Current Affairs – May 27, 2026

{GS1 – A&C} Barabar Caves *

Context (TH): Despite serving as the foundational blueprint for India’s rock-cut architecture, the Barabar caves remain largely unknown to the general public.
Barabar Caves in Bihar are India’s oldest surviving rock-cut structures, carved from granite during the Mauryan Empire in the 3^rd century BCE.
Composition: The site comprises four Barabar caves (Lomas Rishi, Sudama, Viswamitra, Karna Chopar) and three Nagarjuni caves (Vahiyaka, Gopika, Vadathika), collectively known as Satghar (Seven Houses).
Royal Patrons: Emperor Ashoka and his grandson Dasharatha built them for Ajivika ascetics, but Buddhist, Jain, and Hindu worshippers later used them.
Architecture: The granite walls have a mirror-smooth finish that remains reflective even after millennia. Polished surfaces and vaulted ceilings create a resonant echo effect, amplifying chants for resident ascetics.
- The entrance features the earliest stone rendering of an ogee-shaped arch, which imitates wooden, thatched huts.
Several chambers contain dedicatory Brahmi inscriptions that refer to Emperor Ashoka as “King Piyadasi“.

Read More> Mauryan Art and Architecture

{GS1 – Geo} Heat Dome

Context (IE): A heat dome is driving a record-breaking early-season heat wave across Western Europe.

A heat wave is a prolonged period of abnormally high surface temperatures over a region that exceeds the regional seasonal averages.

A heat dome is a weather phenomenon where a large, stagnant high-pressure area acts like a “lid” over a region, trapping hot air beneath it.
It forms when a jet stream (fast-moving air stream in the troposphere) meanders and slows, causing high-pressure systems to stall. This pushes warm air down, compressing it and raising its temperature.
Sinking air prevents cloud formation, increasing solar radiation, which dries the soil, reduces evaporative cooling, and further raises air temperature.
Climate Link: Human-induced climate change warms the oceans, altering jet streams, thereby amplifying heat dome intensity, frequency, and duration.
Key Impacts: Depletion of soil moisture, triggering agricultural drought; increased wildfires, strained power grids, and rising heat-related health risks.

{GS2 – Governance} National Sports Board and National Sports Tribunal

Context (DDN): Union Government notified the National Sports Governance (National Sports Board) Rules, 2026 under the National Sports Governance Act, 2025.
The rules establish the National Sports Board as India’s apex sports regulatory authority, empowered to grant, suspend, or cancel recognition of National Sports Bodies and Regional Sports Federations.
The NSB consists of a Chairperson and two members appointed by the Central Government on the recommendation of a Search-cum-Selection Committee, with a tenure of up to 3 years or until attaining 65 years of age, whichever is earlier. They are eligible for one additional term.

National Sports Tribunal (NST)

National Sports Tribunal Rules, 2026 were also notified, establishing the National Sports Tribunal (NST) as a quasi-judicial body for Indian sports.
NST handles conflicts within or between National Sports Bodies, preventing sportspersons from losing competitive years to slow legal processes.
Composition: It comprises a chairperson and two other members, appointed by the Central Government following the recommendation of a Search-cum-Selection Committee. The Chairperson must be a sitting or former Supreme Court judge or a sitting or former Chief Justice of a High Court.
Tenure: Chairperson holds office for 5 years or until age 70, whichever is earlier, while Members serve for 5 years or until age 67, whichever is earlier. Both are eligible for one additional term.
Jurisdiction: NST has civil court powers but cannot hear disputes involving major sporting events (Olympics, Paralympic Games, Commonwealth Games, Asian Games, etc.), doping, or matters under the exclusive jurisdiction of sports bodies.
Appeals against NST orders lie with the Supreme Court if filed within 30 days.

{GS2 – IR} India’s Strategic Defence Rebalancing **

Context (IE): India is expanding defence partnerships with the EU and European nations to diversify from its historical reliance on Russia.

Rationale Driving Delhi’s Rebalancing

Single-Source Risk: About 60-70% of India’s legacy military hardware is Russian-origin, risking supply chain disruption from the Ukraine war.
Russia-China Proximity: Moscow’s growing reliance on Beijing weakens India’s trust in Russian neutrality during a border crisis.
Technology Access: European partnerships support India’s domestic modernisation in semiconductors, cyber defence, space, and drone warfare.
Western Pressure: Both US and EU urge India to reduce military and financial dependence on Moscow.

India-EU Security Cooperation Pillars

Security Partnership: India-EU Security and Defence Partnership (SDP) institutionalizes dialogue on maritime security, hybrid threats, cyber, space, counter-terrorism, and defence industry.
India-Italy Roadmap: The Defence Industrial Roadmap promotes technological collaboration, co-production, and co-development in defence sectors.
Economic Anchor: The recently concluded India-EU FTA will strengthen long-term supply-chain ties..

