Subject: International Relations / Security (Military Exercises, Defence Cooperation, Indo-Pacific Security)

Why in News?

The Indian Air Force (IAF) is participating in Exercise Pitch Black 2026, a premier multinational air combat exercise hosted by Australia. The exercise aims to enhance interoperability, operational readiness, and cooperation among participating air forces.

About Exercise Pitch Black

• Exercise Pitch Black is a biennial multinational air warfare exercise hosted by the Royal Australian Air Force (RAAF). 
• Conducted primarily from RAAF Base Darwin and RAAF Base Tindal in Northern Australia. 
• First held in 1981 as a bilateral exercise and later expanded into a large multinational event. 
• The name “Pitch Black” refers to the night-time flying operations conducted under dark conditions. 

Objectives

• Enhance combat readiness and operational capabilities. 
• Improve interoperability among participating air forces. 
• Practice complex air warfare scenarios. 
• Strengthen defence partnerships in the Indo-Pacific region. 
• Facilitate exchange of tactics, techniques, and best practices. 

India’s Participation

• The Indian Air Force (IAF) is a regular participant in recent editions. 
• Participation showcases India’s growing role in regional security and defence cooperation. 
• Enables IAF personnel to train in: 
  • Beyond Visual Range (BVR) combat scenarios 
  • Air-to-air operations 
  • Air-to-ground missions 
  • Large-force employment exercises 

Australia: Strategic Location

• Northern Australia provides vast airspace suitable for large-scale combat simulations. 
• Located at the crossroads of the Indian Ocean and Pacific Ocean, making it strategically significant for Indo-Pacific security architecture. 

UPSC-Oriented Analysis

Exercise Pitch Black reflects the growing importance of:

• Indo-Pacific strategic cooperation 
• Defence diplomacy 
• Multilateral military exercises 
• Australia–India defence relations 
• Interoperability among partner nations 

Source/Reference:

https://www.thehindu.com/news/national/iaf-to-participate-in-exercise-pitch-black-2026-in-australia/article71110194.ece

Subject: Economy / Art & Culture (Geographical Indications (GI), Intellectual Property Rights, Handicrafts and Traditional Products)

Why in News?

Three traditional products from Jharkhand have recently been granted Geographical Indication (GI) tags:

1. Bhagaiya Silk 
2. Kuchai Silk 
3. Munda Jewellery and Bamboo Craft 

These additions highlight the state’s rich tribal heritage and traditional craftsmanship.

What is a Geographical Indication (GI) Tag?

• A GI is a form of Intellectual Property Right (IPR) used to identify goods originating from a specific geographical region. 
• The product’s quality, reputation, or characteristics are essentially linked to its place of origin. 
• GI registration in India is governed by the Geographical Indications of Goods (Registration and Protection) Act, 1999. 
• Administered by the GI Registry, Chennai under the Department for Promotion of Industry and Internal Trade (DPIIT). 

New GI-Tagged Products

1. Bhagaiya Silk

• Produced mainly in Godda district of Jharkhand. 
• Traditionally woven by local artisan communities. 
• Known for its fine texture, durability, and unique weaving techniques. 
• Plays an important role in the rural economy. 

2. Kuchai Silk

• Originates from Kuchai region of Saraikela-Kharsawan district. 
• Derived from indigenous silkworm varieties. 
• Recognized for its natural sheen and eco-friendly production process. 

3. Munda Jewellery and Bamboo Craft

• Associated with the Munda tribal community. 
• Includes traditional ornaments and bamboo-based handicrafts. 
• Reflects indigenous knowledge, tribal identity, and cultural heritage. 

Significance of GI Tags

Economic Benefits

• Enhances market value of traditional products. 
• Protects artisans from imitation products. 
• Promotes exports and rural livelihoods. 

Cultural Preservation

• Safeguards traditional knowledge and craftsmanship. 
• Encourages continuation of indigenous practices. 

Regional Development

• Boosts tourism and local branding. 
• Generates employment opportunities in rural and tribal areas. 

GI Tag vs Patent

UPSC-Oriented Analysis

The new GI tags strengthen:

• Protection of tribal and indigenous products. 
• Promotion of local crafts under the One District One Product (ODOP) and Vocal for Local initiatives. 
• Recognition of India’s cultural and economic diversity. 

