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GS Paper: GS1

  • Sowa-Rigpa Traditional Medicine

    Why in the News?

    A one-day Samyoga event was organised today at the National Institute of Sowa-Rigpa (NISR), Leh, with the participation of experts from 10 states of India.

    About Sowa-Rigpa:

    • Overview: Sowa-Rigpa, also known as Traditional Tibetan Medicine or the Amchi system, is among the oldest continuously practised medical systems in the world.
    • Origin: The term comes from the Bhoti language, meaning “knowledge of healing”, and dates back over 2,000 years.
    • Historical Development: It was codified in the 8th century CE during King Trisong Detsen’s reign and further developed in the 12th century.
    • Foundational Text: The Gyud-Zi (4 Tantras) integrates ideas from Ayurveda, Chinese medicine, Greek traditions, and Bon and Buddhist philosophy.
    • Global Presence: Sowa-Rigpa is practiced in Tibet, Mongolia, Bhutan, Nepal, and parts of Russia and China.
    • Indian Regions: In India, it is common in Ladakh, Sikkim, Arunachal Pradesh, Himachal Pradesh (Lahaul & Spiti), Jammu & Kashmir, and Darjeeling.
    • Core Beliefs: The system promotes disease prevention, longevity, and holistic mind-body well-being, viewing the body as a microcosm of nature in harmony with the environment.

    Diagnosis and Treatment:

    • Diagnostic Methods: Practitioners use pulse analysis, urine analysis, and detailed observation including case history.
    • Therapies Used: Treatments include diet and lifestyle adjustments, herbal medicines, Kunyé massage, moxibustion, acupuncture, and spiritual healing.
    • Ayurvedic Influence: About 75% of its theoretical base is derived from Ayurveda, especially the Ashtanga Hridaya.
    • Common Herbs: Shared medicinal herbs include Ashwagandha, Triphala, and Guggulu.

    Education and Recognition:

    • Traditional Training: Knowledge was historically passed through oral traditions, via guru-shishya parampara or family lineages.
    • Modern Institutions: The Central Council for Tibetan Medicine oversees education and practice standards.
    • National Institute: The National Institute of Sowa-Rigpa (NISR) in Leh leads in education, research, and policy implementation.
    • Government Recognition: Sowa-Rigpa has been officially recognised under AYUSH systems in India since 2010 and is promoted in multiple Himalayan states.
    [UPSC 2019] Recently, there was a growing awareness in our country about the importance of Himalayan nettle (Girardinia diversifolia) because it is found to be a sustainable source of:

    Options: (a) anti-malarial drug* (b) biodiesel (c) pulp for paper industry (d) textile fibre

     

  • Green Arabia Hypothesis in Human Evolution Research

    Why in the News?

    A recent study confirms that Arabia wasn’t always a desert wall but occasionally a green bridge between continents.

    About the Green Arabia Hypothesis:

    • Core Idea: It suggests that the Arabian Peninsula, now one of the driest places on Earth, experienced multiple humid phases over the past 8 million years, turning it into a green corridor for early migrations.
    • Challenge to Old Views: This theory challenges traditional models that excluded Arabia from early human dispersal routes in the ‘Out of Africa’ narrative.
    • Fossil Evidence: The discovery of fossils of crocodiles, hippos, and horses, dating up to 74,000 years ago, supports the claim that Arabia was once lush and habitable.

    Key Discoveries and Methods:

    • Archaeological Sites: Over 10,000 ancient lakebeds and sites over 500,000 years old were found, confirming Arabia’s role as a migration bridge between Africa and Eurasia.
    • Speleothem Analysis: 22 speleothem samples (mineral deposits formed within caves) from seven Saudi caves indicated humid phases between 7.44 million and 60,000 years ago.
    • Dating Techniques: Scientists used uranium-thorium dating to accurately time wet periods, revealing patterns linked to monsoon shifts and glacial cycles.
    • Environmental Impact: These wet intervals, though brief, supported vegetation, biodiversity, and water bodies, enabling human and animal settlements.

