Current Affairs – April 23, 2026

{GS1 – Geo} Dimensions of Uranium Enrichment

Context (AJ|FP): The U.S. has demanded Iran halt all uranium enrichment as a central condition of the ongoing 2026 war negotiations.

About Uranium

Uranium is a naturally occurring, silvery-white, metallic radioactive element with a very high density.
Isotopes: It occurs naturally in three primary isotopes:
1. U-238 is the most abundant isotope, comprising over 99.2% of natural uranium.
2. U-235 constitutes 0.7% of natural uranium. It is the sole naturally occurring fissile isotope.
3. U-234 is the rarest isotope, present only in trace amounts of about 0.005% of natural uranium.
Health Risks: Uranium poses chemical and radiological risks. Ingestion damages the kidneys, while inhaled dust or radon (its decay product) increases the risk of lung cancer.
Applications: It fuels nuclear reactors, weapons and produces medical isotopes for cancer treatment and diagnostic imaging.
- Military Uses: Depleted uranium is used in armour-piercing projectiles, tank armour, and aircraft control-surface counterweights.

Distribution of Uranium

Top Producers: Kazakhstan leads in uranium production, followed by Canada and Namibia. The three nations collectively account for 75% of the world’s supply.
Reserve Gap: Australia holds the largest known uranium reserves (roughly 28%) but currently ranks fourth in production.
India: India ranks 13^th in reserves and 9^th in production, contributing less than 1% of global supply.
State Share: Andhra Pradesh accounts for ~50% of India’s identified uranium resources, followed by Jharkhand and Meghalaya.

Stages of Uranium Enrichment

Extraction: Uranium ore is crushed and refined into a concentrated powder known as yellowcake.
Hydrofluorination: Hydrogen fluoride gas reacts with uranium dioxide (derived from yellowcake) to form emerald-green crystals of uranium tetrafluoride.
Fluorination: The crystals are further processed into uranium hexafluoride, which is gasified when heated for isotope separation.
Enrichment: High-speed centrifuges spin the gas to increase the concentration of fissile U-235.
Cascading: The gas passes through thousands of connected centrifuges, gradually reaching the concentration required for nuclear fuel.
Deconversion: The gas is chemically converted back into the black uranium dioxide powder.
Sintering: The powder is compressed and baked at extreme temperatures into dense, heat-resistant ceramic pellets.
Zirconium Cladding: The finished pellets are sealed inside corrosion-resistant zirconium alloy tubes, forming fuel rods bundled for the reactor.

Different Levels of Uranium Enrichment

Low-Enriched Uranium: Contains 0.7%-20% U-235 and serves as the primary fuel for nuclear energy.
- Reactor Grades: Enrichment of 3%-5% fuels nuclear power plants, while 5%-20% powers advanced reactors and Small Modular Reactors (SMRs).
Highly Enriched Uranium: Contains 20% or more U-235 and is strictly monitored internationally due to its potential for military misuse.
- Weapons Grade: Enrichment to 90% enables the rapid, uncontrolled chain reaction required for nuclear explosives.
Byproducts and Natural States: These forms either exist before the enrichment process begins or as by-products of its completion.
- Natural Uranium: Retains its original 0.7% U-235 and can fuel specialised reactors like CANDU.
- Depleted Uranium: It is a byproduct with less than 0.3% U-235, used in radiation shielding and armour-piercing applications.

About Separative Work Unit (SWU)

SWU is the standard unit used to measure the effort required to separate U-235 from U-238 during Uranium enrichment.
Feed Ratio: It has an inverse relationship with feed material. More feed material requires proportionally less SWU effort.
Non-Linear: Reaching 4% enrichment consumes 75% of total SWU, whereas the final jump from 60% to 90% requires only a small fraction.

{GS2 – MEITY} MeitY Notifies PROG Rules to Operationalise Online Gaming Act, 2025 **

Context (TH): Ministry of Electronics and IT (MeitY) notified the Promotion and Regulation of Online Gaming (PROG) Rules, 2026, effective from 1 May 2026.

