Archives


(PRELIMS  Focus)


Dipturus dhritiae: New Deep-Sea Skate from India’s Arabian Sea

Environment & Ecology + Science & Technology

Why in News?

Scientists from the Zoological Survey of India (ZSI), in collaboration with ICAR-CMFRI and international experts, recently discovered and described Dipturus dhritiae, a new species of deep-sea skate from the southeastern Arabian Sea under the Ministry of Earth Sciences’ Deep Ocean Mission.

About Dipturus dhritiae

Conservation Significance

Deep-sea skates and rays are vulnerable to overexploitation because of their slow reproduction, low reproductive output and slow population recovery. The discovery highlights the relatively unexplored biodiversity of India’s deep-sea ecosystems.

UPSC Prelims Analysis

Likely MCQs may test the organism type, discovery location, associated institutions and Deep Ocean Mission. Remember: a skate is a cartilaginous fish related to sharks and rays, not a bony fish. Static–dynamic linkage: deep-sea exploration → taxonomy → marine biodiversity → conservation of vulnerable species.

Source/Reference:

https://timesofindia.indiatimes.com/city/kolkata/zsi-scientists-discover-new-deep-sea-skate-species-in-arabian-sea/amp_articleshow/133684933.cms

 


Lohit River: The ‘River of Blood’ in India’s Eastern Himalayas

Indian Geography + Environment

Why in News?

The Lohit River was recently in news after a vehicle carrying passengers fell into the river in Arunachal Pradesh, resulting in casualties and missing persons.

About Lohit River

Why is it called the ‘River of Blood’?

The Lohit often acquires a reddish appearance due to iron-rich lateritic soil and sediments carried from the Lohit Valley and Mishmi Hills, particularly during periods of high flow.

Important Tributaries

Other Important Fact

Parashuram Kund, an important Hindu pilgrimage site, is located on the lower reaches of the Lohit River.

UPSC Prelims Analysis

Possible MCQs may test the origin, states traversed, tributary relationship with Brahmaputra and map location in Arunachal Pradesh. Static–dynamic linkage: Eastern Himalayas → transboundary rivers → Brahmaputra drainage system → strategic geography of Arunachal Pradesh.

Source/Reference: 

https://www.aninews.in/news/national/general-news/one-dead-six-injured-three-missing-after-vehicle-falls-into-lohit-river-in-arunachal20260815203902/


Mission Rangeen Machhli 2031: Blueprint for India’s Ornamental Fisheries

Economy + Environment & Ecology

Why in News?

Vice President C. P. Radhakrishnan recently released the “Mission Rangeen Machhli 2031” Strategic Action Plan for Ornamental Fisheries Development at a Fisheries Outreach Programme in Agatti, Lakshadweep, on 31 August 2026.

About the Mission

Key Features

Lakshadweep Connection

Lakshadweep has over 300 ornamental fish species and significant potential for sustainable ornamental fisheries. The islands possess around 4,200 sq km of lagoon area and an EEZ of nearly 4 lakh sq km, making them important to India’s Blue Economy.

UPSC Prelims Analysis

Likely MCQs may test the nodal ministry, nature of the initiative, launch location and its focus on ornamental fisheries. Static–dynamic linkage: marine biodiversity → sustainable aquaculture → fisheries livelihoods → exports → Blue Economy.

Source/Reference:

https://ddindia.co.in/2026/08/v-p-radhakrishnan-releases-mission-rangeen-machhli-2031-in-lakshadweep-calls-for-sustainable-fisheries-led-blue-economy/


Myristica Swamps: Ancient ‘Living Fossil’ Wetlands of the Western Ghats

Environment & Ecology

Why in News?

A recent study highlighted that the rare Myristica Swamps of the Western Ghats are on the cusp of extinction, mainly due to habitat conversion, logging and human interference.

What are Myristica Swamps?

Ecological Significance

Major Threats

Logging + agricultural conversion + plantations + habitat fragmentation → rapid ecosystem decline. Recent concerns particularly relate to conversion into paddy fields and commercial plantations.

UPSC Prelims Analysis

Likely MCQs may test the plant family, freshwater nature, geographical distribution and ecological functions. A key trap: Myristica Swamps are not confined exclusively to the Western Ghats. Static–dynamic linkage: wetland conservation → biodiversity protection → climate resilience → water security.

Source/Reference: 

https://www.thehindu.com/sci-tech/science/rare-freshwater-swamps-in-the-western-ghats-are-on-the-cusp-of-extinction/article71383842.ece

 

 


Typhon Missile System: America’s Mobile Mid-Range Strike Capability

Science & Technology + International Relations

Why in News?

Russia recently warned Japan over the deployment of the U.S. Typhon Missile System during joint military exercises involving the United States, Japan and Australia, calling the deployment a threat to Russian security.

About the Typhon Missile System

Missiles Launched

  1. SM-6: Can engage targets at ranges exceeding approximately 320 km.
    2. Tomahawk Cruise Missile: Provides long-range precision strike capability of around 1,500 km.

The system can target both land and maritime threats, supporting precision land attacks and sea-denial operations.