    Significance of the Study:

    • Biogeographic Role: Arabia is now viewed as a climate-sensitive migratory bridge, not a barrier, in human evolution and dispersal.
    • Climate Dependency: Human movement was influenced not just by geography, but by shifts in rainfall patterns and monsoonal activity.
    • Key Locations: Sites like Jubbah Oasis provided stone tools and lakebed evidence, validating early human habitation in the region.
    • Conclusion: Arabia’s periodic greening played a decisive role in early human migration, revising our understanding of ancient dispersal pathways out of Africa.
    [UPSC 2014] Which of the following phenomena might have influenced the evolution of organisms?

    1. Continental drift

    2. Glacial cycles Select the correct answer using the code given below.

    Options: (a) 1 only (b) 2 only (c) Both 1 and 2* (d) Neither 1 nor 2

     

  • Shipki La Mountain Pass opened for Tourists

    Why in the News?

    For the first time since India’s independence, the Shipki La pass in Himachal Pradesh has been opened to domestic tourists, marking a historic shift in India’s border tourism strategy.

    About Shipki La Pass:

    • It is a high-altitude mountain pass at 3,930 meters in the Kinnaur district of Himachal Pradesh, on the India–Tibet (China) border.
    • It is one of only 3 official border trading points between India and Tibet, along with Nathu La (Sikkim) and Lipulekh (Uttarakhand).
    • The Sutlej River (called Langqen Zangbo in Tibet) enters India near Shipki La, adding geographical importance to the area.
    • The pass lies along National Highway 5 (NH5) and is considered one of the highest motorable roads in India.
    • Historically, it served as a major trade route, enabling exchange of salt, wool, spices, yak tails, and tea between India and Tibet.
    • Trade was stopped in 1962 after the India-China war, resumed in 1992, but was halted again during COVID-19.
    • On June 9, 2025, Himachal Pradesh opened the pass to Indian tourists for the first time since Independence.
    • The initiative is part of a “Border Tourism” strategy, which includes the launch of the Sarhad Van Udyan (Border Forest Park).
    • It is also being considered as an alternate route for the Kailash Mansarovar Yatra.

    Other Important Himalayan Passes:

    • Ladakh and Jammu & Kashmir:
      • Khardung La (5,359 m) – Among the highest motorable passes; connects Leh with Nubra Valley.
      • Zoji La – Links Srinagar with Leh; vital for year-round Ladakh access.
      • Chang La, Baralacha La, Umling La (5,798 m) – Crucial for Leh connectivity and defense.
      • Rezang La – Famous for the 1962 India-China war battle.
      • Karakoram Pass, Aghil Pass, Demchok Pass – Strategic India-China border passes.
    • Himachal Pradesh:
      • Rohtang Pass – Connects Kullu with Lahaul-Spiti; key for tourism and logistics.
      • Parang La – Links Spiti Valley and Parvati Valley; used by trekkers and herders.
      • Shipki La – Now open to tourists; historical Indo-Tibetan trade route.
    • Uttarakhand:
      • Lipulekh Pass (5,632 m) – Used for Kailash Mansarovar Yatra.
      • Mana Pass – One of the highest vehicle-accessible passes; connects to Tibet.
      • Niti Pass, Milam Pass, Kuthi Pass – Historical trade and pilgrimage routes.
    • Sikkim:
      • Nathu La – Major border trade route; part of the ancient Silk Route.
      • Jelep La – Historical route linking Sikkim with Lhasa via Chumbi Valley.
    • Arunachal Pradesh:
      • Se La, Bum La – Connect to Tawang and Bhutan border.
      • Pangsau Pass, Diphu Pass – Connect Arunachal with Myanmar; important for WWII history and connectivity.
    [UPSC 2007] Which one of the following Himalayan passes was reopened around in the middle of the year 2006 to facilitate trade between India and China?