Parent Act: The rules operationalise the PROG Act, 2025, which prohibits online money gaming while permitting e-sports and social games.

Key Provisions of the PROG Rules, 2026

Regulator: The Online Gaming Authority of India (OGAI) is established as a “digital-first” attached office under MeitY for classification and enforcement.
Determination Test: A 90-day determination test is introduced to distinguish prohibited money games from permissible social or e-sports categories.
Money-Gaming Ban: The rules prohibit all games involving monetary stakes or wagering, but permit registered e-sports with pre-declared prize pools.
Certificate Validity: Permitted games and e-sports titles receive a Digital Certificate of Registration, valid for up to 10 years.
- E-sports Mandate: Registration is compulsory for all e-sports titles and their governing entities to obtain official government recognition.
- Social Games: Casual or social games are deemed approved and need not register unless flagged for specific user risks.
User Protections: Platforms are legally required to integrate age verification, parental controls, and fair-play mechanisms.
Financial Block: Banks and payment gateways must block all financial transactions linked to prohibited or blacklisted gaming platforms.
Ad Ban: The rules impose a comprehensive ban on promotion, sponsorship, or advertising of online money gaming.
Grievance Redressal: A statutory two-tier system allows users to appeal platform decisions to OGAI, with a final appeal to the Secretary, MeitY.
Penalties: Violations attract civil fines up to ₹1 crore and criminal imprisonment for up to 3 years.

{GS2 – Governance} Revamped Technology Development and Investment Promotion (TDIP) Scheme *

Context (PIB): Ministry of Communications revamped the Technology Development and Investment Promotion (TDIP) Scheme to strengthen India’s global telecom footprint.

TDIP is a central sector scheme under the Department of Telecommunications (DoT).
Objective: To enhance India’s role in global standardisation and to accelerate the development of indigenous telecom technology.
Focus Areas: Revised guidelines prioritise 6G ecosystem development to reduce reliance on foreign proprietary tech.
Eligibility: The framework now includes startups, MSMEs, academia, and industry players, moving beyond earlier institutional dominance.
Deployment Push: It funds pilot projects, proof-of-concept (PoC initiatives, and technology demos to accelerate research commercialisation.
Implementation: Formalised through Telecom Standards Development Society, India (TSDSI), Telecommunications Consultants India Limited (TCIL), and Telecom Centres of Excellence (TCoE).

{GS2 – Governance} CERC Proposes Market Coupling for ‘One Grid, One Price’

Context (FE): The Central Electricity Regulatory Commission (CERC) issued a draft regulation to formally introduce market coupling in India.

Objective: It aims to unify the power market by shifting from a decentralised system to a centralised price benchmark.

Market Coupling centralises price discovery by pooling buy and sell bids from all power exchanges into a single national pool.
CERC is a statutory body under the Electricity Act, 2003, responsible for regulating electricity tariffs, interstate transmission, and promoting competition in the power sector.

Key Provisions of the Draft Regulations

Institutional Framework: Grid Controller of India Limited (Grid India) is designated as the sole Market Coupling Operator (MCO) responsible for centralising price discovery.
Initial Scope: The regulations will apply to the Day-Ahead Market (DAM) and Real-Time Market (RTM) segments in the first phase of implementation.
Price Calculation: MCO will calculate prices by combining buyer and seller bids to maximise total economic surplus.
Standardised Bidding: Power exchanges must collect bids in a uniform format and transmit anonymised data to the MCO for centralised processing.
Uniform Pricing: The operator will use a common algorithm to discover a single Uniform Clearing Price (UCP) across all participating exchanges.

Current Operational Framework of the Indian Power Market

Separate Algorithms: Each power exchange uses its own private algorithm to determine prices only from its pool of buyers and sellers.
Exchange Choice: Market participants choose freely among three power exchanges (IEX, PXIL, and HPX) to place their bids.
Capacity Allocation: National Load Despatch Centre allocates transmission capacity to each exchange individually, based on each exchange’s own auction results.
Proprietary Data: Each exchange keeps bidding data proprietary and does not share it with competitors or any central operator before price discovery.
Price Divergence: Separate auctions frequently produce different final prices for the same electricity product across trading platforms.

