Current Affairs – June 03, 2026

{GS2 – Governance} Prison Statistics report, 2024

• Context (TH): The Prison Statistics report, 2024 was released by the National Crime Records Bureau.

Key Highlights

• Overcrowding: India’s 1,333 prisons, sanctioned for ~4.53 lakh inmates, currently house over 5.11 lakh, an occupancy rate of 112.7%, a decade-low, yet still alarmingly above capacity.
• Undertrial Crisis: ~73% of all prisoners are undertrials, with 9,028 confined for over 5 years without conviction, a direct violation of the right to speedy trial under Article 21.
• Women Prisoners: About 95% of prisoners are male, while women constitute only 4.14%. India has just 34 women’s prisons, and 21 States/UTs lack exclusive facilities for women inmates.
• Regional Overcrowding: Overcrowding is not uniform. Delhi has reported the highest occupancy rate (194.6%) followed by Meghalaya (163.5%).
• Staff Vacancies: Against a sanctioned jail-staff strength, ~37% posts remain vacant as of December 2024.
• Rising Unnatural Deaths: Unnatural deaths in prisons rose 10.7% in 2024, with 122 suicides, raising serious concerns over mental health and custodial conditions.

Read More> Prison Reforms in India

{GS2 – Governance} Immigration and Foreigners Rules, 2025

• Context (TH): Home Ministry has notified amendments to the Immigration and Foreigners Rules, 2025.

• Framed under the Immigration and Foreigners Act, 2025, which came into force on 1 September 2025 to regulate the entry, stay, registration and exit of foreigners in India.
• The rules prescribe conditions and procedures for registration of foreign nationals with Foreigners Registration Officers.
• Immigration Management: Provides rules relating to visas, travel documents, entry and exit through designated immigration checkpoints and monitoring of foreign nationals.
• Registration: Foreigners intending to stay beyond 180 days must now register before the expiry of the 180-day period, instead of within 14 days after completing 180 days of stay.
• Children with an Indian Parent: The requirement to report the birth of a child within 30 days will not apply where either parent is an Indian citizen.
  • If such a child later acquires foreign citizenship while in India, parents must inform the registration officer within 30 days.

Read More> Immigration and Foreigners Act, 2025

{GS2 – IR} India-Australia Defence Ministers’ Dialogue

• Context (TH): The 2^nd India-Australia Defence Ministers’ Dialogue took place in New Delhi.

Key Highlights

• Maritime Security: Both nations prioritised finalising the Joint Maritime Security Collaboration Roadmap to boost maritime awareness via patrol aircraft and undersea surveillance networks.
• Industrial collaboration: India and Australia agreed to formalise an MoU on Defence Articles and Services to support joint manufacturing, technology transfer, and research.
• Quad Convergence: Both reaffirmed commitment to the Quad Indo-Pacific Maritime Surveillance Collaboration (IPMSC) to uphold a free, open, rules-based IOR.
• Technology Research: The two sides agreed to explore advanced defence sensor technologies.
• Operational Integration: India confirmed its first participation in Australia-led Operation Render Safe 2026 and discussed upgrading AUSTRAHIND to complex amphibious and littoral operations.

Read More > India-Australia Defence Ties

{GS2 – MoJS} MAHA Water Mission *

• Context (DDN): India has launched the Mission for Advancement in High-Impact Areas (MAHA) Water Mission to promote innovation, startups, and technology-driven solutions for India’s water security.

• Launched By: Anusandhan National Research Foundation (ANRF) and the Ministry of Jal Shakti.
• Aims to achieve sustainable, equitable, and climate-resilient water security through R&D-driven technological solutions.
• Funding: Provides funding of up to ₹20 crore per project for technology development, validation, field testing, and deployment.
• Five Priority Themes: Water resource management, drinking water, water quality & ecological health, water-use efficiency & circular economy, and climate resilience & adaptation.
• Consortium-Based Approach: Supports multi-disciplinary and multi-institutional consortia involving academia, research labs, startups, MSMEs, and industry partners.