Source/Reference:

https://www.tribuneindia.com/news/india/jharkhands-bhagaiya-kuchai-silk-munda-jewellery-and-bamboo-craft-get-gi-tag/#google_vignette

Subject: Geography (Physical Geography) & Environment (Volcanism, Igneous Landforms, UNESCO World Heritage Sites, Geological Heritage)

Why in News?

A recent study by the British Geological Survey (BGS) and the Geological Survey of Northern Ireland (GSNI) revealed that the volcanic activity responsible for the formation of the Giant’s Causeway occurred over 5.5 million years, significantly shorter than the previously estimated 13.5 million years. The research linked the site to the North Atlantic Igneous Province (NAIP), a globally significant volcanic event that occurred around 60 million years ago. 

About Giant’s Causeway

• Located on the Antrim Plateau coast, Northern Ireland (United Kingdom). 
• Consists of approximately 40,000 interlocking basalt columns extending into the sea. 
• Formed by the cooling and contraction of basaltic lava, producing characteristic hexagonal columnar joints. 
• Dates back to the Paleogene Period (about 50–60 million years ago). 
• Designated a UNESCO World Heritage Site in 1986. 

North Atlantic Igneous Province (NAIP)

• Massive volcanic province formed during the opening of the North Atlantic Ocean. 
• Extends across: 
  • Northern Ireland 
  • Scotland 
  • Greenland 
  • Faroe Islands 
  • Iceland region. 

UPSC-Oriented Analysis

The Giant’s Causeway is a classic example of extrusive igneous landforms and columnar basalt formation. UPSC may combine questions on:

• Volcanic landforms and rock types. 
• UNESCO natural heritage sites. 
• Geological processes such as cooling, contraction, and joint formation. 
• Large Igneous Provinces (LIPs) and continental breakup events. 

Source/Reference:

https://www.theguardian.com/science/2026/jun/15/globally-significant-volcanic-event-giants-causeway-scientists

Subject: Environment & Ecology (Soil Ecology, Symbiotic Relationships, Biofertilizers, Carbon Sequestration, Biodiversity Conservation)

Why in News?

A recent study published in Science produced the first global map of Arbuscular Mycorrhizal Fungi (AMF), revealing that these underground fungal networks extend over 110 quadrillion km and play a critical role in nutrient cycling, plant growth, and climate regulation. 

What are Arbuscular Mycorrhizal Fungi (AMF)?

• AMF are root-associated symbiotic fungi belonging to the phylum Glomeromycota. 
• They form mutualistic associations with about 70–80% of terrestrial vascular plants. 
• They are obligate biotrophs, meaning they depend on living plant roots for survival. 
• Inside plant roots, they form specialized structures called arbuscules, which facilitate nutrient exchange. 

Ecological Significance

Natural Biofertilizers

• Supply plants with: 
  • Phosphorus 
  • Nitrogen 
  • Water 
  • Micronutrients 
• Receive carbohydrates (carbon compounds) from plants in return. 

Climate Regulation

• AMF networks store nearly 300 million tonnes of carbon and contribute significantly to soil carbon sequestration. 
• Help remove billions of tonnes of CO₂-equivalent annually from the atmosphere. 

Key Findings of the Global Mapping Study

• Grasslands account for nearly 40% of global AMF networks. 
• Major hotspots include: 
  • Banni Grasslands (India) 
  • Tibetan Plateau 
  • South Sudan’s Sudd wetlands. 

UPSC-Oriented Analysis

AMF links ecology, agriculture, soil conservation, and climate change. UPSC may ask about:

• Types of symbiotic relationships. 
• Biofertilizers and sustainable agriculture. 
• Role of fungi in carbon sequestration. 
• Differences between mycorrhizae and nitrogen-fixing bacteria. 

Source/Reference:

https://www.thehindu.com/sci-tech/energy-and-environment/the-giant-world-of-fungi/article71100234.ece

Subject: Science & Technology / Health (Human Diseases, Autoimmune Disorders, Gastrointestinal Diseases)

Why in News?

