Prelims Current Affairs includes World Post Day, National Wildlife Week 2026 , Joint Crediting Mechanism (Jcm), India’s First National Household Travel Survey 2025-26, 10th India Mobile Congress 2026, First Indigenous Fleet Support Ship ‘Surya’ Launched, Air Marshal Ashutosh Dixit Appointed Chief Of Air Staff, Francis Halzen Wins Nobel Prize In Physics 2026 & Nobel Prize In Chemistry 2026

IMPORTANT DAYS

1. WORLD POST DAY

Current Context: World Post Day is celebrated every year on 9 October, marking the anniversary of the establishment of the Universal Postal Union (UPU).

ABOUT WORLD POST DAY

• Established as an observance: The UPU Congress held in Tokyo in 1969 declared 9 October as World Post Day.
• Reason for the date: 9 October marks the establishment of the General Postal Union in 1874, which was later renamed the Universal Postal Union (UPU) in 1878.
• Year of establishment of UPU: 1874.
• UPU headquarters: Bern, Switzerland.
• UN connection: The UPU became a specialized agency of the United Nations in 1948.
• Purpose: To create awareness of the role of the postal sector in people’s and businesses’ everyday lives and its contribution to social and economic development.
• 2026 Theme: “World Post Day: One postal network, infinite possibilities”.
• It is the second oldest international organization worldwide (after the International Telecommunication Union, ITU).

IMPORTANT DAYS

2. NATIONAL WILDLIFE WEEK 2026

Current Context: National Wildlife Week 2026 is being observed across India from 2 to 8 October 2026 to promote awareness about wildlife conservation, habitat protection and biodiversity.

ABOUT NATIONAL WILDLIFE WEEK

• The 2026 theme is “Connecting Habitats, Thriving Wildlife.”
• The theme emphasizes the importance of wildlife corridors and connected habitats so that animals can move safely between fragmented habitats and human-wildlife conflict can be reduced.
• The initiative was conceptualised by the Indian Board of Wildlife in 1952. The first week-long celebration was held in 1957.
• Today, wildlife conservation is primarily coordinated at the Union level through the Ministry of Environment, Forest and Climate Change (MoEFCC) and its Wildlife Division, along with State/UT Forest Departments and other conservation institutions.
• World Wildlife Day is observed globally on 3 March.

ENVIRONMENT

3. JOINT CREDITING MECHANISM (JCM)

Current Context: India and Japan jointly launched the Operational Manual for the India–Japan Joint Crediting Mechanism (JCM) in New Delhi, marking the transition from institutional preparation to actual project implementation.

ABOUT THE JOINT CREDITING MECHANISM (JCM)

• It is a bilateral carbon-crediting mechanism through which Japan and its partner countries cooperate to deploy decarbonisation technologies, products, systems and infrastructure.
• Emission reductions or removals achieved through these projects are quantified and converted into JCM credits.
• These credits are allocated between the participating countries according to their respective contributions and can contribute to their Nationally Determined Contributions (NDCs), subject to the rules of the mechanism.

INDIA-JAPAN JCM

• India and Japan signed the Memorandum of Cooperation (MoC) establishing the JCM on 7 August 2025 in New Delhi.
• This became India’s first bilateral cooperation under Article 6 of the Paris Agreement.
• The first Joint Committee of the India-Japan JCM was held on 22 September 2025 in New Delhi and online.
• The two countries adopted the Rule of Implementation (RoI) on 8 June 2026, establishing the governance and procedural framework for the mechanism.

REPORTS / INDICES

4. INDIA’S FIRST NATIONAL HOUSEHOLD TRAVEL SURVEY 2025-26

Current Context: The National Statistics Office (NSO) under the Ministry of Statistics and Programme Implementation (MoSPI) released the key findings of India’s first-ever all-India National Household Travel Survey (NHTS), conducted from July 2025 to June 2026.

ABOUT NHTS 2025-26

• The survey provides a nationwide picture of how, why, how far and by which modes Indians travel, providing an evidence base for transport planning, infrastructure development and public-transport policies.

WHAT IS CONSIDERED ‘TRAVEL’ IN NHTS?

