#1SCIENCE & SPACE
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Magnetorheological Fluid

ЁЯФ╣ Why in News & Recent Development

Scientists at the Indian Institute of Technology (IIT) Patna have developed an innovative hybrid magneto-rheometer designed to significantly advance basic research and practical engineering applications of magnetorheological (MR) fluids.

ЁЯФ╣ Key Properties and Composition of MR Fluids

Magnetorheological (MR) fluids are advanced smart materials consisting of magnetically active micro-sized iron particles suspended in a non-magnetic carrier liquid alongside specialized additives designed to mitigate particle sedimentation and agglomeration. When exposed to an external magnetic field, the fluid rapidly alters its rheological characteristics, experiencing a dramatic surge in apparent viscosity to transform into a viscoelastic solid within milliseconds.

ЁЯФ╣ Carrier Liquids and Engineering Applications

A wide variety of liquids serve as base mediums, including mineral oil, silicon oil, castor oil, soybean oil, and synthetic lubricants. Among these, silicone oil is preferred for vibration damping due to its superior viscosity index, low friction coefficient, high flash point, and elevated shear strength. Controlled dynamically via electromagnets, MR fluids are heavily utilized in adaptive shock absorbers, automotive clutches, structural dampers, seismic vibration control systems, and biomedical prosthetics.

ЁЯФ╣ UP PCS / STATE PCS HIGH-YIELD VALUE ADDITION

тАв Nodal Ministry: Ministry of Science and Technology тАв Core Advantage: Operates on lower energy input while delivering higher yield stress compared to Electrorheological (ER) fluids тАв Developing Institution: Indian Institute of Technology (IIT) Patna, Bihar тАв UP PCS Focus: Smart materials, nanotechnology applications, and advanced physical sciences in GS Paper 3.
#2SCIENCE & SPACE
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COSPAR Vikram Sarabhai Medal

ЁЯФ╣ Why in News & Recent Development

Eminent astrophysicist Annapurni Subramaniam has been awarded the prestigious COSPAR Vikram Sarabhai Medal for 2026, making her only the fourth Indian scientist, the first Indian female scientist, and the third female recipient globally to earn this international distinction.

ЁЯФ╣ Institutional Framework and Eligibility Criteria

Established in 1990 to honor Dr. Vikram Sarabhai, widely regarded as the Father of the Indian Space Programme, the award is conferred jointly by the international Committee on Space Research (COSPAR) and the Indian Space Research Organisation (ISRO). The medal recognizes scientists from developing nations who have made outstanding contributions to space research, specifically evaluating achievements accomplished within a 5-year period ending one year prior to the biennial COSPAR Scientific Assembly.

ЁЯФ╣ About COSPAR and Previous Indian Recipients

Founded in 1958, COSPAR is an interdisciplinary scientific body affiliated with the International Science Council (ISC) and maintains formal links with the United Nations Committee on the Peaceful Uses of Outer Space (UN-COPUOS). Previous Indian honorees of the Sarabhai Medal include space scientists U.R. Rao (1996), Gurbax Singh Lakhina (2014), and Anil Bharadwaj (2024).

ЁЯФ╣ UP PCS / STATE PCS HIGH-YIELD VALUE ADDITION

тАв Awarding Authorities: COSPAR and ISRO (Conferred Jointly) тАв Inception Year: 1990 (Medal); 1958 (COSPAR establishment) тАв Assembly Frequency: Biennial (Held every two years) тАв Nodal Department: Department of Space (Government of India) тАв UP PCS Focus: Science & Technology awards, prominent personalities, and international scientific organizations under GS Paper 1 and GS Paper 3.
#3ENVIRONMENT & ECOLOGY
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Glaw Lake (101st Ramsar Site of India)

ЁЯФ╣ Why in News & Recent Development

Glaw Lake, situated in the Lohit district of Arunachal Pradesh, has been formally declared as India's 101st Ramsar Site under the Ramsar Convention on Wetlands, becoming the very first wetland in Arunachal Pradesh to receive international recognition.