A recent study has found that even after inflammation subsides, intestinal cells in Crohn’s disease patients retain long-lasting molecular changes (“molecular scars”), which may explain disease recurrence and aid the development of targeted therapies.

What is Crohn’s Disease?

• Crohn’s disease is a chronic inflammatory bowel disease (IBD) that causes inflammation of the digestive tract. 
• It is an immune-mediated disorder in which the body’s immune system mistakenly attacks the gastrointestinal (GI) tract. 
• The disease can affect any part of the digestive tract, from the mouth to the anus, though it most commonly affects the end of the small intestine (ileum) and the beginning of the large intestine. 

Key Features

• Characterized by transmural inflammation, i.e., inflammation extending through the entire thickness of the intestinal wall. 
• The disease often occurs in cycles of: 
  • Flare-ups (active disease) 
  • Remission (symptom-free periods) 
• It is a non-communicable disease and does not spread from person to person. 

Symptoms

• Persistent diarrhea 
• Abdominal pain and cramping 
• Rectal bleeding 
• Fatigue 
• Weight loss 
• Reduced appetite 
• Fever (during active inflammation) 

Causes and Risk Factors

The exact cause remains unknown, but major contributing factors include:

Genetic Factors

• Family history increases susceptibility. 
• Several genes associated with immune regulation have been linked to the disease. 

Immune System Dysfunction

• Abnormal immune response against intestinal microbes. 

Environmental Factors

• Smoking 
• Urban lifestyle 
• Dietary influences 
• Alterations in gut microbiota 

Complications

• Intestinal strictures (narrowing of the intestine) 
• Fistulas (abnormal connections between organs) 
• Abscesses 
• Malnutrition 
• Increased risk of colorectal cancer in long-standing cases 

Diagnosis

• Colonoscopy with biopsy 
• Endoscopy 
• CT/MRI imaging 
• Blood and stool tests 

Treatment

There is currently no permanent cure, but treatment aims to control inflammation and maintain remission.

Common Therapies

• Anti-inflammatory drugs 
• Immunosuppressants 
• Biologic therapies (targeted immune treatments) 
• Nutritional management 
• Surgery in severe cases 

Crohn’s Disease vs Ulcerative Colitis

UPSC-Oriented Analysis

Crohn’s disease is important from the perspective of:

• Emerging non-communicable diseases 
• Human immune system disorders 
• Gut microbiome research 
• Precision medicine and biologics 

Sources:

https://www.news-medical.net/news/20260615/Gut-cell-study-discovers-lasting-molecular-scars-of-Crohns-disease.aspx

Subject: Environment & Ecology / Biodiversity (Bryophytes, Plant Taxonomy, Western Ghats Biodiversity)

Why in News?

Researchers from Kerala have discovered a new genus of bryophyte named Indocolea devendrae in the forests of northern Kerala. The discovery is significant because entirely new plant genera are rarely identified in India. 

About Indocolea devendrae

• It is a newly identified liverwort belonging to the group of plants known as bryophytes. 
• Discovered in the forests of northern Kerala. 
• Named in honour of Dr. Devendra Kumar Singh, a noted bryologist associated with the Botanical Survey of India (BSI). 
• A distinctive feature is that it grows on the fungus Phellinus fastuosus, which develops on tree trunks. 

Why is the Discovery Important?

• Indocolea represents an entirely new genus discovered in India. 
• Such discoveries improve understanding of: 
  • Plant evolution 
  • Ecosystem diversity 
  • Conservation priorities in biodiversity hotspots 
• Highlights the rich but still underexplored biodiversity of the Western Ghats. 

What are Bryophytes?

Bryophytes are the simplest land plants and are often called the “amphibians of the plant kingdom” because they require water for reproduction.

Characteristics

• Non-vascular plants (lack xylem and phloem) 
• Reproduce through spores 
• No true roots, stems, or leaves 
• Usually found in moist and shaded habitats 

Major Groups

1. Mosses 
2. Liverworts 
3. Hornworts 

What are Liverworts?

• Liverworts are small, non-vascular, spore-producing plants closely related to mosses and hornworts. 
• They possess a flattened body called a thallus instead of true roots, stems, and leaves. 
• Absorb water and nutrients directly through their surface. 