{GS3 – Envi} Isobutanol Blending in Diesel

• Context (HT): Ministry of Road Transport and Highways (MoRTH) recently announced that a national isobutanol-diesel blending mandate is expected later in 2026.

• Key Cause: India’s 10% ethanol-diesel blending trials failed because ethanol is physically and chemically incompatible with diesel.

About Isobutanol

• Isobutanol (C₄H₁₀O), or isobutyl alcohol, is a flammable, colourless four-carbon higher alcohol, used as a solvent in paints, coatings, and chemical industries.
• It is synthesised through biochemical fermentation of biomass (sugarcane juice, B-heavy molasses) and thermochemical conversion of synthesis gas (syngas) into mixed alcohols.

Advantages over Ethanol

• Stability: Isobutanol mixes uniformly with diesel and remains stable over long durations without additional additives, allowing use in existing heavy-duty engines.
• Engine Durability: It has a higher energy density and lower water absorption rate than ethanol, reducing corrosion risks in engines and pipelines.
• Fire Safety: It has a higher flash point (lowest temperature for ignition) than ethanol and lower volatility.

Key Limitations

• Ignition Delay: Isobutanol lowers the blend’s cetane number, delaying ignition and causing diesel knocking (explosive combustion of accumulated fuel). Additives can fix this, but increase costs.
• Scale Gap: India uses over 90 million tonnes of diesel annually, nearly twice as much as petrol. Current infrastructure cannot produce isobutanol at the national level.
• Supply Conflict: Isobutanol production requires retrofitting existing distilleries, creating competition with the E20 petrol programme and alcohol industries.
• Blending Ceiling: Automotive Research Association of India (ARAI) trials show that existing diesel engines can safely tolerate only 10% blending; higher blends need flex-fuel modifications.

Read More > Ethanol Blending

{GS3 – IE} New WPI-Series and Producer Price Index (PPI) *

• Context (BS): Department for Promotion of Industry and Internal Trade (DPIIT) is revising the Wholesale Price Index (WPI) base year to 2022-23 and introducing a new Producer Price Index (PPI).

• Transition: WPI and PPI will run concurrently for five years to ease the commercial-contract transition, after which WPI will be fully phased out.

Key Reforms in the WPI Revision

• Base & Basket: The new WPI series will replace the 2011-12 base year with 2022-23, and item coverage will expand from 697 to 957 commodities.
• Weighting Basis: It assigns weights based on Gross Value of Output (GVO) rather than Net Traded Value (NTV) to better reflect domestic production.
• Energy Items: Solar, wind, and nuclear electricity have been added to the Fuel & Power category for the first time. Crude petroleum and natural gas have been moved from ‘Primary Articles’ to ‘Fuel & Power’.
• Methodology: The series shifts to a ‘chain-based short-term formulation’ from the long-term one and introduces ‘Targeted Mean Imputation’ to handle missing data.

About Producer Price Index (PPI)

• Measures average change in selling prices received by domestic producers, aligning with IMF best practices.
• Scope: It captures inflation from the producer’s perspective by measuring both input costs and output prices, and, unlike WPI, it extends coverage into the services sector.
• Structure: The PPI framework uses a 2022-23 base year and comprises three pillars:
  1. Output Prices: Output Producer Price Index (OPPI) will be compiled monthly using the basic price producers receive for finished goods as they leave the production facility.
  2. Input Costs: Trial Input Producer Price Index (IPPI) is compiled monthly using purchaser prices for the manufacturing sector to capture input-cost burdens.
  3. Service Prices: Service Producer Price Index (Service PPI) is compiled quarterly across seven verticals: Banking, Securities Transactions, Insurance, Pension Fund Management, Railways, Air Passenger Transport, and Telecom.