ЁЯФ╣ Geographical Profile and Catchment Ecosystem

Nestled at an elevation of 1,168 meters in the Eastern Himalayas, Glaw Lake is a pristine high-altitude freshwater wetland completely surrounded by the dense forests of the Kamlang Tiger Reserve and Wildlife Sanctuary. The lake ecosystem is sustained by perennial glacial mountain streams and harbors high botanical wealth, recording over 150 tree species and 49 orchid species in its immediate catchment area.

ЁЯФ╣ Biodiversity Conservation and Ramsar Mandate

The wetland provides critical habitat for endangered wildlife species, including the critically endangered White-Bellied Heron and the elusive Clouded Leopard. The Ramsar Convention, adopted in 1971 in Iran, operates on three primary pillars: designating wetlands of international importance, promoting the 'wise use' of all national wetlands, and fostering international cooperation on shared aquatic ecosystems.

ЁЯФ╣ UP PCS / STATE PCS HIGH-YIELD VALUE ADDITION

тАв State & District: Arunachal Pradesh, Lohit District тАв Protected Area Overlap: Kamlang Tiger Reserve & Wildlife Sanctuary тАв River System: Lohit River Basin (Major right-bank tributary of Brahmaputra) тАв IUCN Red List Species: White-Bellied Heron (Critically Endangered), Clouded Leopard (Vulnerable) тАв National Tally: 101st Ramsar Site in India; 1st designated Ramsar Site in Arunachal Pradesh тАв UP PCS Focus: Environmental sanctuaries, wetland ecology, and Ramsar designations are core targets for GS Paper 3.
#4GEOGRAPHY & RIVERS
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Madura Island

ЁЯФ╣ Why in News & Recent Development

Madura Island drew global focus after a major maritime disaster occurred off its coast, where a passenger ferry carrying 271 individuals caught fire, necessitating extensive search and rescue operations in the regional strait.

ЁЯФ╣ Geographical Location and Terrain Features

Madura Island is an Indonesian island positioned off the northeastern coast of Java, separated from Java proper by the narrow, strategically significant Madura Strait. Encompassing an area of roughly 5,290 square kilometers, the island features a low-lying, predominantly flat topography without major volcanic summits or significant elevation variances. Principal urban centers include Bangkalan, Sampang, Pamekasan, and Sumenep.

ЁЯФ╣ Demographics and Economic Activity

Inhabited by 3.6 to 4 million ethnic MadureseтАФthe third-largest ethnic group in IndonesiaтАФthe land is popularly termed "The Salt Island" owing to its extensive salt panning facilities, operated largely as a state monopoly. Key economic sectors comprise livestock husbandry, teak forest timber production, and extraction of coconut oil, copra, and kapok. Culturally, Madura is world-famous for its post-harvest traditional bull racing festival (Karapan Sapi).

ЁЯФ╣ UP PCS / STATE PCS HIGH-YIELD VALUE ADDITION

тАв Sovereign State: Indonesia (East Java Province) тАв Connecting Waterway: Madura Strait (separating Java and Madura) тАв Demographic Group: Madurese ethnic population тАв Economic Nickname: "The Salt Island" тАв UP PCS Focus: World political and physical mapping, islands, straits, and global geographic events under GS Paper 1.
#5INDIAN POLITY & GOVERNANCE
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TRAI MyCall Application

ЁЯФ╣ Why in News & Recent Development

The Telecom Regulatory Authority of India (TRAI) has officially rolled out a thoroughly revamped version of its citizen-centric mobile application, TRAI MyCall, enabling mobile subscribers to evaluate and submit real-time feedback regarding their voice calling quality.

ЁЯФ╣ Key Capabilities and Transparency Features

The updated platform enables users to provide instant 1-to-5 star ratings after calls and log specific operational defects, such as call drops, audio delays, ambient noise, cross-connections, or delayed setups. Submitted data is shared in an anonymized format with both TRAI and Telecom Service Providers (TSPs), featuring interactive spatial mapping of feedback, signal strength coverage testing, and integrated regional language translation powered by Bhashini.

ЁЯФ╣ Statutory Profile of TRAI

TRAI is an independent regulatory body established under the Telecom Regulatory Authority of India Act, 1997. It is tasked with fixing tariffs, enforcing Quality of Service (QoS) metrics, and protecting consumer rights. Its original adjudicatory powers were separated following a statutory amendment, establishing the dedicated Telecom Disputes Settlement and Appellate Tribunal (TDSAT) to handle disputes between licensors, service providers, and consumers.