{GS2 – Governance} Supreme Court Directions on Disabled-Friendly Prisons **

Context (TH): The Supreme Court has directed a high-powered committee to prepare a plan for disabled-friendly prisons across India.

The committee, chaired by Justice S. Ravindra Bhat, will expand its mandate to include accessibility, assistive support, and security considerations.

Prisoners with disabilities retain rights under Articles 14 & 21, ensuring equality and dignified living even during incarceration.
Violations of their rights attract penalties under the Rights of Persons with Disabilities Act, 2016.

Issues of Disabled Prisoners in India

Data Gap: India lacks official data on prisoners with disabilities, unlike global estimates where ~16% of the population (WHO) and up to 38% prisoners (US data) have disabilities.
Human Rights Violations: Cases like G. N. Saibaba and Stan Swamy show denial of basic aids, healthcare, and dignity in prisons.
Institutional Gaps: Major reforms (Model Prison Manual, Mulla Committee, 2023 Prison Act) ignored disability inclusion, despite focusing on women and transgender prisoners.
Legal-Implementation Gap: Despite protections under the Rights of Persons with Disabilities Act, prison systems lack effective enforcement and inclusion.
Poor Infrastructure & Care: Absence of ramps, assistive devices, specialised medical care, and mental health support worsens conditions for disabled inmates.

Reform Measures for Disabled Friendly Prisons

Accessible Infrastructure: Ensure barrier-free prisons with ramps, accessible toilets, and facilities tailored to prisoners with disabilities (e.g. Nelson Mandela Rules by UN).
Assistive Devices: Provide need-based aids like wheelchairs, hearing devices, and support equipment with standardised procurement and maintenance.
Specialised Healthcare: Guarantee continuous medical care, including disability-specific treatment and monitoring of chronic conditions (e.g. monthly camp for PwD in Gwalior Jail).
Social Support: Enhance visitation rights and communication access to maintain family contact and emotional well-being.
Legal Support: Strengthen legal aid (by NALSA) and enforce accountability under the Rights of Persons with Disabilities Act to protect prisoners’ rights.
International Best Practices: Countries like the UK, Netherlands, and Australia provide disability-specific prison guidelines and use peer support systems and suicide prevention protocols.

{GS2 – IR} ILO Releases Report on Psychosocial Risks of Toxic Workplace Culture **

Context (TH): International Labour Organisation (ILO) recently released a report highlighting a health crisis from toxic workplace culture and work-related stress.

Key Findings of the Report

Risk Factors: The report listed five main psychosocial risks — long working hours, job strain, effort-reward imbalance, job insecurity, and workplace harassment.
Mortality: Over 8.4 lakh deaths annually are linked to these risks, mainly due to cardiovascular diseases, mental disorders, and suicide.
Economic Impact: These risk factors cause an estimated annual loss of 1.37% of global GDP.
Health Burden: They result in loss of nearly 45 million disability-adjusted life years (DALYs) each year.
Exposure: 35% of workers work over 48 hours weekly; 23% face workplace violence or harassment, with psychological violence the most prevalent (18%).

Recommended Pathways

Structural Redesign: Ensure fair workloads, greater job predictability, and stronger organisational justice.
Collectivisation: Strengthen trade unions, collective bargaining, and social dialogue to turn legal safeguards into enforceable protections.
Policy Integration: Address psychosocial risks with parity to physical and chemical hazards within national Occupational Safety and Health (OSH) policies.
Monitoring: Develop systematic policy evaluation and participatory monitoring to continually assess and improve psychosocial conditions.

{GS3 – IE} India’s Growth Story Beyond GDP Rankings

Context (IE): IMF estimates rank India 6^th globally in GDP, despite strong growth, due to statistical and external factors.

