How to use today’s GK page
A quick routine: skim One-Liners → test with the Mini-Quiz → deepen with Short Notes.
📌 One-Liners
- Scroll the categories (they may change daily).
- Read the bold title then the short sub-line for context.
- Watch for acronyms—today’s quiz/notes expand them.
🧠 Mini-Quiz
- Answer the 3 MCQs without peeking.
- Tap Submit to reveal answers and explanations.
- Note why an option is correct—this locks facts into memory.
📒 Short Notes
- Read the 3 compact explainers—each builds on a different topic.
- Use them for a quick recap or add to your personal notes.
- Great for mains/PI: definitions, timelines, and “why it matters”.
📝 Short Notes • 27 May 2025
3 compact, exam-focused notes built from today’s GK365 one-liners. Use for last-minute revision.
RBI Transfers Record Surplus of ₹2.69 Trillion to Government — CRB Raised to 7.5%
EconomyWhat: The Reserve Bank of India (RBI) approved a record surplus transfer of ₹2.69 trillion (approximately ₹2,69,000 crore) to the central government for FY 2024–25 — 27% higher than the ₹2.11 trillion transferred in FY24. This is the largest dividend ever paid by the RBI to the government. The primary driver of the record surplus was income from foreign exchange (forex) operations — gains from buying and selling foreign currencies to manage the rupee’s exchange rate. Simultaneously, the RBI’s Central Board also raised the Contingency Risk Buffer (CRB) to 7.5%, which now becomes the new upper band of the acceptable CRB range (previously 5.5–6.5%).
How: The RBI generates income from multiple sources: interest on government securities held as domestic assets, interest on foreign currency assets (primarily US Treasury bonds and IMF deposits), gains from forex market interventions, and fees from financial services. After meeting its expenses and provisioning for the CRB — a reserve maintained to absorb unexpected losses from market risk, credit risk, and operational shocks — the residual surplus is transferred to the Government of India under Section 47 of the RBI Act, 1934. The Bimal Jalan Committee (2018–19) recommended a CRB range of 5.5–6.5% of the RBI’s balance sheet; the new 7.5% upper band reflects a more conservative provisioning stance even as a record dividend is paid out.
Why: RBI surplus transfer, the CRB framework, and the Bimal Jalan Committee are perennial UPSC Prelims GS-III (Economy) and Banking Awareness questions. Key facts: RBI surplus FY25 — ₹2.69 trillion (record, 27% higher than FY24’s ₹2.11 trillion); driver — forex operations income; CRB raised to — 7.5% (new upper band); legal basis — Section 47, RBI Act 1934; Bimal Jalan Committee — recommended CRB range 5.5–6.5%. For the government, a larger RBI dividend improves fiscal space — reducing the need for additional borrowing or tax increases to meet budgetary commitments. This is a key GS-III fiscal policy linkage.
India–WHO MoU: Ayush Traditional Medicine Practices Codified Under International Classification
Digital GovernanceWhat: India’s Ministry of Ayush signed a Memorandum of Understanding (MoU) with the World Health Organisation (WHO) to develop a Traditional Medicine Module under the International Classification of Health Interventions (ICHI). India has committed USD 3 million to this initiative. Under the module, key Indian traditional medicine practices — Panchakarma (Ayurveda’s five therapeutic procedures), Yoga, Siddha (Tamil traditional medicine), and Unani (Greco-Arabic medicine) — will be systematically codified with standardised terminology and classification codes. ICHI is WHO’s framework for classifying health interventions globally — parallel to ICD (International Classification of Diseases) for diagnoses — and inclusion of Ayush practices gives them formal international recognition within global health data systems.
How: The ICHI codification process works by assigning unique alphanumeric codes to health interventions, enabling countries to collect, compare, and analyse health data consistently across borders. By codifying Panchakarma, Yoga therapy, Siddha treatments, and Unani procedures within ICHI, India ensures these practices can be: recorded in electronic health records globally, reimbursed by health insurance systems that use ICHI codes, researched through internationally comparable clinical datasets, and recognised in WHO member countries’ health policies. This builds directly on the WHO’s Traditional Medicine Strategy 2025–2034 and India’s leadership of the WHO Global Centre for Traditional Medicine (GCTM), established at Jamnagar, Gujarat in 2022.
Why: India–WHO collaborations, the Ayush sector, and international health classification systems are tested in UPSC Prelims GS-II (Health, Governance) and GS-III (Science). Key facts: MoU — India’s Ministry of Ayush + WHO; framework — ICHI (International Classification of Health Interventions); India’s contribution — USD 3 million; practices codified — Panchakarma, Yoga, Siddha, Unani; related institution — WHO Global Centre for Traditional Medicine (GCTM), Jamnagar, Gujarat (est. 2022). The distinction between ICHI (interventions) and ICD (diseases/diagnoses) is an important technical MCQ anchor. India’s USD 3 million contribution signals strategic soft power investment in shaping global health standards around its traditional knowledge systems.
