Mains General Studies Paper I

The Hindu Kush Himalaya Monsoon Outlook 2026 by ICIMOD has warned that several parts of the HKH region may face below-normal monsoon rainfall, but the risk of climate hazards such as flash floods, landslides, droughts, heat stress and glacial lake outburst floods remains high. The issue is important for UPSC because it links Himalayan ecology, monsoon variability, El Niño, cryosphere change, disaster management, water security and India’s climate adaptation strategy.

A new Indicators of Global Climate Change study has reported that human-induced global warming reached its highest recorded level in 2025, mainly due to continued greenhouse gas emissions from fossil fuels, industry, land-use change and weakening aerosol cooling. The issue is important for UPSC because it connects climate science, Paris Agreement targets, carbon budgets, energy transition, India’s NDCs, climate justice and disaster-risk planning.

A recent Indian Express report highlighted that fertility rates are falling across the world despite very different economic and social conditions, while several governments are trying cash incentives, IVF support and housing policies to encourage childbirth. For UPSC, the issue is important because it links population, demographic dividend, ageing, women’s autonomy, social policy, health systems, labour markets and India’s long-term development planning.

The Zojila Tunnel, beneath the avalanche-prone Zojila Pass on National Highway-1, achieved its final excavation breakthrough on 9 June 2026 when engineers blasted through the last stretch of rock to link the Kashmir and Ladakh ends. Once operational, this high-altitude tunnel will provide India's first year-round road link between the Kashmir Valley and Ladakh, ending the region's winter isolation. This article explains the project's features, the strategic and defence significance of the route, India's broader Himalayan border-connectivity push, and the engineering and economic dimensions of this landmark.

With the Strait of Hormuz effectively closed and contested amid the 2026 Iran war, energy tankers are increasingly "going dark" — switching off their AIS transponders to cross the chokepoint undetected. Once a tactic of the sanctioned-oil "shadow fleet", dark transits now make up the majority of crossings, raising collision and enforcement risks. This article explains the geography and importance of the Strait of Hormuz, how AIS and the dark/shadow fleet work, the conflict context, India's heavy dependence on the strait for oil, LNG and LPG, India's energy-security response, and the wider issue of maritime chokepoints — all mapped to the UPSC syllabus.

AI authorship is back in the spotlight after the 2026 Commonwealth Short Story Prize was hit by allegations that some winning entries were AI-generated, with an AI detector flagging one Caribbean-winning story as "100% AI". The episode has revived a hard question: can software reliably tell whether a text was written by a human or a machine? This article explains the machine-learning science behind such detectors, the "AI tells" they look for, why the tools are not foolproof (false positives, low-entropy text, code and short text), and what this means for education, writing and publishing — all mapped to the UPSC syllabus.

A wildlife trail in the Bhondsi stretch of the Aravallis near Gurugram, Haryana, has led researchers to a cluster of prehistoric petroglyphs, cupules and Stone Age tools, now being documented by the ASI and the state archaeology department. The find is in the news for showing a rare "chronological continuity" of human activity in the Aravallis and for the threat it faces from the land mafia. This article explains what petroglyphs and cupules are, the Palaeolithic-to-Mesolithic chronology, the Acheulean tool tradition, comparisons with Bhimbetka and other rock-art sites, and the legal framework for protecting India's heritage — all mapped to the UPSC Prelims and Mains syllabus.

Amid the 2026 West Asia conflict and the disruption of the Strait of Hormuz, global crude prices have surged sharply. A steep fall in China's oil imports has unexpectedly freed up non-Hormuz supplies for India and other Asian buyers, cushioning the shock. This article explains the Strait of Hormuz chokepoint, India's oil import dependency, the impact of high oil prices on the current account deficit and inflation, India's Strategic Petroleum Reserves, and the government's energy security response — fully explained for UPSC Prelims and Mains.

The Maharashtra government has exempted a large iron-ore mining and processing project in Gadchiroli from wildlife clearance, stating the site does not fall in any tiger corridor — a claim that official maps and the NTCA-approved Tiger Conservation Plan appear to contradict. The project, involving diversion of 9.4 sq km of forest land by Lloyds Metals & Energy, overlaps the ecologically vital Tadoba–Indravati tiger corridor. This article explains what a tiger corridor is, the legal framework under the Wildlife (Protection) Act, 1972 (Section 38-O), Project Tiger, NTCA, the difference between forest, wildlife and environmental clearances, the role of the Forest Rights Act and PESA, and the development-versus-conservation debate this case raises.

The Supreme Court has invoked its extraordinary powers under Article 142 to crack down on rampant illegal sand mining inside the tri-state National Chambal Gharial Sanctuary, pulling up Rajasthan, Madhya Pradesh and Uttar Pradesh for "casual and indolent" inaction after two forest guards were killed in 2026. This in-depth explainer covers the Chambal sanctuary's unique ecology, the critically endangered gharial, India's sand-mining laws (MMDR Act, Sustainable Sand Mining Guidelines), the Deepak Kumar verdict, denotification controversies, and the constitutional principles of environmental governance — everything a UPSC aspirant needs in one place. Why in News The Supreme Court of India is hearing a suo motu case on large-scale illegal sand mining inside and around the National Chambal (Gharial) Sanctuary, a riverine protected area shared by Rajasthan, Madhya Pradesh and Uttar Pradesh. In a series of strongly worded orders through April and May 2026, the Court has rebuked the three state governments for administrative apathy, linked their inaction to the killing of frontline forest staff, and invoked Article 142 of the Constitution to issue sweeping enforcement directions. The case has brought national attention to sand mining as an environmental and rule-of-law crisis, and to the survival of the critically endangered gharial, whose last major wild stronghold is the Chambal.

A fast-spreading Ebola outbreak caused by the rare Bundibugyo virus in the Democratic Republic of the Congo (DRC) has been declared a Public Health Emergency of International Concern (PHEIC) by the WHO, with cross-border spread to Uganda. With no licensed vaccine or treatment for this strain, and an Indian-linked candidate vaccine in the pipeline, India has activated airport screening and surveillance. This article explains the virus, the PHEIC and IHR (2005) framework, the One Health approach, the vaccine gap, and India's epidemic-preparedness machinery.

The India Meteorological Department (IMD), in its second-stage long-range forecast on 29 May 2026, lowered its 2026 Southwest Monsoon estimate to 90% of the Long Period Average (LPA), pushing the season into the "below normal" category amid a developing El Niño. This article explains the monsoon mechanism, the meaning of LPA and IMD's rainfall categories, how El Niño (ENSO) and the Indian Ocean Dipole (IOD) shape Indian rainfall, the impact on agriculture and inflation, and why ample reservoirs and foodgrain buffers offer a silver lining.