Read More> Inflation

{GS3 – S&T} 5G Network Slicing and Net Neutrality *

• Context (IE): Bharti Airtel launched ‘Priority Postpaid’ service, offering premium users preferential network access via 5G network slicing, igniting debate on India’s net neutrality.

About Network Slicing

• Network slicing divides a single physical 5G network into multiple independent virtual networks, each customized for different applications, services, or customers.
• It uses Software-Defined Networking (SDN) and Network Functions Virtualization (NFV) infrastructure to dynamically allocate bandwidth, latency, and other resources.
• Types: International Telecommunication Union (ITU) and Telecom standards (3GPP) classify network slicing into three use cases (5G triangle).
  1. Enhanced Mobile Broadband (eMBB): For high-data-rate services such as high-definition video streaming, cloud gaming, and virtual reality.
  2. Ultra-Reliable Low-Latency Communication (URLLC): For mission-critical applications requiring strict reliability and very low latency.
  3. Massive Machine-Type Communication (mMTC): Supports dense Internet of Things (IoT) devices like smart city utility sensors.
• Key Benefits: Operators can tailor one physical network for varied industry needs, while limiting cyber threats within one virtual layer.
  • The US, UK, Singapore, and South Korea have deployed network slicing for critical applications.
• Key Concern: Premium slices may conflict with net neutrality and regulatory frameworks.

Net Neutrality and India’s Regulatory Framework

• Net neutrality requires telecom operators to treat all internet traffic equally, without discrimination based on content, application, service, or sender.
• The Department of Telecommunications (DoT) issued net neutrality rules in 2018, based on Telecom Regulatory Authority of India (TRAI) recommendations. It doesn’t cover or define 5G network slicing.
• Under these binding rules, Internet Service Providers (ISPs) cannot block legal websites, throttle speeds, or offer paid prioritization for specific platforms.
• Enforcement: DoT amended Unified License agreements, specifying that violations of non-discriminatory principles can lead to license cancellation.
• Exemptions: Specialized services like telemedicine, remote surgery, autonomous transport, and critical IoT are exempted, along with court-ordered content blocks.
  • Traffic Management Practices allow temporary traffic control during cyber threats and congestion.

{Prelims – A&C} Lavender Festival 2026

• Context (PIB): 4^th Lavender Festival is being organised in Bhaderwah (Doda, J&K) under the theme “Lavender Goes Global”.

• Organised By: CSIR-Indian Institute of Integrative Medicine (CSIR-IIIM) under the CSIR Aroma Mission to showcase the success of the Purple Revolution.
• The festival highlights the transformation of Bhaderwah, known as the birthplace of India’s Purple Revolution, into a major lavender cultivation and aroma-industry hub.

{Prelims – Envi} Giant “Potato Patch” Coral

• Context (DTE): Researchers have documented a massive coral colony near Kadmat Island in Lakshadweep, known locally as the “Potato Patch”.

• The coral belongs to the species Pavona clavus and may be among the world’s largest known living coral colonies. Preliminary estimates suggest the coral may be 700–1,800 years old.
• Covering an estimated 4,250 sq m, it exceeds the previously largest known Pavona clavus colony of ~3,973 sq m on Australia’s Great Barrier Reef.
• Researchers describe it as a “natural time capsule”, preserving biological, genetic, and paleoclimatic information that can help model future environmental responses across the Indian Ocean.

Read More> Coral Reef

{Prelims – Geo} Majuli Island

• Context (PIB): Study reconstructed 4,000 years of climate history of Majuli Island using sediments from Sakali Wetland. 

• Majuli is the world’s largest inhabited river island and India’s first island district, bounded to the south by the Brahmaputra and to the north by the Kherkutia Xuti (an anabranch of Brahmaputra) and Subansiri River.
• It is cultural capital of Assam and epicenter of Assamese Neo-Vaishnavism, led by saint Srimanta Sankardeva.
• Tribes: Mising (form the largest demographic), Deori and Sonowal Kachari.
• Included in the UNESCO Tentative List of World Heritage Sites in the “Cultural Landscape” category in 2004.

