UPSC Current Affairs Today – 3 June 2026
UPSC-focused current affairs explanation for Prelims, Mains GS Papers and Interview preparation by DRONA IAS Academy, Patiala.
1. IMD Revises Monsoon Onset Forecast Over Kerala
Why in News?
The India Meteorological Department (IMD) revised the expected onset of the southwest monsoon over Kerala to around June 4.
UPSC Explanation
The IMD had earlier forecast monsoon onset around May 26, but changing atmospheric conditions delayed its progress.
The development is important because monsoon performance directly affects agriculture, food inflation, groundwater recharge and rural economy.
Prelims Point
IMD declares monsoon onset over Kerala based on rainfall conditions, wind patterns and outgoing long-wave radiation.
Mains Perspective
Changing monsoon patterns and El Niño conditions create challenges for climate resilience, agriculture and water security in India.
UPSC Relevance
- GS Paper 1 – Indian Geography
- GS Paper 3 – Environment & Agriculture
- Indian Monsoon
- El Niño
- Climate Change
2. Editorial: India Cannot Afford ‘Harvest’ That China Wants
Editorial Theme
The editorial highlights that India should not allow diplomatic optics or external pressure to dictate India–China border negotiations.
UPSC Explanation
The article stresses strategic patience, long-term national interest and cautious diplomacy in dealing with China.
It also reflects concerns regarding unresolved border disputes and geopolitical competition in Asia.
Prelims Point
India and China continue to face tensions along the Line of Actual Control (LAC).
Mains Perspective
India must balance diplomacy, security preparedness and strategic autonomy in its China policy.
UPSC Relevance
- GS Paper 2 – International Relations
- India–China Relations
- Border Disputes
- Strategic Diplomacy
3. India Rejects Third-Party Role in India–Nepal Border Matters
Why in News?
India stated that there is no role for third parties in India–Nepal boundary issues after remarks made by Nepal’s Prime Minister.
UPSC Explanation
The Ministry of External Affairs said border issues between India and Nepal are bilateral matters handled through established diplomatic mechanisms.
The issue involves disputed regions such as Kalapani, Lipulekh and Susta.
Prelims Point
Kalapani and Lipulekh are disputed regions between India and Nepal near the tri-junction with China.
Mains Perspective
Managing relations with neighbouring countries is essential for regional stability and India’s neighbourhood policy.
UPSC Relevance
- GS Paper 2 – International Relations
- India–Nepal Relations
- Neighbourhood Policy
- Border Management
4. Supreme Court Gets Five New Judges
Why in News?
Five new judges took oath in the Supreme Court after the sanctioned strength of the Court was increased.
UPSC Explanation
The Centre recently increased the sanctioned strength of the Supreme Court to improve judicial efficiency and reduce pendency.
The appointments were made under Article 124 of the Constitution.
Prelims Point
Supreme Court judges are appointed by the President under Article 124 of the Constitution.
Mains Perspective
Judicial reforms and adequate judge strength are important for ensuring timely justice and reducing case pendency.
UPSC Relevance
- GS Paper 2 – Judiciary
- Constitution
- Judicial Reforms
- Access to Justice
5. High-Level Committee to Study Demographic Changes
Why in News?
The Centre’s newly formed committee on demographic changes held its first meeting.
UPSC Explanation
The panel will study demographic changes arising from illegal immigration and related concerns.
It may also review voter deletions linked with Special Intensive Revision (SIR) exercises.
Prelims Point
SIR is a document-based electoral verification exercise conducted by the Election Commission.
Mains Perspective
Illegal immigration and demographic changes have implications for internal security, governance and electoral systems.
UPSC Relevance
- GS Paper 2 – Governance
- GS Paper 3 – Internal Security
- Citizenship
- Illegal Immigration
- Electoral Reforms
6. AIIMS Study Shows Air Pollution Can Affect Foetal Growth
Why in News?
An AIIMS Delhi study explained how fine particulate matter from urban air pollution can affect foetal growth.
UPSC Explanation
The study showed that pollutants can cross the placental barrier and suppress proteins essential for foetal development.
The issue highlights the long-term public health burden of urban pollution.
Prelims Point
PM2.5 particles are extremely fine pollutants capable of entering deep into the lungs and bloodstream.
Mains Perspective
Air pollution is not only an environmental issue but also a major public health and developmental challenge.
UPSC Relevance
- GS Paper 3 – Environment
- GS Paper 2 – Health
- Air Pollution
- Public Health
7. Russia Launches Massive Drone and Missile Attack on Ukraine
Why in News?
Russia launched hundreds of drones and missiles targeting multiple Ukrainian cities, causing civilian casualties.
UPSC Explanation
The attack reflects the continuing intensity of the Russia–Ukraine conflict and the growing dependence on advanced missile systems and air defence technology.
The war continues to impact global energy markets, food security and geopolitics.
Prelims Point
Ukraine depends heavily on Western military and air defence support during the conflict.
Mains Perspective
The Russia–Ukraine war has reshaped global geopolitics, energy security and strategic alliances.
UPSC Relevance
- GS Paper 2 – International Relations
- Russia–Ukraine War
- Global Security
- Energy Security