Jarosite Found in Gujarat’s Kachchh — The Mineral That Links Earth’s Desert Geology to Mars
Science & ResearchWhat: Scientists identified Jarosite — a hydrated iron–sulfate mineral with the chemical formula KFe₃(SO₄)₂(OH)₆ — in the Kachchh (Kutch) region of Gujarat, India. This discovery is significant because Jarosite is also one of the key minerals detected on Mars by NASA’s rovers Spirit, Opportunity, and Curiosity — making the Kachchh deposits a valuable terrestrial analogue for studying Mars’s geological and environmental history. The mineral forms under very specific conditions: highly acidic, iron-rich, sulfate-rich, oxidising environments with limited water activity — conditions that once existed on Mars’s surface. Studying how Jarosite forms and preserves in Gujarat’s arid, sulfate-rich geology helps scientists reconstruct when and how long liquid water existed on Mars.
How: Jarosite’s significance as a “geological clock” derives from its precise formation window: it crystallises only within a narrow range of pH (highly acidic, below 3), temperature, and oxidation state. By analysing the isotopic ratios and crystal structure of Jarosite samples — both from Earth analogues like Kachchh and from Mars rover data — geologists can estimate the age of the wet, acidic conditions that produced them. On Mars, Opportunity rover’s discovery of Jarosite in Meridiani Planum in 2004 was direct evidence that liquid water once pooled on the Martian surface — a landmark finding in astrobiology. The Kachchh Jarosite deposits, formed in a geologically similar hyper-arid saline environment, allow laboratory experiments that cannot be conducted on Mars directly.
Why: Astrobiology, Mars mission findings, and terrestrial analogues for Mars are tested in UPSC Prelims GS-III (Science & Technology, Space). Key facts: mineral — Jarosite; formula — KFe₃(SO₄)₂(OH)₆; found in India — Kachchh (Kutch), Gujarat; Mars rovers that detected Jarosite — Spirit, Opportunity (2004, Meridiani Planum), Curiosity; significance — forms only under highly acidic + iron-rich + sulfate-rich + oxidising conditions; role — geological clock for reconstructing liquid water history on Mars. The Kachchh region — already significant as the site of the Indus Valley Civilisation (Dholavira, a UNESCO World Heritage Site) — now gains planetary science relevance, a useful memory hook for exam context.
🧠 Mini-Quiz: Test Your Recall
3 questions from today’s one-liners. No peeking!
The RBI transferred a record surplus of ₹2.69 trillion to the government for FY25. Under which section of the RBI Act, 1934, is this surplus transfer made?
Maharashtra’s approval completes the merger of Konkan Railway with Indian Railways. What is the total length of the Konkan Railway line?
India signed an MoU with WHO to codify Ayush practices under the International Classification of Health Interventions (ICHI). Which of the following Indian traditional medicine systems is NOT covered under this MoU?
📒 Short Notes: Build Concept Depth (3 Topics)
Each note gives you a quick What–How–Why on a high-yield news item from today’s GK365 one-liners.
Konkan Railway–Indian Railways Merger: Maharashtra’s Approval Clears Final Hurdle
PolityWhat: Maharashtra’s cabinet became the last state government to approve the merger of Konkan Railway Corporation Limited (KRCL) with Indian Railways, clearing the final hurdle for the long-pending integration. Maharashtra’s approval came with two conditions: reimbursement of ₹396.54 crore (Maharashtra’s capital investment in KRCL) and retention of the ‘Konkan Railway’ brand name post-merger. The Konkan Railway line spans 741 kilometres along India’s western coast, connecting Roha in Maharashtra to Thokur near Mangaluru in Karnataka, running through the entire coastal stretch of Goa. KRCL was established in 1990 as a special purpose vehicle with equity shareholding from the central government and the states of Maharashtra, Goa, Karnataka, and Kerala.
How: The Konkan Railway was built between 1990 and 1998 — one of independent India’s most challenging civil engineering projects, requiring 2,000 bridges (including the Panval Nadi Viaduct, one of India’s highest rail bridges), 92 tunnels (including the Karbude Tunnel at 6.5 km, then the longest in India), and cutting through the Western Ghats’ dense terrain. The merger with Indian Railways will integrate KRCL’s assets, staff, and operations under the Ministry of Railways’ unified command — expected to improve maintenance funding, enable faster electrification, and facilitate seamless ticketing. The retention of the ‘Konkan Railway’ name is symbolically important given the line’s iconic status and the regional identity it carries.
Why: Konkan Railway’s history, engineering landmarks, and the merger process are tested in UPSC Prelims GS-III (Infrastructure) and State PSC exams for Maharashtra, Goa, Karnataka, and Kerala. Key facts: KRCL established — 1990; line length — 741 km; route — Roha (Maharashtra) to Thokur (Mangaluru, Karnataka); passes through — Goa; shareholders — Central Government + Maharashtra, Goa, Karnataka, Kerala; Maharashtra’s merger conditions — ₹396.54 cr reimbursement + ‘Konkan Railway’ name retained; engineering feats — 2,000 bridges, 92 tunnels. The merger also has fiscal federalism dimensions — state shareholding in a central railway entity — making it a nuanced GS-II governance theme.