ЁЯФ╣ UP PCS / STATE PCS HIGH-YIELD VALUE ADDITION

тАв Statutory Foundation: Telecom Regulatory Authority of India (TRAI) Act, 1997 тАв Nodal Ministry: Ministry of Communications тАв Body Composition: Chairperson, up to 2 full-time members, and up to 2 part-time members (Tenure: 3 years or 65 years of age) тАв Appellate Authority: TDSAT (Telecom Disputes Settlement and Appellate Tribunal) тАв UP PCS Focus: Statutory regulatory authorities, citizen charters, and e-governance tools in GS Paper 2.
#6DEFENCE & MISSILE TECH
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S8000 Banderol Cruise Missile

ЁЯФ╣ Why in News & Recent Development

Russia has operationalized its newly designed low-cost S8000 Banderol cruise missile during combat operations across Ukraine's coastal regions along the Black Sea.

ЁЯФ╣ Structural Specifications and Propulsion Systems

The S8000 Banderol (translated as 'small parcel') measures approximately 5 meters in length, featuring a wingspan of 2.2 meters and a cylindrical body diameter of 30 cm. Powered by an affordable, commercially available Chinese turbojet engine, the missile reaches operational strike ranges up to 500 km, maintaining a cruising speed between 520тАУ560 km/h and a top velocity of 650 km/h.

ЁЯФ╣ Guiding Systems and Launch Vehicles

Designed explicitly for low-cost mass production using commercial off-the-shelf electronics, the missile carries a 50-kilogram high-explosive fragmentation warhead guided by combined inertial and satellite navigation systems. While its primary aerial delivery platforms are the Orion Unmanned Aerial Vehicle (UAV) and Mi-28 Havoc attack helicopter, ground-launched canister variants have also been developed.

ЁЯФ╣ UP PCS / STATE PCS HIGH-YIELD VALUE ADDITION

тАв Country of Origin: Russian Federation тАв Missile Classification: Air-Launched Cruise Missile (ALCM) / Surface-to-Surface Missile тАв Carrier Platforms: Orion UAV, Mi-28 Havoc Helicopter, Mobile Ground Launchers тАв Maximum Range: 500 km тАв UP PCS Focus: Global defence tech, missile systems, and uncrewed combat platforms under GS Paper 3.
#7INDIAN ECONOMY
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Modified Interest Subvention Scheme (KCC-MISS)

ЁЯФ╣ Why in News & Recent Development

An independent impact assessment conducted by the Institute for Social and Economic Change (ISEC) established that every тВ╣1 allocated under the Kisan Credit CardтАУModified Interest Subvention Scheme (KCC-MISS) generates тВ╣2.30 in net value addition within India's agricultural and allied economic sectors.

ЁЯФ╣ Scheme Architecture and Incentive Structure

Introduced in 2006тАУ07 as a Central Sector Scheme, KCC-MISS facilitates affordable short-term crop loans up to тВ╣3 lakh delivered through Kisan Credit Cards at an initial interest rate of 7%, supported by a direct 1.5% interest subvention to financial institutions. Farmers who demonstrate prompt loan repayment are awarded an extra 3% Prompt Repayment Incentive (PRI), effectively lowering their net borrowing cost to 4% per annum. For standalone animal husbandry and fisheries activities, subvention benefits extend up to credit limits of тВ╣2 lakh.

ЁЯФ╣ Implementation Mechanism and Banking Channels

The scheme is managed and overseen jointly by the Reserve Bank of India (RBI) and the National Bank for Agriculture and Rural Development (NABARD). Operational lending is dispersed through Public Sector Banks, Regional Rural Banks (RRBs), Cooperative Banks, and private commercial financial institutions in rural areas.