    Options: (a) Chang La (b) Jara La (c) Nathu La (d) Shipki La

     

  • India slips to 131st position in Global Gender Gap Index, 2025

    Why in the News?

    India has been ranked 131 out of 148 countries in the World Economic Forum’s (WEF) Global Gender Gap Report 2025, falling two places from last year’s rank of 129.

    India slips to 131st position in Global Gender Gap Index, 2025

    About the Global Gender Gap Index:

    • Overview: It is released annually by the World Economic Forum (WEF) and has been published since 2006.
    • Scope of Measurement: It evaluates gender parity across 4 key dimensions:
      1. Economic Participation and Opportunity,
      2. Educational Attainment,
      3. Health and Survival, and
      4. Political Empowerment.
    • Scoring Method: The index uses a 0–1 scale, where 1 represents full gender parity.
    • 2025 Edition Coverage: The 19th edition of the index covers 148 countries, making it a global benchmark for tracking gender gaps.

    Key Highlights of the 2025 Report:

    • India’s Performance: It is ranked 131 out of 148 countries, falling two spots from its 2024 rank of 129.
    • Overall Score: India’s overall gender parity score is 64.1%, placing it among the lowest-ranked in South Asia.
    • Economic Participation: India improved in this category, with the score rising to 40.7%, and estimated earned income parity increasing from 28.6% to 29.9%.
    • Labour Force Participation: India’s rate remains at 45.9%, its highest recorded level.
    • Educational Attainment: The country scored 97.1%, with gains in female literacy and tertiary education enrolment.
    • Health and Survival: This category showed marginal improvement due to a better sex ratio at birth and higher healthy life expectancy.
    • Political Empowerment: India declined in this area, with women in Parliament dropping from 14.7% to 13.8%, and women ministers decreasing from 6.5% to 5.6%.

    Global Trends and Significance:

    • Regional Rankings: The highest rank is held by Bangladesh in South Asia at 24, followed by Bhutan (119), Nepal (125), Sri Lanka (130), Maldives (138), and Pakistan (148).
    • Global Parity Score: The overall global gender gap has narrowed to 68.8%, marking the best progress since the COVID-19 pandemic.
    • Timeline for Equality: At the current pace, it will take 123 years to achieve full gender parity worldwide.
    • Top Performers: Top-rank is retained by Iceland for the 16th consecutive year, followed by Finland, Norway, the United Kingdom, and New Zealand.
    • Leadership Gap: Although women make up 41.2% of the global workforce, they occupy only 28.8% of leadership roles.

    Back2Basics: World Economic Forum (WEF)

    • The WEF is an international non-profit organization founded in 1971 by Klaus Schwab in Geneva, Switzerland.
    • It fosters public-private cooperation to tackle global issues through dialogue, partnerships, and research.
    • WEF is widely known for its annual Davos summit, which brings together world leaders from politics, business, and academia.
    • Major reports published include the Global Competitiveness Report, Global Risks Report, Global Social Mobility Report, Energy Transition Index, and Travel & Tourism Development Index.
    • These reports provide critical data and policy insights on issues like inequality, climate change, innovation, and economic recovery.
    • WEF is largely funded by its partner corporations, offering a platform to shape global agendas across sectors.

     

    [UPSC 2017] Which of the following gives ‘Global Gender Gap Index’ ranking to the countries of the world?

    Options: (a) World Economic Forum* (b) UN Human Rights Council (c) UN Women (d) World Health Organization

     

  • Poson Poya festival in Sri Lanka

    Why in the News?

    Sri Lanka is celebrating Poson Poya festival which commemorates the arrival of Buddhism over 2,000 years ago.