• A trip is considered travel under NHTS only when the distance travelled is more than 1 km.
• Trips of less than 1 km are not recorded as travel in the survey.
• The survey also introduced the concept of primary mode of travel, meaning the mode of transport used to cover the longest distance during a trip

KEY FINDINGS

• Student Mobility:4% of students aged 6 years and above travel at least 1 km to attend educational institutions.
• Most common modes: Walking (37.0%), Bus (29.5%), Bicycle (15.8%), Auto-rickshaw (10.5%), Two-wheeler (6.7%).
• Students aged 15-29 years recorded the highest regular trip participation at 77.0%.
• Workforce Mobility: Two-wheelers are the most widely used mode by workers, accounting for 42.6% of workplace travel.
• Rural: 37.1%; Urban: 52.3%.
• 6% of workers aged 15 years and above travel more than 1 km to reach workplaces.
• Travel Time: Average travel time is 23 minutes for students and 25 minutes for workers.
• 6% of students reach educational institutions within 30 minutes; 83.4% of workers reach fixed workplaces within 30 minutes.
• Peak Travel Hours:
• Students: 82% depart between 7 AM and 10 AM; peak period 8 AM to 9 AM.
• Workers: 94.9% leave before 10 AM; main peak period 8 AM to 10 AM.

SCIENCE & TECHNOLOGY

5.  10TH INDIA MOBILE CONGRESS 2026

Current Context: The 10th edition of the India Mobile Congress (IMC) 2026 begins on 7 October 2026 at Yashobhoomi, New Delhi, and will continue until 10 October 2026.

ABOUT IMC 2026

ABOUT INDIA MOBILE CONGRESS

• The theme of IMC 2026 is “Scale Without Boundaries”, reflecting India’s ambition to take digital technologies and telecom innovations from development and deployment to global-scale adoption.
• Organised by: Department of Telecommunications (DoT), Ministry of Communications, and the Cellular Operators Association of India (COAI).
• IMC brings together governments, telecom operators, technology companies, startups, investors, researchers and policymakers to discuss the future of digital connectivity and emerging technologies.
• The event is described as Asia’s largest digital technology forum.
• Focus: Expanding technological innovation beyond traditional limits and enabling emerging technologies to achieve wider and global-scale adoption.

KEY TECHNOLOGIES IN FOCUS

• 6G and next-generation communication networks
• Artificial Intelligence and AI-native telecom
• 5G monetisation
• Satellite communications
• Cybersecurity
• Semiconductors
• Quantum technologies
• Cloud and edge computing
• Digital infrastructure and DeepTech

DEFENCE

6. FIRST INDIGENOUS FLEET SUPPORT SHIP ‘SURYA’ LAUNCHED

Current Context: Raksha Mantri Rajnath Singh launched India’s first indigenous Fleet Support Ship (FSS-1), named ‘Surya’, at Hindustan Shipyard Limited (HSL), Visakhapatnam.

ABOUT FLEET SUPPORT SHIP ‘SURYA’

• A Fleet Support Ship (FSS) is a naval logistics vessel that provides essential supplies to warships while they are at sea.
• It can replenish naval vessels with fuel, water, ammunition and other stores, allowing frontline warships to remain deployed for longer periods without returning to harbour.
• Therefore, an FSS acts as a floating logistics and replenishment platform supporting the operational endurance of a naval fleet.

ABOUT ‘SURYA’

• Designation: FSS-1, the first of India’s Fleet Support Ships.
• Displacement: Approximately 43,500 tonnes.
• The ship entered the Bay of Bengal following its launch.
• The programme comprises five Fleet Support Ships for the Indian Navy.

APPOINTMENTS

7. AIR MARSHAL ASHUTOSH DIXIT APPOINTED CHIEF OF AIR STAFF

Current Context: Air Marshal Ashutosh Dixit has been appointed as the 29th Chief of the Air Staff (CAS) on 6 October 2026. He will assume charge in the rank of Air Chief Marshal from the afternoon of 31 October 2026.

ABOUT THE APPOINTMENT

• Commissioned into IAF: 6 December 1986, in the Fighter Stream.
• Present position: Vice Chief of the Air Staff.
• New position: 29th Chief of the Air Staff.
• Rank on assuming office: Air Chief Marshal.
• He has flown aircraft including Mirage-2000, MiG variants, Kiran, Jaguar, IL-78, Hawk and Tejas.