Key Friction Points

Technology Transfer: Western partners hesitate to commit to unconditional IP transfer due to leakage risks from Russian-linked systems.
Strategic Autonomy: The EU criticises India’s imports of Russian crude and its participation in multilateral military exercises in Eurasia.
Legacy Inertia: India will need decades to shift its military infrastructure away from Russian components, rendering medium-term decoupling impractical.

Way Forward for India

National Strategy: Formulate a written National Security Strategy (NSS) to align diplomatic rebalancing with defence procurement.
Defence Reform: Operationalise Integrated Theatre Commands to improve resource pooling, tri-service integration, and joint warfighting.
Co-development: Shift from buyer-seller ties to joint ventures via India-France and India-Italy roadmaps.

{GS2 – Polity} Complete Justice Under Article 142 **

Context (TH): The Supreme Court exercised its power of complete justice to make the Right to Safe Travel a Fundamental Right under Article 21 and issued binding nationwide safety directives.

About Complete Justice

Complete justice serves as an equitable, constitutional safety valve, enabling the Supreme Court to address remedial gaps in existing law. The power is plenary and residuary, operating where statutory law is silent, inadequate, or causes injustice.
Article 142(1) empowers the SC to pass orders to deliver complete justice in pending matters.
- High Courts lack equivalent powers; their extraordinary jurisdiction under Article 226 isn’t equal to the Supreme Court’s power to grant “complete justice” (Anil Kumar Jain v. Maya Jain).

Judicial Evolution of Article 142

Prem Chand Garg case (1962): Complete justice must align with Fundamental Rights and statutory laws.
Union Carbide Corporation case (1991): Statutory prohibitions cannot limit powers under Article 142.
Supreme Court Bar Association v. UoI (1998): The Article is meant to supplement, not supplant, existing statutory provisions.
Ayodhya Verdict (2019): Used Article 142 to grant alternative land to the Sunni Central Waqf Board.
Tamil Nadu v. Governor (2025): Utilised it to create a ‘deemed assent’ mechanism for bills withheld by the Governor to prevent constitutional paralysis.

Significance of Article 142

Serves as an interim remedy when legislative delays leave rights-based issues legally unprotected, as seen in the Vishaka Guidelines (1997) before the POSH Act, 2013.
Reinforces the Supreme Court’s role as constitutional guardian by enabling resolution of deadlocks between government branches.
Facilitates judicial responses to evolving socio-economic challenges like public health, environmental concerns, and vulnerable populations.

Key Concerns

Separation of Powers: Frequent invocation of Article 142 can undermine checks and balances by eroding powers reserved for the elected executive and legislature.
Undefined Scope: The open-ended phrase “complete justice” risks judicial overreach due to its subjective interpretation, which may reduce legal predictability.
Limited Accountability: Article 142 orders bypass immediate democratic scrutiny and the standard legal review available to laws enacted by elected representatives.

{GS3 – Envi} Wetlands Rules, 2017

Context (TH): Supreme Court has agreed to examine whether the Wetlands (Conservation and Management) Rules, 2017, are reducing legal protection for wetlands in India.

The petition has argued that the rules violate the Ramsar Convention by excluding many human-made and artificial wetlands from protection.

Wetlands (Conservation and Management) Rules, 2017

The Rules were notified under Environment Protection Act, 1986 & replaced the earlier Wetlands Rules, 2010.
Objective: To conserve, manage & maintain ecological character of wetlands while ensuring their “wise use”.
Definition of Wetlands: Wetlands include marshes, fens, peatlands, natural or artificial water bodies, fresh, brackish or saline waters and marine waters up to 6 metres depth at low tide.
- Rules have excluded several categories of human-made water bodies, such as those constructed for irrigation, drinking water, aquaculture, salt production, recreation, and allied purposes.
The Wetlands Rules, 2017, removed the Central Wetland Regulatory Authority and shifted wetland regulation mainly to State authorities, while also weakening restrictions on reclamation, construction and encroachments in wetlands.

{GS3 – IE} Rethinking the PLI Scheme **

Context (TH): The ongoing West Asian crisis and resulting supply-chain disruptions have prompted the government to recalibrate the Production-Linked Incentive (PLI) scheme.

PLI scheme offers direct financial incentives to companies based on their incremental sales of domestically manufactured goods relative to a fixed base year.

Key Achievements of PLI Scheme

Economic Scale: PLI-backed investments exceeded ₹2.16 lakh crore, with cumulative production reaching ₹20.41 lakh crore across 14 sectors.
Global Trade: Cumulative PLI-driven exports have exceeded ₹8.3 lakh crore, establishing India as a net exporter of smartphones and a major global exporter of telecom equipment.
Chain Impact: FDI in large-scale electronics surged by 254% under PLI, with 176 MSMEs integrated into global networks and over 14.39 lakh jobs generated.
Import Substitution: 60% import substitution was achieved in telecom hardware, and 191 critical bulk drugs were manufactured domestically for the first time.