Key Components

UPSC Prelims Analysis

Likely MCQs may test whether Typhon is developed by the U.S. (not Japan), its classification as a surface-to-surface system, and the missiles it can launch. Static–dynamic linkage: missile technology → Indo-Pacific military balance → Japan-U.S. defence cooperation → regional strategic deterrence.

Source/Reference: 

https://www.wionews.com/videos/russia-sees-red-over-deployment-of-typhon-missile-system-1788286833103


Peptides: Tiny Amino-Acid Chains and the Emerging ‘Biohacking’ Debate

Science & Technology + Health

Why in News?

A proposed “Peptide Party” in Bengaluru was cancelled after the Karnataka Food Safety and Drug Administration sought details regarding the composition, dosage, source, regulatory status and intended use of peptide preparations proposed at the event. The episode highlighted concerns regarding unregulated wellness and biohacking products.

What are Peptides?

Medical and Scientific Significance

Peptide-based medicines are used in areas such as diabetes, cancer treatment and metabolic disorders. However, every peptide is not automatically an approved medicine; safety and efficacy depend on scientific evidence, clinical trials and regulatory approval.

Regulatory Concerns

Some products marketed for weight loss, muscle growth, anti-ageing and recovery may lack adequate human clinical evidence. Depending on their composition and intended use, peptide preparations may fall under the regulatory framework of the Drugs and Cosmetics Act, 1940.

UPSC Prelims Analysis

Likely MCQs may test the relationship between amino acids, peptides and proteins, and distinguish approved peptide medicines from unregulated wellness products. Static–dynamic linkage: biochemistry → biotechnology → pharmaceuticals → drug regulation and public health.

Source/Reference:

https://www.thehindu.com/sci-tech/health/why-was-a-peptide-party-banned-in-bengaluru-explained/article71413555.ece

 

 

 


 


(MAINS Focus)


Semicon 2.0: India's ₹1.27 Lakh-Crore Push for Chip Design

GS III – Science & Technology / GS III – Economy
Semiconductor Ecosystem, Indigenous Innovation, and Strategic Autonomy

 

Introduction

Semicon 2.0, with a ₹1.27 lakh crore outlay, shifts India’s semiconductor strategy towards chip design and indigenous IP. It aims to promote fabless companies, strategic technologies and skilled talent, strengthening India’s semiconductor ecosystem and technological self-reliance.

 

Chip Design: The Core of Semicon 2.0

Strategic Technologies Track

Commercial Chip Design Track

Deployment-Linked Incentive

 

Broader Ecosystem Support

Equipment and Materials

Fabrication and Packaging

Talent Development

 

Progress Under Semicon 1.0

Manufacturing Projects

Investment Projection

Challenges

Way Forward

 

Conclusion

Semicon 2.0 represents a strategic shift from manufacturing to chip design, with ₹1.27 lakh crore outlay to build Indian-owned IP and fabless companies. It offers seed funding, equity co-investment, royalty financing, and deployment-linked incentives, while expanding eligibility to OCI-owned companies. The programme also supports equipment, materials, talent development, and a reduced capex for fabs/packaging. While Semicon 1.0 achieved 12 manufacturing projects, Semicon 2.0 aims to catalyse over ₹5 lakh crore investment. Success will depend on talent development, global partnerships, and market adoption.

 

Practice Question

  1. Semicon 2.0 shifts India’s semiconductor strategy from manufacturing to chip design, aiming to build Indian-owned IP and fabless companies. Critically examine the provisions, incentives, and challenges of India’s new semiconductor mission. (250 words, 15 marks)

 

https://indianexpress.com/article/explained/explained-sci-tech/semicon-2-push-chip-semiconductor-design-incentives-10858657/?ref=iers_storiesyoulike


Districts as Export Hubs: Taking India's Exports to Every District

GS III – Economy / GS II – Governance
Export Promotion, MSME Development, and Inclusive Growth

 

Introduction

India’s goods and services exports reached a record US$863.11 billion in 2025–26. The Districts as Export Hubs (DEH) initiative, building on ODOP, aims to make over 770 districts export centres by promoting locally competitive products, strengthening MSMEs, generating jobs, and enabling more inclusive export growth.

 

Evolution and Institutional Architecture

From ODOP to DEH

Institutional Framework

Convergence Framework

 

Building District-Level Export Ecosystems

Product Mapping

Capacity Building and Market Access

Grassroots Initiatives for Development (GRID)

Focused Implementation (From 1 June 2026)

 

Impact and Success Stories

Tiruppur Textile Cluster

Other Successes

Challenges

Way Forward

 

Conclusion

The Districts as Export Hubs (DEH) initiative promotes inclusive, district-led export growth by leveraging ODOP and connecting local producers to global markets. Covering 770+ districts, it can transform districts into engines of trade, investment and employment, supporting India’s US$1 trillion export target.

 

Practice Question

  1. The Districts as Export Hubs Initiative marks a paradigm shift in India’s export strategy, moving from concentrated clusters to inclusive, district-led growth. Critically examine the framework, achievements, and challenges of the DEH Initiative. (250 words, 15 marks)

 

https://www.pib.gov.in/PressReleaseDetail.aspx?PRID=2305826&reg=3&lang=1


 

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