LIMA 2025, Langkawi: India Showcases BrahMos, HAL Dornier and INS Kavaratti at Malaysia Defence Expo
Defence & GeopoliticsWhat: The Langkawi International Maritime and Aerospace Exhibition (LIMA) 2025 — its 17th edition — was held in Langkawi, Malaysia. India’s participation featured a prominent India Pavilion showcasing three flagship defence assets: BrahMos (the supersonic cruise missile jointly developed by India’s DRDO and Russia’s NPO Mashinostroyeniya, with a range of ~290–500 km and speed of Mach 2.8–3.0), HAL Dornier 228 (the light transport and maritime patrol aircraft manufactured by Hindustan Aeronautics Limited), and INS Kavaratti (an Anti-Submarine Warfare corvette of the Indian Navy). Malaysia signed MoUs worth approximately USD 2.34 billion with various defence entities at the exhibition.
How: LIMA is one of Asia’s most important defence and aerospace exhibitions, held biennially in the Langkawi archipelago. India’s strategic interest in LIMA goes beyond trade: Southeast Asia is a critical theatre for India’s Act East Policy and its Indo-Pacific engagement under the SAGAR (Security and Growth for All in the Region) doctrine. BrahMos has already been exported to the Philippines (2022 — India’s first major missile export), and Malaysia’s interest in BrahMos at LIMA signals potential further Southeast Asian sales. The HAL Dornier 228 has been successfully exported to multiple countries and is positioned as a cost-effective maritime patrol solution for island-nation navies. INS Kavaratti’s presence signals India’s willingness to export corvette-class warships.
Why: Defence exhibitions, India’s defence export portfolio, and Act East Policy are tested in UPSC Prelims GS-II (International Relations) and GS-III (Defence). Key facts: exhibition — LIMA 2025 (17th edition); location — Langkawi, Malaysia; India Pavilion highlights — BrahMos (supersonic cruise missile, DRDO+Russia), HAL Dornier 228 (light transport/maritime patrol), INS Kavaratti (ASW corvette); Malaysia MoUs — ~USD 2.34 billion; BrahMos first export — Philippines (2022). India’s target of ₹50,000 crore in defence exports by FY29, and BrahMos as the flagship export product anchoring Southeast Asian defence diplomacy, are the connecting Mains GS-II/III narrative threads.
Rising NE Investors Summit 2025 — ₹4.3 Lakh Crore Investment Proposals for Northeast India
EconomyWhat: The Rising NE (Northeast) Investors Summit 2025, inaugurated by Prime Minister Narendra Modi at Bharat Mandapam, New Delhi, attracted investment proposals totalling ₹4.3 lakh crore (approximately ₹4.3 trillion) for India’s eight northeastern states — Arunachal Pradesh, Assam, Manipur, Meghalaya, Mizoram, Nagaland, Sikkim, and Tripura. The three largest individual pledges came from: Reliance Industries, Adani Group, and Vedanta — collectively committing ₹1.55 trillion. The summit is part of India’s sustained effort to transform the Northeast from a historically underinvested periphery into a gateway for trade and connectivity with Southeast Asia and Bangladesh under the Act East Policy.
How: The Northeast’s economic potential is anchored in several strategic advantages: abundant hydropower (the region holds an estimated 63,000 MW of hydropower potential — about 40% of India’s total); rich biodiversity and organic agriculture (six of eight states are among India’s top organic farming states); strategic border connectivity with Bangladesh, Bhutan, China, Myanmar, and Nepal; and significant deposits of oil, natural gas, and minerals in Assam and Arunachal Pradesh. The PM GatiShakti National Master Plan and the India-Myanmar-Thailand Trilateral Highway (when completed) are the infrastructure frameworks converting these advantages into investable opportunities. The ₹4.3 lakh crore figure, if materialised, would represent a transformational capital injection into a region whose combined GDP currently accounts for less than 3% of national GDP.
Why: Northeast India’s development, Act East Policy, and major investment summits are tested in UPSC Prelims GS-I (Indian Geography), GS-II (International Relations), and GS-III (Economy). Key facts: summit — Rising NE Investors Summit 2025; venue — Bharat Mandapam, New Delhi; PM Modi inaugurated; total proposals — ₹4.3 lakh crore; top pledges — Reliance + Adani + Vedanta = ₹1.55 trillion; Northeast — 8 states (AAMMMNST); hydropower potential — ~63,000 MW (40% of India’s total). The connectivity angle — Northeast as India’s gateway to ASEAN under Act East Policy — and the distinction between investment proposals and actual FDI/disbursements are important analytical nuances for Mains GS-II and GS-III answers.
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