Ecological Importance

• Help retain moisture in ecosystems. 
• Aid in soil formation and rock weathering. 
• Provide microhabitats for small organisms. 
• Act as indicators of environmental health. 

Previous New Plant Genera Reported from India

Western Ghats: Biodiversity Significance

• One of the world’s eight hottest biodiversity hotspots. 
• Recognized as a UNESCO World Heritage Site. 
• Home to a high degree of endemism in plants and animals. 

Sources:

https://www.govjobs.net.in/New-Bryophyte-Genus-Indocolea-devendrae-Discovered-in-Kerala-Forests-afid-4766

GS Paper III – Security (Defence) | GS Paper III – Economy (Industrial Policy)
Defence Production; Indigenisation; Defence Exports; Procurement Reforms; Defence Diplomacy

Introduction

India’s defence sector underwent a major transformation between 2014 and 2026. The defence budget grew from ₹2.53 lakh crore to ₹7.85 lakh crore, indigenous production rose to ₹1.78 lakh crore, and exports surged from ₹686 crore to ₹38,424 crore. Reforms such as DAP 2020, Positive Indigenisation Lists, and iDEX boosted self-reliance, innovation, and defence diplomacy, strengthening India’s position as a global defence partner.

Main Body

Rising Defence Budgets and Capital Expenditure

• Defence budget: ₹2.53 lakh crore (FY 2013–14) → ₹7.85 lakh crore (FY 2026–27).
• Capital expenditure: ₹94,588 crore (2014–15) → ₹2.19 lakh crore (2026–27).
• R&D allocation: ₹13,716 crore (FY 2014–15) → ₹29,100 crore (FY 2026–27) – over 112% increase.
• 25% of defence R&D budget opened to industry, start-ups, and academia (2022-23).

Innovations for Defence Excellence (iDEX)

• iDEX engages MSMEs, startups, individual innovators, research institutions, and academia.
• Scheme outlay: ₹498.78 crore (2021–22 to 2025–26).
• ADITI Scheme outlay: ₹750 crore (2023–24 to 2025–26).
• By March 2026: 676 startups/MSMEs/innovators engaged; 551 design and development contracts signed.

Technology Development Fund (TDF):

• Grants up to ₹50 crore for critical defence technologies.
• Additional corpus of ₹500 crore sanctioned for emerging technologies.
• 80 projects worth ₹334 crore being implemented (June 2026).

Development cum Production Partner (DcPP) Model:

• DRDO partners with Indian industry for technology transfer and production.
• 134 companies partnered as DcPPs or Production Agencies.
• 2,180 technology transfer agreements signed.
• Over 2,780 IPRs opened for use by Indian industry.

Defence Acquisition Reforms

Defence Procurement Procedure (DPP) 2016:

• Institutionalised and streamlined procurement processes.
• Promoted Make in India in defence.

Defence Acquisition Procedure (DAP) 2020:

• Major reforms for indigenous manufacturing.
• Increased opportunities for Indian companies.
• Encouraged domestic design, development, and production.

Defence Procurement Manual (DPM) 2025:

• Streamlined revenue procurement (worth nearly ₹1 lakh crore).
• Faster approvals, relaxed penalties for indigenous projects, assured long-term orders.

DAP 2026 (Draft):

• Simpler acquisition categories; stronger support for indigenous design and development.
• Recommends higher indigenous content requirements (up to 60%).

Indigenous Production and Industrial Capacity

• Defence production: ₹46,429 crore (2014–15) → ₹1.78 lakh crore (2025–26) – 110% increase since FY 2020-21.
• DPSUs/PSUs: 76% of production; private sector share: 24% (greater industry participation).
• Defence industrial licences: 258 (2015) → 834 (March 2026) – more than tripled.
• Ecosystem: 16 DPSUs, ~500 licensed defence companies, ~17,000 MSMEs.
• Ordnance Factory Board dissolved (2021); reorganised into 7 new DPSUs.

Defence Industrial Corridors:

• Uttar Pradesh: investment commitments ₹42,057 crore; grounded ₹4,409 crore (April 2026).
• Tamil Nadu: investment commitments ₹32,699 crore; grounded ₹6,446 crore.

