UPSC & PPSC Important News Today – 4 October 2026
Read the most important UPSC & PPSC Current Affairs, Prelims Facts and Mains Perspectives from The Hindu (4 October 2026). Prepared by DRONA IAS Academy, Patiala.
1. Special Intensive Revision (SIR) of Electoral Rolls
Why in News?
The revision of electoral rolls continues to remain in focus. In Uttarakhand, the final electoral roll after the Special Intensive Revision exercise contains about 71.59 lakh electors, with large-scale deletions as well as fresh additions during the revision process.
UPSC/PPSC Importance
Important for Election Commission of India, electoral rolls, free and fair elections, voter registration, electoral integrity and democratic participation.
Prelims Facts
- Article 324 provides for the Election Commission of India.
- Preparation and revision of electoral rolls are governed primarily by the Representation of the People Act, 1950.
- Form 6 is used for applying for inclusion of a name in the electoral roll.
- The Electoral Registration Officer (ERO) is responsible for preparation and revision of electoral rolls in a constituency.
- BLO stands for Booth Level Officer.
- Electoral-roll revision seeks to add eligible voters and remove duplicate, shifted, deceased or otherwise ineligible entries according to law.
Mains Perspective
GS-II: Elections, Election Commission, Representation & Democratic Institutions
Revision Note: Electoral Roll Revision = Inclusion + Accuracy + Transparency + Due Process + Electoral Integrity.
2. Backward Class Reservation in Local Body Elections
Why in News?
The Andhra Pradesh government has approached the Supreme Court challenging a High Court decision concerning reservation for Backward Classes in local-body elections. The dispute has again brought the constitutional framework governing reservation in Panchayats and Municipalities into focus.
UPSC/PPSC Importance
Important for local self-government, reservation, Panchayati Raj Institutions, municipalities, social justice, federalism and constitutional provisions governing local bodies.
Prelims Facts
- Article 243D deals with reservation of seats in Panchayats.
- Article 243T deals with reservation of seats in Municipalities.
- Articles 243D(6) and 243T(6) enable State legislatures to provide reservation in favour of backward classes in local bodies.
- The 73rd Constitutional Amendment relates to Panchayats.
- The 74th Constitutional Amendment relates to Municipalities.
- Reservation for backward classes in local bodies has also been shaped by Supreme Court jurisprudence.
Mains Perspective
GS-II: Local Governance, Social Justice, Reservation & Constitutional Bodies
Revision Note: Local Body Reservation = Social Justice + Empirical Basis + Constitutional Limits + Political Representation.
3. River Interlinking & Invasive Alien Species
Why in News?
Scientists have raised concerns that India’s proposed river-interlinking projects could unintentionally create pathways for the spread of invasive alien species between river basins. Connecting previously separate aquatic ecosystems may facilitate movement of invasive organisms and aquatic pathogens.
UPSC/PPSC Importance
Important for river interlinking, invasive alien species, biodiversity, aquatic ecosystems, environmental impact assessment, water management and ecological security.
Prelims Facts
- Invasive alien species are organisms introduced outside their natural range that may cause ecological or economic harm.
- River interlinking can increase hydrological connectivity between different river basins.
- Greater connectivity can also facilitate the movement of aquatic organisms and pathogens.
- The Ganga and Mahanadi basins are important in discussions concerning inter-basin ecological connectivity.
- Invasive species can affect native biodiversity, fisheries and local livelihoods.
Mains Perspective
GS-III: Environment, Biodiversity, Water Resources & Environmental Impact
Revision Note: River Interlinking = Water Security Benefits + Ecological Connectivity + Invasive Species Risk + Basin-Level Assessment.
4. India–Bangladesh Extradition & Sheikh Hasina
Why in News?
The issue of the possible extradition of former Bangladesh Prime Minister Sheikh Hasina from India remains part of India–Bangladesh diplomatic discussions. Any extradition would have to proceed through the applicable legal and treaty framework.
UPSC/PPSC Importance
Important for India–Bangladesh relations, extradition treaties, neighbourhood policy, international law and India’s diplomatic relations in South Asia.
Prelims Facts
- India and Bangladesh signed an Extradition Treaty in 2013.
- Extradition refers to the formal surrender of a person by one State to another for prosecution or punishment according to law.
- An extradition request is examined according to the relevant treaty and domestic legal framework.
- Extradition treaties may contain specified grounds for refusing a request.
- Bangladesh shares land boundaries with India and Myanmar.
Mains Perspective
GS-II: India and its Neighbourhood, International Agreements & Foreign Policy
Revision Note: Extradition = Treaty Obligations + Domestic Law + Diplomatic Relations + Due Process.
5. India’s Fighter Aircraft Procurement & Defence Modernisation
Why in News?
India’s proposed procurement of 114 Multi-Role Fighter Aircraft (MRFA) remains an important part of efforts to strengthen the Indian Air Force’s combat capability. The issue is linked with fighter-squadron strength, indigenous defence manufacturing and long-term aerospace capability.
UPSC/PPSC Importance
Important for defence modernisation, Indian Air Force, defence procurement, indigenous manufacturing, strategic autonomy and national security.
Prelims Facts
- MRFA stands for Multi-Role Fighter Aircraft.
- The Indian Air Force is one of the three armed services of India.