Challenges with PLI Scheme

Disbursement Friction: A ~15% disbursement rate against the ₹1.91 lakh crore total scheme outlay constrains capital flows and undermines long-term confidence among manufacturers.
Supply-Chain Dependency: 67% import dependence on deep-tier electronic components from China indicates that assembly volumes have not yet translated into upstream self-reliance.
MSME Exclusion: Mandating upfront capital deployment and verified incremental sales before releasing any incentives disadvantages first-time manufacturers and financially constrained MSMEs.
Base-Year Rigidity: Tying performance benchmarks to a fixed FY2019-20 base year strips later-commissioned greenfield projects of eligibility for multiple years of incentives.

Way Forward

Value Addition: Restructure payout slabs to link financial rewards directly to domestic value-addition thresholds rather than to end-product assembly volumes.
Lower Thresholds: Relax the minimum capital investment threshold to enable highly skilled domestic MSMEs to qualify for primary subsidy benefits.
Digital Clearance: Transition to digital single-window clearance platforms to eliminate lengthy bureaucratic verification delays and expedite cash disbursements.
Subsidy Sunset: Establish clear, pre-announced schedules for winding down subsidies to compel beneficiary firms to build independent global competitiveness.

Read More> Initiatives for Export Promotion

{Prelims – Geo} Nautapa

Context (ET): “Nautapa” has begun across India, bringing peak summer heatwave conditions before the arrival of the southwest monsoon.

Nautapa is a traditional nine-day peak summer period in northern India that usually begins when the Sun enters the Rohini Nakshatra. It plays an important role in India’s monsoon cycle, agriculture and ecosystems.
The period is marked by severe heatwaves, dry hot winds (loo) and solar heating.

{Prelims – IR} India, US Sign Critical Minerals Framework

Context (DDN): India and the US signed a framework on “Securing of Supply in the Mining and Processing of Critical Minerals and Rare Earths”.

The Framework aims to deepen India-U.S. cooperation across the critical minerals and rare earths supply chain, including mining, processing, recycling and related investments.
It seeks to strengthen resilient and diversified supply chains, while promoting collaboration in financing and effective management of critical minerals and rare earths scrap.

Read More> Rare Earth Elements

{Prelims – S&T} Indian Association for the Cultivation of Science (IACS)

Context (PIB): Indian Association for Cultivation of Science, Kolkata celebrated its 150th anniversary in 2026.

Founded in 1876 by Mahendra Lal Sircar, IACS is the oldest institute in India devoted to the pursuit of fundamental research in basic sciences.
IACS is an autonomous research institute funded mainly by the Department of Science & Technology (DST) and the Government of West Bengal.
Associated Scientists: Jagadish Chandra Bose, Meghnad Saha, Satyendra Nath Bose and C. V. Raman.
- C. V. Raman discovered the Raman Effect at IACS in 1928, leading to India’s first Nobel Prize in Science in 1930.

Raman Effect refers to the change in wavelength or energy of light when it scatters after interacting with molecules of a substance. The discovery helped scientists’ study molecular structure and led to the development of Raman spectroscopy used in chemistry, medicine and material science.

{Prelims – S&T} Wi-Fi 7 *

Context (DDN): Global networking brand TP-Link announced the start of Wi-Fi 7 product manufacturing in India, supporting next-generation telecom infrastructure.

Institute of Electrical and Electronics Engineers (IEEE) designates Wi-Fi 7 as 802.11be.
It succeeds Wi-Fi 6 and 6E and is designed to increase data rates, reduce congestion, and lower latency for real-time applications. It offers theoretical speeds of up to 46 Gbps, nearly five times higher than Wi-Fi 6.
Multi-Link Operation (MLO): Wi-Fi 7 can transmit across multiple frequency bands simultaneously, enabling seamless dynamic switching to avoid interference.
Applications: Supports cloud computing, AI-driven applications, IoT ecosystems, and remote robotic surgery.

Context (PIB): Indian scientists developed Cleavable Light-Erased Antibody Reporter (CLEAR), a technology for improved protein mapping.

Protein mapping identifies the types, amounts, and spatial locations of proteins in cells or tissues to trace disease-linked cellular changes.

CLEAR is a protein-imaging technology that enables scientists to visualise multiple proteins in the same sample using a single fluorescent marker.
It uses light-cleavable fluorescent tags, where exposure to 365-nm LED light erases previous signals after imaging, allowing repeated re-imaging & overcoming the limitations of multiple dyes & restricted colour palettes.
Key Applications: Early diagnosis of cancer, neurological disorders, immune responses, and development of targeted, personalised treatments.

Light-cleavable fluorescent tags are markers attached to proteins that glow under a microscope and can be removed by light at a specific wavelength.