Defence Exports

• Exports: ₹686 crore (2013–14) → ₹38,424 crore (2025–26) – over 5500% growth.
• Exports to over 80 countries; 145 exporting firms.
• Target: ₹50,000 crore by 2029.
• Nearly 65% of defence equipment now produced domestically (import dependence was 65–70% earlier).

Key Operational Milestones

• Mission Shakti (27 March 2019): Anti-satellite capability – India joined select group.
• Mission Divyastra (11 March 2024): Long-range missile with multiple warheads to different targets.
• Operation Sindoor (2025): Indigenous systems (Akash missiles, BrahMos, anti-drone systems) supported armed forces.
• Tejas: Final operational clearance (February 2019); 83 aircraft approved for induction.
• Arjun Mk-IA: Inducted (February 2021).
• Agnipath Scheme (15 June 2022): Recruits youth as Agniveers for four-year service; creates youthful, tech-savvy, combat-ready force.

Defence Diplomacy and Strategic Partnerships

India-US:

• LEMOA (2016), COMCASA (2018), BECA (2020).
• Major Defence Partner; STA-1 status.
• iCET (2023) → TRUST (2025); 10-year defence partnership framework (October 2025).

India-Russia:

• IRIGC-M&MTC; S-400 air defence systems; Su-30MKI upgrades.
• Exercise Indra (tri-services).
• Focus on co-production and MRO capabilities.

India-EU:

• Security and Defence Partnership signed (27 January 2026).
• Annual India–EU Security and Defence Dialogue; India–EU Defence Industry Forum.

India-France:

• Rafale deal (2016); 26 Rafale-Marine approved (2023).
• All six Kalvari-class Scorpene submarines delivered (2025).
• Horizon 2047 Defence Industrial Roadmap.

India-Japan:

• ACSA (2020); Exercise JIMEX; Special Strategic and Global Partnership.

India-UAE:

• Strategic Defence Partnership (January 2026); co-production, special operations, counter-terrorism.

India-Australia:

• Comprehensive Strategic Partnership (2020); Defence Ministers’ Dialogue.

Multilateral Engagements:

• QUAD: central pillar; Exercise Malabar; Quad-at-Sea Mission (2025).
• SCO: championing counter-terrorism; zero tolerance for terrorism.
• ADMM-Plus: freedom of navigation; Act East Policy.
• SAGAR (2015) and MAHASAGAR (March 2025): India as net security provider in IOR.

Conclusion

India’s defence sector transformed between 2014 and 2026 through higher spending, rising indigenous production, and record defence exports. Reforms such as DAP 2020, indigenisation initiatives, iDEX, and enhanced FDI boosted self-reliance and innovation. Combined with key military achievements and stronger defence diplomacy, India has emerged as a credible defence partner and manufacturing hub, advancing towards Vision 2047.

UPSC Mains Practice Question

1. India’s defence production and exports have grown significantly in the last decade. Examine the reforms behind this transformation. How has defence diplomacy supported this progress? (250 words, 15 marks)

https://www.pib.gov.in/PressReleasePage.aspx?PRID=2273854&reg=3&lang=1

GS Paper III – Environment (Water Resources) | GS Paper II – Governance (Urban)
Urban Water Crisis; Groundwater Depletion; Wastewater Treatment; Rainwater Harvesting; Demand-Side Management

Introduction

Heat waves across India have been intensified by severe water shortages caused by groundwater depletion and declining reservoir levels. While climate change is a factor, unsustainable water use, urban over-extraction, and inadequate water management have deepened the crisis. Warnings by NITI Aayog and groundwater assessments highlight the need for long-term structural reforms to ensure water security.

Main Body

The Crisis: Structural, Not Just Seasonal

The CWMI Warning (2018):

• Indian cities are living beyond their hydrological means.
• Timelines may not have been accurate, but the warning should have prompted course correction.

Groundwater Oversaturation:

• Jal Shakti Ministry’s Dynamic Groundwater Resources Assessment flagged the issue.
• Aquifers are being depleted faster than they can be replenished.

Reservoir Levels:

• Falling reservoir levels across the country.
• Heat waves and rising temperatures increase evaporation losses.