ЁЯФ╣ UP PCS / STATE PCS HIGH-YIELD VALUE ADDITION

тАв Scheme Type: Central Sector Scheme (100% Union funded; launched 2006тАУ07) тАв Nodal Ministry: Ministry of Agriculture & Farmers Welfare тАв Implementation Partners: RBI and NABARD тАв Subvention Breakdown: 1.5% Institutional Subvention + 3% Prompt Repayment Incentive (PRI) тАв Effective Interest Cost: 4% per annum for prompt repayers тАв UP PCS Focus: Agricultural credit facilities, financial inclusion mechanisms, and rural banking in GS Paper 3.
#8INDIAN ECONOMY
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Private Capital Expenditure (Capex) Revival in India

ЁЯФ╣ Why in News & Recent Development

Data released by the Reserve Bank of India (RBI) revealed that industrial credit growth accelerated to 19.2% year-on-year in June 2026 (up from 6.3% a year prior), confirming a strong structural recovery in India's private sector capital expenditure cycle.

ЁЯФ╣ Core Growth Drivers and Balance Sheet Strengths

The capex surge is driven by manufacturing capacity utilization rising past the critical threshold to 75.6%, obligating corporate expansion. Combined capital expenditure across listed firms, the Union, and State governments is estimated at тВ╣32 lakh crore in FY26. This recovery is supported by the resolution of the twin balance-sheet problem, with gross non-performing assets (GNPA) falling to a multi-decadal low of 2.1%, alongside government crowding-in via PM Gati Shakti and the Production-Linked Incentive (PLI) Scheme across 14 strategic sectors.

ЁЯФ╣ Capex Fundamentals vs. Operational Expenditure

Unlike operational revenue expenditure, Capital Expenditure (Capex) creates long-term physical assets (factories, machinery, power grids) that enhance the overall productive capacity of the economy. This expansion directly boosts Gross Fixed Capital Formation (GFCF). To sustain private capex momentum, policymakers must navigate geopolitical trade barriers, elevated borrowing costs, imported inflation, and administrative delays in land acquisition.

ЁЯФ╣ UP PCS / STATE PCS HIGH-YIELD VALUE ADDITION

тАв Union Budget Capex Target: тВ╣11.21 lakh crore (3.1% of GDP) for FY2025тАУ26 тАв Key Industrial Metrics: Manufacturing Capacity Utilization (75.6%), Banking GNPA Ratio (2.1%), Industrial Credit Growth (19.2%) тАв Catalytic Frameworks: PLI Scheme, National Infrastructure Pipeline (NIP), PM Gati Shakti Master Plan тАв UP PCS Focus: Capital budgeting, public investment multipliers, and industrial infrastructure in GS Paper 3.
#9INDIAN ECONOMY
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Valuation Dynamics of the Indian Rupee

ЁЯФ╣ Why in News & Recent Development

The Governor of the Reserve Bank of India (RBI) stated that the Indian Rupee currently stands "undervalued" in both nominal terms and on a Real Effective Exchange Rate (REER) basis, despite experiencing a ~5.8% depreciation against the US Dollar in 2026.

ЁЯФ╣ Understanding NEER and REER Metrics

The Nominal Effective Exchange Rate (NEER) measures the unadjusted weighted average value of a country's currency relative to an index of foreign trade-partner currencies. The Real Effective Exchange Rate (REER) adjusts NEER to account for relative inflation differentials between the home country and its trade partners. An REER index above 100 signifies currency overvaluation (reducing export price competitiveness), whereas a value below 100 indicates undervaluation (enhancing export price competitiveness).

ЁЯФ╣ Macroeconomic Impact and Policy Perspective

The central bank's assessment indicates that recent rupee downward pressures stem from global market headwinds, high interest rates in developed economies, and volatile foreign portfolio investor (FPI) capital outflows rather than fundamental weakness in India's domestic economic macro-indicators. An undervalued REER boosts international price competitiveness for Indian exporters but risks importing cost inflation on crucial foreign commodities like crude oil.

ЁЯФ╣ UP PCS / STATE PCS HIGH-YIELD VALUE ADDITION

тАв Monetary Authority: Reserve Bank of India (RBI) тАв Core Economic Metrics: NEER (Nominal Effective Exchange Rate), REER (Real Effective Exchange Rate) тАв Trade Impact Matrix: REER > 100 = Overvalued (Exports costlier); REER < 100 = Undervalued (Exports cheaper) тАв UP PCS Focus: Exchange rate determination, foreign trade competitiveness, and balance of payments dynamics under GS Paper 3.