- Rafale is a multirole fighter aircraft manufactured by France’s Dassault Aviation.
- AMCA is India’s Advanced Medium Combat Aircraft programme.
- Indigenous fighter-aircraft and aero-engine development are important components of defence self-reliance.
Mains Perspective
GS-III: Defence, Security, Indigenisation & Technology
Revision Note: Air Power Modernisation = Capability + Indigenous Production + Technology Transfer + Strategic Autonomy.
6. Parliamentary Standing Committees
Why in News?
The constitution of parliamentary committees and the appointment of MPs as committee chairpersons have brought renewed attention to the role of Department-related Parliamentary Standing Committees in legislative scrutiny and executive accountability.
UPSC/PPSC Importance
Important for Parliament, legislative scrutiny, executive accountability, parliamentary committees, financial oversight and functioning of Indian democracy.
Prelims Facts
- Parliamentary committees allow detailed examination of legislative and policy matters.
- Department-related Standing Committees examine the work of different ministries and departments.
- They may examine Demands for Grants, Bills referred to them and annual reports of ministries.
- Committees include members from both the Lok Sabha and Rajya Sabha.
- Committee reports are important instruments of parliamentary scrutiny and accountability.
Mains Perspective
GS-II: Parliament, Accountability, Legislative Process & Governance
Revision Note: Parliamentary Committees = Detailed Scrutiny + Bipartisan Deliberation + Executive Accountability + Better Legislation.
7. 3D-Printed Houses under PMAY-G
Why in News?
Andhra Pradesh is implementing a pilot project using 3D Concrete Printing (3DCP) technology for rural houses under the Pradhan Mantri Awaas Yojana–Gramin (PMAY-G). The initiative explores the use of advanced construction technology for affordable rural housing.
UPSC/PPSC Importance
Important for PMAY-G, affordable housing, 3D printing, construction technology, rural development, innovation and digital manufacturing.
Prelims Facts
- PMAY-G stands for Pradhan Mantri Awaas Yojana–Gramin.
- The scheme aims to support eligible rural households in obtaining permanent houses.
- 3D Concrete Printing is an additive-manufacturing technique used in construction.
- The technology can use computer-controlled robotic systems to deposit construction material layer by layer.
- BIM stands for Building Information Modelling.
Mains Perspective
GS-II: Welfare Schemes & Rural Development | GS-III: Science, Technology & Infrastructure
Revision Note: 3D-Printed Housing = Technology + Faster Construction + Affordable Housing + Rural Development.
8. AI Data Centres — Energy & Water Footprint
Why in News?
The rapid expansion of Artificial Intelligence and data centres is drawing attention to their growing electricity and water requirements. High-density computing systems require substantial power as well as cooling infrastructure, creating new sustainability challenges.
UPSC/PPSC Importance
Important for Artificial Intelligence, data centres, digital infrastructure, energy consumption, water security, climate sustainability and green technology.
Prelims Facts
- Data centres contain computing and storage infrastructure used to process and manage digital information.
- AI workloads can require significantly greater computing power than many conventional digital workloads.
- High-performance servers generate substantial heat and therefore require cooling.
- Some cooling systems can have significant water requirements.
- Energy-efficient hardware, renewable power and improved cooling systems can reduce the environmental footprint of data centres.
Mains Perspective
GS-III: Science & Technology, Energy, Environment & Digital Infrastructure
Revision Note: Sustainable AI = Computing Power + Energy Efficiency + Water Management + Renewable Energy + Responsible Digital Infrastructure.
📰 Mains Focus – Electoral Rolls, SIR & Free and Fair Elections
Accurate electoral rolls are fundamental to free and fair elections. Electoral-roll revision must ensure that eligible citizens are included while duplicate, deceased, shifted or otherwise ineligible entries are dealt with according to law. At the same time, the process must provide adequate transparency and procedural safeguards so that eligible voters are not wrongly excluded.
Key Issues
- Free and Fair Elections
- Electoral Roll Accuracy
- Election Commission of India
- Voter Inclusion
- Deletion of Ineligible Entries
- Transparency
- Due Process
- Electoral Integrity
Mains Takeaway: Electoral-roll revision should balance the objective of maintaining accurate voter lists with transparency, due process and protection against wrongful exclusion of eligible citizens.
⚡ Prelims Concept – Electoral Rolls & Form 6
- Article 324 deals with the Election Commission of India.
- The Representation of the People Act, 1950 contains major provisions relating to electoral rolls.
- Form 6 is used for applying for inclusion of a name in the electoral roll.
- ERO stands for Electoral Registration Officer.
- BLO stands for Booth Level Officer.
Prelims Trap: The Representation of the People Act, 1950 is particularly important for electoral rolls and allocation of seats, while the Representation of the People Act, 1951 deals extensively with the conduct of elections and election-related matters.
🔥 Most Important Topics for UPSC & PPSC Today
- Special Intensive Revision (SIR) of Electoral Rolls
- Backward Class Reservation in Local Body Elections
- River Interlinking & Invasive Alien Species
- India–Bangladesh Extradition & Sheikh Hasina
- Fighter Aircraft Procurement & Defence Modernisation
- Parliamentary Standing Committees
- 3D-Printed Houses under PMAY-G
- AI Data Centres — Energy & Water Footprint
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