The Problem:

• Municipal and state-level authorities treat every crisis as an isolated event.
• Very little has been done to address structural reasons for water shortfall during the dry season.

Urban India’s Water Inefficiency: Root Causes

Dilapidated Distribution Networks:

• Old, leaky pipes lose significant water before it reaches consumers.
• Non-revenue water (NRW) is high – water that is produced but not billed.

Inadequate Metering:

• Many urban households and industries are not metered.
• Without metering, there is no incentive for conservation.

Poor Municipal Governance:

• Weak institutional capacity for water management.
• Lack of coordination between agencies (water supply, sewerage, stormwater drainage).

Untreated Wastewater:

• Most cities do not treat wastewater to a level where it can be reused.
• Reuse potential for agriculture, industry, and non-potable urban uses is largely untapped.

Underharvesting of Rainwater:

• Rainwater harvesting is not enforced or implemented effectively.
• Urban landscapes are designed to drain water away, not retain it.

The Policy Gap: Supply-Side vs. Demand-Side Management

Mihir Shah Committee (2016):

• “The focus of water policy in independent India had been on augmenting supplies with little attention being paid to the demand-side management of water.”
• This policy direction did play a major role in meeting food-security imperatives.
• However, there has been little emphasis on institutional innovations in the water sector.

Atal Bhujal Yojana:

• Early steps to encourage efficient use of water in agriculture.
• Demand-side management through community participation and groundwater regulation.

What Is Still Missing:

• Scientific analyses of water use at the household and industrial level.
• Prevention of overexploitation by the well-heeled (large households, high-consumption industries).
• Progressive water pricing to incentivise conservation.

Nature-Based Solutions: From Grey to Green Infrastructure

Grey Infrastructure (Drains and Pipes):

• Traditional approach: pipes, drains, treatment plants.
• Necessary but insufficient and expensive to maintain.

Nature-Based Solutions:

• Lake restoration projects in Mumbai and Bengaluru (welcome endeavours).
• Need to be taken up at scale to have meaningful impact.

China’s Sponge City Project:

• Uses urban landscapes and green infrastructure.
• Permeable pavements, green roofs, rain gardens, constructed wetlands.
• Promotes natural retention of rainwater, reduces flooding, and recharges groundwater.

India’s Gap:

• India still lacks a concerted policy like the Sponge City project.
• Cities that get flooded during monsoons shouldn’t be parched in summers.

Way Forward: A Comprehensive Urban Water Strategy

1. Demand-Side Management:

• Universal metering of all water connections (households, industries, commercial).
• Progressive water pricing (higher tariffs for higher consumption).
• Public awareness campaigns on water conservation.
• Incentives for water-efficient fixtures and appliances.

1. Supply-Side Efficiency:

• Leak detection and repair in distribution networks (reduce NRW).
• Upgrading and expanding wastewater treatment capacity.
• Mandatory wastewater reuse for non-potable purposes (flushing, gardening, industrial cooling).
• Mandatory rainwater harvesting in all new buildings and retrofitting in existing ones.

1. Institutional Reforms:

• Single agency for urban water management (water supply, sewerage, stormwater drainage).
• Strengthen municipal governance with technical and financial capacity.
• Regulatory oversight with penalties for over-extraction and pollution.

1. Nature-Based Solutions at Scale:

• Adopt a national “Sponge City” programme adapted to Indian conditions.
• Lake and wetland restoration in all major cities.
• Permeable pavements and green infrastructure in urban planning.
• Integration of water management with urban development plans.

Conclusion

India’s urban water crisis is rooted in structural mismanagement rather than climate change alone. Despite warnings from NITI Aayog and groundwater assessments, cities continue to overexploit aquifers while facing leaky distribution systems, poor governance, inadequate wastewater treatment, and limited rainwater harvesting. Experts have stressed the need for demand-side water management, large-scale lake restoration, and integrated urban water policies to build long-term resilience.

UPSC Mains Practice Question

1. Urban water stress in India is largely a result of structural and governance failures rather than climate change alone. Examine the causes of this crisis and suggest measures for sustainable urban water management. (250 words, 15 marks)

https://indianexpress.com/article/opinion/editorials/indian-cities-need-to-rethink-their-water-future-10743155/