    About Poson Poya Festival:

    • Overview: Poson Poya is the second most important Buddhist festival in Sri Lanka, following Vesak in religious significance.
    • Date of Observance: It is celebrated on the full moon day of June, which corresponds to the seventh month of the Sinhalese calendar.
    • Historical Commemoration: The festival marks the arrival of Buddhism in Sri Lanka in 236 BCE, when Arahat Mahinda, son of Emperor Ashoka, met King Devanampiyatissa at Mihintale.
    • Key Locations: Celebrations are held across the island, with the most sacred observances taking place at Mihintale and Anuradhapura.
    • Ritual Activities: Devotees engage in temple visits, meditation, offerings, and acts of charity (Dana) as part of spiritual practice.
    • Cultural Expressions: Communities organize free food stalls (Dansalas), decorate homes and streets with lanterns, and display illuminated panels of Buddhist stories.

    How did Buddhism spread to Sri Lanka?

    • Following the Third Buddhist Council (held in 250 BC in Pataliputra) during Ashoka’s reign, it was decided to send missionaries to various regions, including Sri Lanka, to spread Buddhism.
    • The mission to Sri Lanka was led by Mahinda (Mahendra), Ashoka’s son, who converted King Devanampiya Tissa of Anuradhapura to Buddhism.
    • After several royal ladies expressed interest in joining the Buddhist monastic order, Mahinda sent for his sister, Sanghamitra, to initiate them.
      • Both siblings lived in Anuradhapura for the rest of their lives.
    • She played a pivotal role in establishing the Order of Nuns (Bhikkhuni Sangha or Meheini Sasna) in Sri Lanka, which later spread to other Theravada Buddhist countries like Burma, China, and Thailand.
    [UPSC 2024] Sanghabhuti, an Indian Buddhist monk, who travelled to China at the end of the fourth century AD, was the author of a commentary on:

    Options: (a) Prajnaparamita Sutra (b) Visuddhimagga (c) Sarvastivada Vinaya * (d) Lalitavistra

     

  • PM pays tributes to Sant Kabir

    Why in the News?

    Prime Minister paid tributes to Sant Kabir Das on his birth anniversary.

    PM pays tributes to Sant Kabir

    About Sant Kabir:  

    • Birth: Sant Kabir was likely born between 1398 and 1440 in Kashi (Varanasi, Uttar Pradesh) and passed away in 1518. According to legend, he was born to a Brahmin widow and later adopted by a Muslim couple, Niru and Nima.
    • Early Life: He was raised in the julaha (weaver) community, Kabir’s upbringing among the socially marginalized deeply shaped his teachings on equality and anti-casteism.
    • Spiritual Awakening: Though raised in a Muslim household, Kabir became a disciple of Swami Ramananda, a Vaishnava Bhakti saint, and was also influenced by Sufi mysticism, particularly through Shaikh Taqqi.
    • Death: Kabir died in Maghar (Uttar Pradesh) in 1518.
    • Legacy Site: Legend says his body miraculously vanished, leaving only flowers, which were divided between Hindus and Muslims. Today, a temple and a dargah stand at his burial site.

    His Teachings, Literary Style, and Cultural Impact:

    • Poetic Style: Kabir wrote in a mix of Hindi, Khari Boli, Bhojpuri, Punjabi, Urdu, Persian, and Marwari. His most famous compositions are Dohe (couplets) and Pads (devotional songs), noted for their simplicity, spiritual insight, and bold social critique.
    • Advocacy: He was a strong proponent of Nirguna Bhakti, the worship of a formless, attributeless God. He referred to this divine presence as Ram, Allah, or Shabda, emphasizing that God transcends name and form.
    • Spiritual Themes: Kabir’s work reflects non-dualism (Advaita) from the Upanishads and monotheism (Tawhid) from Islam. He believed that salvation lies in inner realization, not through scriptures, priests, or rituals.
    • Opposition to Ritualism: He condemned idolatry, pilgrimage, fasting, and caste-based discrimination, urging people to seek God within themselves.
    • Social Reform Focus: Kabir stood firmly for social equality, rejecting casteism and religious divisions. His verses challenged orthodoxy and critiqued hollow practices in every community.
    • Influence on Sikhism and Bhakti Movement: His poems are included in the Guru Granth Sahib, highlighting his impact on Sikhism. He also inspired spiritual figures like Guru Nanak, Dadu Dayal, and Jiwan Das.
    • Cultural Legacy: The Kabir Panth, a spiritual tradition based on his teachings, has over 9.6 million adherents today. Kabir is respected in Hinduism, Islam, and Sikhism alike.
    [2019] Consider the following statements:

    1. Saint Nimbarka was a contemporary of Akbar.

    2. Saint Kabir was greatly influenced by Shaikh Ahmad Sirhindi.

    Which of the statements given above is/are correct?

    Options: (a) 1 only (b) 2 only (c) Both 1 and 2 (d) Neither 1 nor 2*

     

  • India’s Population hits 146.39 Cr: UNFPA

    Why in the News?

    According to the United Nations Population Fund (UNFPA) report titled “State of the World Population 2025: The Real Fertility Crisis”, India’s population has reached an estimated 146.39 crore, officially making it the world’s most populous nation.

    India’s Population hits 146.39 Cr: UNFPA

    About United Nations Population Fund (UNFPA):

    • Origin: The organisation was established in 1969 as the UN Fund for Population Activities and renamed in 1987 as the UN Population Fund.
    • Headquarters: Its global headquarters is located in New York.
    • Mission Statement: UNFPA works to ensure that every pregnancy is wanted, every childbirth is safe, and every young person’s potential is fulfilled.
    • Mandate: To promote sexual and reproductive health and rights, including family planning, safe motherhood, and gender equality.
    • Governance Structure: UNFPA reports to a 36-member Executive Board, with representation from all regions, and receives guidance from ECOSOC and the United Nations General Assembly (UNGA).
    • Global Presence: UNFPA operates in over 150 countries, in coordination with national governments and UN development partners.
    • Key Functions: It supports population censuses, family planning programs, and thematic health surveys, and engages in interagency frameworks like UN Development Group (UNDG) and UN Chief Executives Board (CEB).
    • Technical Role: UNFPA also provides research funding, technical assistance, and advocacy support to promote reproductive health and demographic planning.

    Key Population Trends from the UNFPA Report (2025):

    • Data Sources: The report draws on Demographic and Health Surveys (DHS), Multiple Indicator Cluster Surveys (MICS), and projections from the UN Department of Economic and Social Affairs (UN DESA).
    • India’s Population: As of 2025, India’s population is estimated at 146.39 crore (1.4639 billion), making it the most populous country in the world.
    • China’s Population: China’s population now stands at 141.61 crore (1.4161 billion), placing it second.
    • Total Fertility Rate: India’s TFR has declined to 1.9, which is below the replacement level of 2.1, indicating a trend toward population stabilisation.
    • Population Forecast: India’s population is expected to peak at around 170 crores in the coming decades and begin to decline within 40 years.
    • Life Expectancy: As of 2025, the average life expectancy is 71 years for men and 74 years for women.
    • Age Distribution: 68% of Indians are in the working-age group (15–64), while 7% are aged 65 and above, with life expectancy at 71 years (men) and 74 years (women).

    Back2Basics: Total Fertility Rate (TFR)

    • TFR measures the average number of children a woman would have over her reproductive lifetime.
    • A TFR of 2.1 is considered the replacement level, where each generation replaces itself without growing or shrinking.
    • According to the 2021 Sample Registration System by the Registrar General of India, the TFR had already reached 2.0, indicating that India had attained replacement level fertility nationally.

     

    [UPSC 2009] Consider the following statements:

    1. Between Census 1951 and Census 2001, the density of the population of India has increased more than three times.

    2. Between Census 1951 and Census 2001, the annual growth rate (exponential) of the population of India has doubled.

    Which of the statements given abova is/are correct ?