Limitations of Global GDP Rankings

Nominal Distortion: GDP rankings (in dollar terms) fluctuate due to exchange rate movements, not actual economic performance.
GDP Revision Effects: Changes in methodology and base year can alter past estimates, reshaping growth narratives without real change.
Data Quality: Delays & inconsistencies in data collection can reduce the reliability of growth estimates.
Comparability Issues: Differences in statistical methods across countries make global GDP rankings less accurate and comparable.

Issue with GDP as a Measure of Economic Development

Ignores Distribution: High GDP does not reflect income inequality (top 1% holds ~22.6% of national income) or who benefits from growth.
No Welfare Insight: India ranks 130 in UNDP Human Development Index despite being in a top 6 GDP economy; ~16% population is multidimensionally poor (NITI Aayog).
Jobless Growth Blindspot: GDP growth may rise even when employment generation is weak.
Structural Issues Hidden: Over 45% workforce in agriculture contributes ~15% GDP; ~90% workforce is in the informal sector (ILO).
Regional Disparities: National GDP ignores intra-country inequalities across states/regions (e.g. 5 southern states contribute ~30% of GDP).
Informal Economy: A large informal sector (~90%) leads to underestimation or mismeasurement of actual economic activity.

{GS3 – IE} Digital Payments E-Mandate Framework, 2026 *

Context (ET): Reserve Bank of India (RBI) issued Digital Payments – E-Mandate Framework, 2026 under the Payment and Settlement Systems Act, 2007.

E-mandates are digital instructions that allow automatic recurring payments from bank accounts, cards, UPI, or prepaid instruments.

The framework consolidates earlier circulars to standardise e-mandate rules for cards, UPI, and Prepaid Payment Instruments (PPIs).
Registration: Every e-mandate requires one-time registration with an Additional Factor of Authentication (AFA) to establish verified customer consent.
Thresholds: Auto-debits up to ₹15,000 can proceed without AFA; for insurance, mutual funds, and credit card bills, this limit is ₹1 lakh. Full AFA is required above these limits, and for registration.
Customer Rights: Every mandate must specify a validity period, and customers may modify, withdraw, or opt out at any time.
Zero-Cost Access: Banks, issuers, and payment system providers cannot levy any charges for using e-mandate payment facilities.

{GS3 – Agri} India’s Foodgrain Stocks Surge Above Buffer Norms

Context (DDN): India’s foodgrain stocks have surged well above its buffer norms, strengthening the country’s cushion against supply shocks and global price swings.

India has ~602 LMT foodgrain stock (Wheat: 222 LMT, Rice: 380 LMT), about 3 times the buffer stock norms, ensuring strong food security.
Stocks are sufficient to meet the needs of the PDS and emergency requirements.

What is Buffer Stock?

Buffer stock refers to government-maintained reserves of food grains (mainly wheat & rice) to ensure food security and price stability.
Origin: Formally introduced during the Fourth Five-Year Plan (1969–74) to manage food shortages.
Stock Norms: Minimum buffer levels are fixed by the Cabinet Committee on Economic Affairs (CCEA) and reviewed quarterly (April, July, October, January).
Procurement Mechanism: Food grains are procured from farmers at MSP by agencies like the Food Corporation of India (FCI).
Purpose: Ensures food security, price stabilisation, & emergency supply during crises like droughts.
Distribution: Released through welfare schemes like the PDS and open market operations.

India’s Agricultural Production

Record Production: India achieved 357.73 MMT of foodgrain and 362.08 MT of horticulture output (2024–25), indicating a shift towards high-value crops.
Export Growth: Agricultural exports increased from $34.5 bn (FY20) to $51.1 bn (FY25), with processed food share rising to 20.4%.
Public Investment: Budget allocation surged from ₹21,933 crore (2013–14) to ₹1.30 lakh crore (2026–27), showing sustained policy focus.
Top Global Producer: India ranks 1^st in pulses, millets, spices, coconut, and 2^nd in rice, wheat, fruits, vegetables, tea, sugarcane, and cotton.

