ Enhances emergency response capability

#CurrentAffairs

🔆 Samrat Samprati

📍 Why in News?
✅ The Prime Minister inaugurated the Samrat Samprati Museum in Koba, Gandhinagar on Mahavir Jayanti.

📍 About Samrat Samprati

▪️ A Mauryan ruler and grandson of Ashoka
▪️ Son of Kunal and Kanchanmala

📍 Names & Sources

▪️ Also known as Indrapalit, Sangat, Vigatashok
▪️ Mentioned in Jain texts like:
▪️ Sampratikatha
▪️ Parishistaparva
▪️ Prabhavakcharita

📍 Contributions

▪️ Propagation of Jainism
✅ Played a major role in spreading Jainism across India
✅ Often called the “Jain Ashoka”

▪️ Promotion of Ahimsa
✅ Advocated non-violence and ethical living

▪️ Temple Construction
✅ Built and restored numerous Jain temples

📍 Significance

▪️ Strengthened Jain religious expansion after Mauryan period
▪️ Promoted ethical governance based on non-violence
▪️ Linked political power with religious and cultural patronage

📍 Conclusion
Samrat Samprati’s legacy reflects the fusion of statecraft with spiritual values, especially the spread of Jainism and ahimsa in ancient India.

#history #prelims #mains

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🔆 Yamuna River

📍 Why in News?
✅ The National Green Tribunal (NGT) issued notices over pollution in the Yamuna River at Mathura–Vrindavan, with water quality falling to “very poor” Category D.

📍 About Yamuna River

▪️ Naming
✅ Derived from Sanskrit word “Yama” meaning ‘twin’

▪️ Origin
✅ Yamunotri Glacier near Bandarpunch peaks

▪️ Length
✅ ~1,376 km

▪️ River System
✅ Second-largest tributary of the Ganga River
✅ Part of Ganga drainage system

📍 Course & States Covered

▪️ Flows through:
▪️ Uttarakhand, Himachal Pradesh, Haryana, Delhi, Uttar Pradesh

▪️ Forms boundary between Haryana and Uttar Pradesh

📍 Confluence

▪️ Meets Ganga at Triveni Sangam
✅ Major site of Kumbh Mela

📍 Tributaries

▪️ Right bank:
✅ Tons River, Chambal, Betwa, Ken

▪️ Left bank:
✅ Hindan, Rind, Sengar, Varuna

📍 Major Cities on Banks

▪️ Yamunotri, Paonta Sahib, Delhi, Noida, Mathura, Agra, Etawah, Prayagraj

📍 Major Projects

▪️ Canals: Western Yamuna Canal (Haryana), Eastern Yamuna Canal (UP), Agra Canal
▪️ Key Infrastructure: Hathnikund Barrage
▪️ Upcoming Projects: Renukaji Dam, Lakhwar Project, Kishau Dam

📍 Concerns

▪️ Severe pollution in urban stretches (Delhi–Mathura)
▪️ Industrial discharge, sewage and low flow
▪️ Ecological degradation

📍 Conclusion
The Yamuna is vital for northern India’s ecology and economy, but requires urgent conservation measures to restore its health.

#GS1 #Geography #places_in_news

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🔆 How did the colonial rule affect the tribals in India and what was the tribal response to the colonial oppression?

📍 Introduction
Colonial rule disrupted the socio-economic and cultural fabric of tribal societies, replacing their autonomous systems with exploitative administrative and economic structures.

📍 Impact of Colonial Rule on Tribals

▪️ Displacement & Land Alienation
✅ Introduction of zamindari and private property systems led to loss of tribal lands

▪️ Forest Policies
✅ Forest Acts restricted access to forests, undermining livelihood and traditional rights

▪️ Exploitative Labour Practices
✅ Forced into plantations, mining, and infrastructure work under harsh conditions

▪️ Economic Exploitation
✅ Moneylenders and traders trapped tribals in debt cycles

▪️ Cultural Erosion
✅ Imposition of new legal, religious and educational systems weakened tribal identity

📍 Tribal Response to Colonial Oppression

▪️ Armed Revolts
✅ Santhal Rebellion, Munda Rebellion, Koya uprising

▪️ Guerrilla Warfare
✅ Use of terrain knowledge to resist colonial forces

▪️ Assertion of Rights
✅ Movements to reclaim land and forest rights

▪️ Cultural Resistance
✅ Preservation of customs, traditions and identity

📍 Conclusion
Colonial policies led to marginalisation of tribals, but their resistance—both violent and non-violent—reflected a strong assertion of identity and rights, shaping later tribal movements in India.

#history #prelims #mains

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