    Options: (a) 1 only (b) 2 only (c) Both 1 and 2 (d) Neither 1 nor 2*

     

  • [10th June 2025] The Hindu Op-ed: Empowering women in agriculture for food security

    PYQ Relevance:

    [UPSC 2024] Distinguish between gender equality, gender equity and women’s empowerment. Why is it important to take gender concerns into account in programme design and implementation?

    Linkage: Women’s empowerment and the critical need to incorporate gender concerns into programme design and implementation. The article extensively discuss how empowering women in agriculture is fundamental to achieving food security. For instance, the United Nations General Assembly declared 2026 as the International Year of the Woman Farmer to recognize, support, and enhance the role of women in ensuring food security, fostering economic prosperity, and promoting sustainability.

     

    Mentor’s Comment:  The United Nations has declared 2026 as the International Year of the Woman Farmer to recognise the important but often overlooked role women play in growing food around the world. Over 100 countries supported this move, which highlights a major issue: while women produce up to 80% of food in developing countries, they are still left out when it comes to owning land. For example, in India, although 80% of working women are in farming, only 14% own land.

     Today’s editorial talks about the problems faced by women farmers, which is an important topic for GS Paper I (women-related issues), GS Paper II (social justice), and GS Paper III (agriculture).

    _

    Let’s learn!

    Why in the News?

    The International Year of the Woman Farmer in 2026 should focus on supporting strong, sustainable farming and ensuring equal rights and opportunities for women in agriculture.

    What challenges do women farmers face in land and credit access?

    • Low Land Ownership Limits Entitlements: Despite forming nearly 80% of the economically active female workforce in agriculture, only 14% of landowners in India are women, and just 8.3% according to NFHS data. Eg: A woman working her family’s farmland may still lack legal ownership, preventing her from claiming government subsidies or schemes like PM-KISAN.
    • Difficulty Accessing Credit: Without land titles, women are often denied collateral-based loans from banks and formal financial institutions. Eg: A woman farmer in rural Bihar cannot access a loan for irrigation equipment because she doesn’t hold a land deed, pushing her to rely on informal moneylenders.
    • Inadequate Access to Financial Technology and Information: Women have limited access to mobile phones and agricultural advisories, which are crucial for credit applications and crop planning. Eg: In Assam, women supported by the ENACT project lacked timely access to climate forecasts, making it harder to plan credit usage for flood-resistant crop seeds.

    Why is 2026 declared the International Year of the Woman Farmer?

    • To Recognise Women’s Vital Role in Agriculture: Women contribute to 60–80% of food production in developing countries and nearly 39% of the agricultural labour force in South Asia.  
    • To Raise Awareness About Structural Challenges: The declaration aims to highlight barriers women face such as limited land ownership, market access, and credit availability. Eg: Only 14% of agricultural landowners in India are women, restricting their ability to access loans and government schemes.
    • To Promote Gender Equality and Empowerment: It seeks to promote gender-transformative agricultural development by encouraging inclusive policies, technology access, and self-help group participation. Eg: The ENACT project in Assam supports women farmers by linking them with agri-experts and providing mobile-based advisories to adapt to climate change.

    What is the ENACT project?

    The ENACT project stands for Enhancing Climate Adaptation of Vulnerable Communities through Nature-based Solutions and Gender-Transformative Approaches. Supported by the World Food Programme (WFP), the Government of Assam, and funded by Norway, it empowers women farmers in Nagaon

    How does the ENACT project help women farmers adapt to climate change?

    • Access to Climate-Resilient Agricultural Information: ENACT provides weekly agricultural and climate advisories through mobile phones, enabling informed decision-making. Eg: Over 300 women farmers in 17 villages of Assam’s Nagaon district receive timely updates on weather and crop planning.
    • Promotion of Flood-Resistant Crop Varieties: The project introduces flood-tolerant rice varieties and promotes livelihood diversification to reduce climate-related risks. Eg: In Roha village, new rice varieties introduced by the project can survive underwater, helping farmers secure better yields during floods.
    • Strengthening Institutional and Technical Support: ENACT facilitates collaboration with local institutions, including agri-departments, universities, and meteorological agencies. Eg: Climate Adaptation Information Centres offer video conferencing tools for expert guidance and community meetings.