Government Initiatives Supporting Agriculture Production

Farmer Support Schemes: Under PM-KISAN, ₹4.27 lakh crore disbursed, and crop insurance claims crossed ₹1.90 lakh crore, boosting income security.
National Food Security and Nutrition Mission (NFSNM): Enhances production of cereals, pulses, and millets through targeted input support, technology, and region-specific strategies.
Mission for Aatmanirbharta in Pulses: Focuses on achieving self-sufficiency in pulses by boosting domestic output and reducing import dependence.
National Mission on Edible Oils (NMEO): Promotes oilseed and oil palm cultivation to increase edible oil production and reduce imports.
Kisan Credit Card (KCC) Scheme: Offers timely and affordable institutional credit to farmers for cultivation and allied activities.

{Prelims – A&C} Áspero *

Context (HD): Archaeologists discovered a two-level structure at the Áspero site, probably used for astronomical observations.

Áspero is a prominent Late Preceramic site on Peru’s central coast, on the right bank of the Supe River near the Pacific Ocean.
It belonged to the Norte Chico or Caral-Supe civilisation, the oldest known complex society in the Americas, dating to roughly 3000–1800 BCE.
It was contemporary with early Bronze Age civilisations of Mesopotamia, Egypt, and the Indus Valley.
Key Feature: The site lacks pottery but features monumental architecture like large terraced platform mounds called huacas.
- The two best-excavated structures are Huaca de los Ídolos (Mound of the Idols) and Huaca de los Sacrificios (Mound of the Sacrifices).
Economy: It functioned mainly as a marine fishing hub, using specialised cotton nets to catch anchovies.

{Prelims – Envi} Stauranthera aureoglossa

Context (RM): Botanists discovered Stauranthera aureoglossa, a new flowering plant species, in Arunachal Pradesh.
It is a perennial herb of the family Gesneriaceae (African violets).
Appearance: The herb has asymmetrical, spear-shaped leaves & bell-shaped, bluish-purple flowers.
Golden Tongue: There is a raised yellow patch on the inside of the flower’s lower lip.
Habitat: It typically grows on damp rocks or soil near streams in evergreen forests.
Distribution: This plant is currently known only from Arunachal Pradesh.
Key Threats: Road expansion, logging, and habitat loss from landslides.

{Prelims – IR} Druzhba Oil Pipeline

Context (MSN): Ukraine has repaired the Druzhba pipeline and is ready to resume operations.

The pipeline was built during the Soviet period to transport Russian crude oil to European markets.
Druzhba or the ‘Friendship pipeline’ is among the world’s longest and largest crude oil pipeline networks, spanning about 5,500 km.
It starts in Almetyevsk, Russia, and splits at Mozyr (Belarus) into a northern branch heading towards Germany and a southern branch through Ukraine.
Capacity: The pipeline is designed to carry roughly 1.2–1.4 million barrels per day.
Significance: The southern branch is key to the energy security of landlocked Central European states like Hungary and Slovakia.

{Prelims – Defence} INS Nireekshak Participates in IN-SLN DIVEX 2026 *

Context (TH): INS Nireekshak has arrived in Colombo to participate in the 4^th India–Sri Lanka Diving Exercise (IN-SLN DIVEX 2026).

IN-SLN DIVEX 2026 is a bilateral exercise centred on complex underwater operations, diving drills, and enhancing naval interoperability.
During the visit, India delivered two BHISHM cubes to Sri Lanka under its Aarogya Maitri initiative.
Significance: The exercise supports India’s MAHASAGAR vision for mutual security and collective growth in the Indian Ocean Region.

BHISHM (Bharat Health Initiative for Sahyog, Hita and Maitri) cubes are portable, modular medical facilities that can be rapidly deployed as mobile hospitals in emergencies.

About INS Nireekshak

INS Nireekshak is a specialised Diving Support Vessel (DSV) and a Submarine Rescue Vessel.
It was originally built by Mazagon Dock Limited (MDL) in 1985 for ONGC operations.
It is equipped with a Dynamic Positioning System to maintain a precise position during underwater rescue or salvage operations.
Range: The vessel supports saturation diving to depths of up to 300 m for deep underwater tasks.