Read More> Majuli River Island

{Prelims – Geo} Dust Storm

• Context (IE): A dust storm engulfed several northern and western districts of Rajasthan. The extreme weather was triggered by active Western Disturbance interacting with a cyclonic circulation.

• Dust storms, locally called Andhi, primarily strike northern and western India during the pre-monsoon months of March to June. These storms develop when high summer temperatures destabilize the lower atmosphere, letting convective systems lift topsoil and desert sand into miles-high walls of dust.
• Hotspot: The primary origin zone is the Thar Desert in Rajasthan. Strong winds push the dust plumes eastward into Punjab, Haryana, Delhi-NCR, and western Uttar Pradesh.
• Impacts: They strip nutrient-rich topsoil and damage standing crops, accelerating land degradation. Inhaled particulate matter triggers asthma and respiratory disease.
• Monsoon Pull: Dust aerosols absorb solar radiation, acting as an elevated heat pump that warms the mid-to-upper troposphere over the Indo-Gangetic Plain, drawing the moisture-laden Indian Summer Monsoon toward the subcontinent.

{Prelims – MDoNER} Mission Senehjori

• Context (NOA | PIB): Ministry of Development of North Eastern Region (MDoNER) and Assam Government launched Mission Senehjori for Assam Muga Silk.

• Objectives: Build a traceable, export-driven economy to boost income for 2.5 lakh weavers and rearers; promote silk heritage tourism via Muga Silk Trail, Silk Tourism Park, and Muga Utsav festivals.
• Uses a cluster-based model in key districts and plans to regenerate host plants (Som and Soalu) to improve silkworm ecology.
• Key Targets: 5 modern reeling units, a Muga Spun Silk Mill for recycling silk waste, FPOs for collective bargaining, GI verification for traceability, and exports over 2,000 kg by 2028.

{Prelims – S&T} Project UDAYAK

• Context (PIB): Border Roads Organisation (BRO) celebrated the 37th Raising Day of Project UDAYAK on 1 June 2026 at Doomdooma, Assam.

• Project UDAYAK is BRO’s strategic infrastructure project in Northeast India, enhancing connectivity, border security, and socio-economic development.
• Area of Responsibility: Covers Anjaw, Lohit, Dibang Valley, Longding, Tirap and Changlang districts of Arunachal Pradesh, along with parts of Assam.

{Prelims – S&T} RudraM-II Missile

• Context (AIR): DRDO & the Indian Air Force successfully flight-tested the indigenous RudraM-II missile.

• RudraM-II is an indigenous air-to-surface anti-radiation missile (ARM) designed to destroy enemy radar and communication assets.
• Developed by DRDO through Research Centre Imarat, Hyderabad.
• Purpose: Developed to enhance the IAF’s Suppression of Enemy Air Defence (SEAD) capability by neutralising enemy air-defence systems.
• Detects, tracks, and homes in on enemy radar emissions, communication systems, and other radio-frequency sources.
• Capable of striking targets upto ~300 km away & achieving speeds of ~Mach 5.5 with payload of upto 200 KG.
• Intended to replace the Russian-origin Kh-31, strengthening India’s defence self-reliance.

{Prelims – Social Sector – Education} All-India Survey of Higher Education (AISHE)

• Context (TH): AISHE portal for the academic years 2025-26 and 2026-27 has been opened by the Union Ministry of Education for the new and unregistered institutions.

• AISHE is an annual web-based survey that collects comprehensive information relating to student enrolment, faculty strength, academic programmes, infrastructure and financial aspects of higher education institutions (HEIs) across the country.
• The data serves as a vital resource for planning, policy formulation and development of the higher education sector.
• Ministry of Education has been conducting AISHE since 2010-11, covering all HEIs in the country.

Read More> Higher Education in India