    What policies support women farmers in India?

    • Mahila Kisan Sashaktikaran Pariyojana (MKSP): Enhances skills, capacity building, and promotes sustainable agriculture among women farmers. Eg: MKSP supports self-help groups (SHGs) in improving agricultural practices and income generation.
    • Sub-Mission on Agricultural Mechanisation: Provides 50% to 80% subsidies on farm machinery and equipment to reduce drudgery and improve productivity. Eg: Women farmers receive subsidised tools for sowing, weeding, and harvesting, enabling more efficient farm operations.
    • National Food Security Mission (NFSM) – Women’s Component: Allocates 30% of the budget for women farmers in select States and Union Territories to improve food production. Eg: Women beneficiaries receive support in seed distribution, training, and input provision under NFSM.

    How does climate change impact women farmers?

    • Increased Domestic Burden and Agricultural Risk: Climate variability forces women to juggle household responsibilities with unpredictable farming conditions. Eg: In Assam, women like Nirmali Bora Hazarika report increased workload due to erratic weather and flood-prone crops.
    • Limited Access to Climate Information and Resources: Women have less access to weather updates, advisory services, and resilient crop technologies. Eg: Many women farmers lack mobile phones or connectivity to receive timely climate advisories.
    • Greater Vulnerability to Crop Loss and Livelihood Disruptions: Floods, droughts, and extreme weather events hit women-led farms harder due to lack of land rights and insurance. Eg: Without land ownership, women cannot claim compensation or loans to recover from climate-induced losses.

    Way forward: 

    • Enhance Land Rights and Legal Ownership: Governments must promote joint land titles, ensure inheritance rights, and simplify land registration processes for women. Eg: Initiatives like the Digital India Land Records Modernization Programme (DILRMP) can help ensure legal recognition of women’s land ownership.
    • Expand Financial and Technological Access: Strengthen women’s inclusion in formal credit systems, promote mobile-based agricultural advisories, and invest in climate-resilient infrastructure. Eg: Scaling up programs like ENACT can equip women with timely climate information, insurance, and input support.

  • Evidence of Pre-Harappan Human Presence discovered in Rann of Kutch

    Why in the News?

    IIT Gandhinagar researchers have found evidence that humans lived in the Great Rann of Kutch 5,000 years before the Harappans, likely as coastal hunter-gatherers.

    About the Khadir Island Sites:

    • Location: Khadir Island (Khadir Beyt) is in the Great Rann of Kutch, Gujarat, near the well-known Harappan site of Dholavira.
    • Geographic Context: The island is one of 6 that were surrounded by water 5,000–6,000 years ago, due to higher sea levels.
    • Discovery Site: In 2016, researchers discovered archaeological remains near Bambhanka, about 1 km from Dholavira.
    • Site Features: Findings include house complexes, broken potsherds, marine shells, carnelian and agate flakes, and wall remnants made from random rubble masonry.
    • Shell Deposits: A 30–40 cm thick shell deposit was found on a hillock’s western edge, exposed by a pipeline trench. Similar shells were first reported in 1872 by geologist Arthur Beavor Wynne.
    • Shell Species: The Terebralia palustris shell species indicates a mangrove ecosystem once existed here.
    • Other Sites: Additional shell midden sites were discovered at Laungwali, Kunduwari, Ganeshpar, and Janan, mostly located 2–2.5 km from the coast.