AWARDS & HONOURS

8. FRANCIS HALZEN WINS NOBEL PRIZE IN PHYSICS 2026

Current Context: The Royal Swedish Academy of Sciences awarded the 2026 Nobel Prize in Physics to Francis Halzen, University of Wisconsin-Madison, for his decisive contributions to the IceCube Neutrino Observatory and the discovery of high-energy neutrinos of astrophysical origin.

ABOUT FRANCIS HALZEN

• Francis Halzen is a Belgian-born American physicist and professor at the University of Wisconsin–Madison.
• He is the principal investigator of the IceCube Neutrino Observatory and was a driving force behind developing the idea of using Antarctic ice as a giant neutrino detector.
• His work transformed neutrinos from difficult-to-detect particles into powerful messengers for studying distant cosmic events.

WHAT ARE NEUTRINOS?

• Neutrinos are electrically neutral subatomic particles with extremely weak interactions with matter.
• They can travel through enormous amounts of matter, including the Earth itself, with very little interaction.
• Because they are electrically neutral, their paths are not bent by magnetic fields. Therefore, neutrinos can carry information directly from their sources across the Universe.
• However, their weak interaction makes them extremely difficult to detect. This required an enormous detector such as IceCube.

ICECUBE NEUTRINO OBSERVATORY

• IceCube is a giant neutrino detector located deep beneath the ice at the South Pole, Antarctica.
• It uses approximately one cubic kilometre of Antarctic ice as the detection medium and contains thousands of light-sensitive sensors.
• When a neutrino occasionally collides with an atomic nucleus in the ice, it produces charged particles that generate a faint flash of light.
• IceCube’s sensors detect these flashes and allow scientists to estimate the neutrino’s energy and direction.

SIGNIFICANCE

• Helped establish neutrino astronomy as an important branch of modern astrophysics.
• Contributed to the development of multi-messenger astronomy.
• High-energy neutrinos can help investigate active galactic nuclei, supermassive black holes, exploding stars, gamma-ray bursts and other high-energy cosmic accelerators.

AWARDS & HONOURS

9. NOBEL PRIZE IN CHEMISTRY 2026

Current Context: The Nobel Prize in Chemistry 2026 has been awarded jointly to Henri B. Kagan and Kenso Soai for their pioneering contributions to asymmetric organic synthesis.

ABOUT THE AWARD

• Prize citation: “For the discovery of non-linear effects and autocatalysis in asymmetric organic synthesis.”

HENRI B. KAGAN

• Nationality: French
• Born: 1930, Boulogne-Billancourt, France
• Institution: Université Paris-Sud, France

KENSO SOAI

• Nationality: Japanese
• Born: 1950, Hiroshima, Japan
• Institution: Tokyo University of Science, Japan

ABOUT ASYMMETRIC ORGANIC SYNTHESIS

• A branch of chemistry concerned with producing molecules in which one particular three-dimensional arrangement is formed preferentially over another.
• Many molecules exist in two forms that are mirror images of each other, known as enantiomers.
• Although such molecules may have the same chemical formula, their biological effects can be very different.
• Important in pharmaceuticals, agrochemicals, biotechnology, fine chemicals and materials science.

HENRI B. KAGAN AND NON-LINEAR EFFECTS

• Recognised for his work on non-linear effects in asymmetric synthesis.
• Demonstrated that small differences in the chirality of catalysts could sometimes lead to much larger changes in the selectivity of chemical reactions.

KENSO SOAI AND ASYMMETRIC AUTOCATALYSIS

• Best known for his discovery of asymmetric autocatalysis.
• In an autocatalytic reaction, a product of the reaction itself acts as a catalyst and helps produce more of the same product.
• Demonstrated that an extremely small initial imbalance between two mirror-image molecules could be amplified dramatically through autocatalysis.
• This phenomenon became known as the Soai reaction.

ABOUT CHIRALITY

• Chirality refers to the property of a molecule that cannot be superimposed on its mirror image.
• Common analogy: left hand and right hand are mirror images but cannot be perfectly superimposed.
• Important in medicines because two mirror-image forms of the same molecule may interact differently with biological systems.

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