    Key Findings:

    • Archaeological Significance:
      • Evidence suggests prehistoric hunter-gatherers lived here 7,000–7,500 years ago, before the Harappans.
      • Carbon dating of 15 shell samples shows they are 5,000–5,500 years older than Harappan remains.
      • A 400–500 year time lag may exist due to shellfish diets, meaning actual dates could be older.
    • Diet and Food Practices:
      • Broken shell middens and discoloured shells suggest people cooked and ate shellfish.
      • The diet likely included plants, fruits, tubers, and nuts, though no plant remains have yet been found.
    • Lifestyle and Settlement:
      • These were mobile hunter-gatherers, not permanent agriculturalists.
      • They likely moved seasonally, occupying each site for part of the year.
    • Tool Use:
      • Stone tools (flakes and cores) made of chert, jasper, chalcedony, basalt, limestone, and quartzite were found.
      • Smaller fragments may have served as arrow tips.
      • Agate, found locally, and other materials suggest trade or resource mobility.
    • Trade and Cultural Links:
      • Non-local tool stones indicate exchange networks.
      • Similarities with tools from Las Bela (Pakistan) and coastal Oman point to long-distance prehistoric connections across the northern Arabian Sea.
    [UPSC 2021] Consider the following pairs:

    Historical place : Well known for

    1. Burzahom : Rock cut shrines

    2. Chandraketugarh :Terracotta art

    3. Ganeshwar : Copper artefacts

    Which of the pairs given above is/are correctly matched?

    Options: (a) 1 only (b) 1 and 2 (c) 3 only (d) 2 and 3*

     

  • Massive eruption of Italy’s Mount Etna

    Why in the News?

    Mount Etna, Europe’s largest active volcano, has erupted sending ash, smoke, and rock fragments several kilometres into the sky.

    Why do Volcanoes Erupt?

    • Magma Formation: Deep within Earth, high temperature and pressure melt rocks into magma.
    • Gas Expansion: Magma contains gases like water vapor, CO₂, and SO₂. As magma rises, the pressure drops, allowing these gases to form bubbles, increasing internal pressure.
    • Crustal Weaknesses: At tectonic boundaries or mantle plumes, cracks and faults in Earth’s crust provide pathways for magma to escape.
    • Eruption Mechanism:
      • As pressure builds, magma is pushed upwards.
      • If blocked, the gas expansion can explode through the crust, ejecting lava, ash, and gases.
    • Signals: If magma flow is suddenly stopped by solid rock, it may create low-frequency seismic waves (pre-eruption tremors).

    Next Census to conclude by March 2027

    About Mount Etna:

    • Location: Situated on the east coast of Sicily, Italy, near the city of Catania.
    • Type: Mount Etna is a stratovolcano (also called a composite volcano), which is formed from layers of hardened lava, volcanic ash, and rocks.
    • Height: It stands at approximately 3,300 meters, making it the tallest volcano in Europe south of the Alps.
    • Recognition: Declared a UNESCO World Heritage Site in 2013, with documented volcanic activity for at least 2,700 years.
    • Eruption Record: Etna is almost constantly active. Notable eruptions have occurred in 1400 B.C., 1669, 2001, 2018, 2021, 2024, and 2025.
    • Volcanic Activity Style: Known for Strombolian and effusive eruptions, with occasional Plinian eruptions (rare and more explosive).

    Reasons Behind the June 2025 Eruption:

    • Nature of Eruption: The eruption is classified as either Strombolian or possibly Plinian, depending on interpretation:
      • Strombolian Eruption: Characterized by moderate explosive bursts, caused by gas bubbles in magma suddenly bursting at the surface.
      • Plinian Eruption: Some volcanologists suggest this classification due to the large ash column that may have reached the stratosphere.
    • Eruption Trigger: The eruption likely began due to pressure buildup from gas within the magma chamber, leading to collapse of the southeast crater and lava flows.
    [UPSC 2024] Consider the following:

    1. Pyroclastic debris

    2. Ash and dust

    3. Nitrogen compounds

    4. Sulphur compounds

    How many of the above are products of volcanic eruptions?

    Options: (a) Only one (b) Only two (c) Only three (d) Only four*