đź’ĄUPSC 2026, 2027 UAP Mentorship November Batch
October 2025
M T W T F S S
 12345
6789101112
13141516171819
20212223242526
2728293031  

Global Geological And Climatic Events

[29th October 2025] The Hindu OpED: Relief, Rehabilitation: India’s east coast and cyclones

PYQ Relevance

[UPSC 2014] Tropical cyclones are largely confined to the South China Sea, Bay of Bengal and Gulf of Mexico. Why?

Linkage: Cyclones are a recurring topic in GS Paper 1 (Geography) and GS Paper 3 (Disaster Management) due to their climatic, socio-economic, and governance relevance. The PYQ links directly to this theme as it explains the geophysical reasons behind the east coast’s high cyclone frequency and sets the context for India’s preparedness and rehabilitation strategies.

Mentor’s Comment

The recurring cyclones on India’s eastern coast highlight not only the country’s growing vulnerability to extreme weather events but also the evolution of its disaster management framework. The recent Cyclone Montha once again tested India’s readiness, reflecting both commendable progress and continuing challenges in disaster response, livelihood security, and post-disaster rehabilitation.

Why in the News

Cyclone Montha, which began intensifying into a severe cyclonic storm over the Bay of Bengal on October 27-28, 2025, has revived memories of devastating cyclones such as the 1977 Andhra cyclone and the 1999 Odisha super cyclone, each claiming nearly 10,000 lives. Although Montha was not as intense, it tested disaster preparedness mechanisms across Andhra Pradesh and Odisha. The event underlines both improved resilience and the persisting socio-economic costs of cyclones in India’s coastal belt, a region that historically faces the brunt of Bay of Bengal storms during October-November.

Introduction

India’s eastern coastline, especially Odisha and Andhra Pradesh, has long been vulnerable to tropical cyclones. Historically, the Bay of Bengal has produced some of the world’s deadliest cyclonic events. While the India Meteorological Department (IMD) and National Disaster Response Force (NDRF) have strengthened forecasting and evacuation systems, the scale of livelihood disruption, property damage, and rural distress continues to make post-cyclone rehabilitation a critical governance concern.

Why is India’s East Coast So Vulnerable to Cyclones?

  1. Geographical Exposure: The Bay of Bengal’s funnel shape and warm waters create conditions for cyclogenesis, making the east coast more cyclone-prone than the west.
  2. Seasonal Concentration: Historically, October-November are peak months, with nine of twelve major cyclones (18th-20th century) recorded during this period.
  3. High Human Impact: The 1977 Andhra and 1999 Odisha cyclones each caused ~10,000 deaths, highlighting the historic vulnerability.

How Prepared Are India’s Coastal States Today?

  1. Institutional Mechanisms: Strengthened Union and State disaster management authorities and IMD’s early warning systems have made large-scale loss of life “a thing of the past.”
  2. Evacuation Efficiency: Nearly 10,000 people evacuated from Andhra’s Kakinada and Konaseema during Cyclone Montha.
  3. Red Alert Response: Prompt deployment of NDRF teams and coordinated district-level action in red-alert zones of southern Odisha.

What Are the Persisting Gaps and Challenges?

  1. Property and Livelihood Loss: Even with reduced fatalities, damage to homes, livestock, and agriculture remains high, affecting underprivileged sections.
  2. Economic Vulnerability: Cyclones disrupt milch animals, draught animals, and poultry, impacting rural incomes and food security.
  3. Infrastructure Fragility: Despite improvements, coastal roads, electricity grids, and communication lines remain highly exposed to storm surges and floods.

What Has Been Learnt from Past Disasters?

  1. Adaptive Governance: Following disasters like Cyclone Gaja (2018), governments have adopted structural and non-structural mitigation measures, including cyclone shelters, embankments, and mangrove restoration.
  2. Skill Enhancement: Continuous upgrading of disaster management knowledge and coordination among states such as Andhra Pradesh, Odisha, and Tamil Nadu.
  3. Community Engagement: Enhanced public awareness and local volunteer networks contribute to faster evacuations.

What Should Be the Way Forward for Relief and Rehabilitation?

  1. Holistic Recovery Approach: Combine immediate relief with long-term livelihood restoration and climate-resilient infrastructure.
  2. Inclusive Policy Execution: Focus on the most vulnerable coastal communities, particularly fishers and small farmers.
  3. Leadership Accountability: Political and administrative leadership must ensure effective implementation of rehabilitation and reconstruction measures post-disaster.

Conclusion

India’s eastern coastline remains a climatic frontier where human resilience is tested year after year. The evolution from reactive relief to proactive risk reduction marks a significant policy success. Yet, the persistence of livelihood loss and infrastructure fragility calls for stronger implementation, community engagement, and leadership accountability. Relief and rehabilitation must now evolve into a model of climate-adaptive, inclusive coastal development.

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

Disasters and Disaster Management – Sendai Framework, Floods, Cyclones, etc.

Setting up an early warning system for the Himalayas poses unique challenges

Introduction

The recent rise in Himalayan disasters highlights the urgent need for early warning systems. The 2024 Down To Earth report shows that between 1900 and 2022, India recorded 687 disasters, with 240 in the Himalayan region alone. Disasters include glacial lake outbursts, flash floods, landslides, wildfires, and earthquakes. What was once a region of five disasters between 1902–1962 now witnesses a major event almost every month.

The combination of climate change, infrastructure expansion, and data inaccessibility has created a perfect storm for recurring disasters.

Why in the News?

In October 2025, Mount Everest’s Tibetan side witnessed a sudden blizzard and heavy snowfall, trapping climbers and villagers, a scene that epitomized the Himalayan fragility. At the same time, floods and landslides in Nepal and Darjeeling killed dozens. These incidents are part of an alarming rise in Himalayan disasters, making early warning systems a national security and developmental priority. Unlike coastal or plain regions, setting up Early Warning Systems (EWS) in the Himalayas poses terrain-specific, logistical, and data-related hurdles, which the government and scientists are now racing to overcome.

Why Are the Himalayas Experiencing So Many Disasters?

  1. Climate Change Impact: Rapid glacier retreat, erratic precipitation, and temperature rise have increased frequency of floods and glacial lake outbursts.
  2. Unregulated Development: Road expansion, hydropower tunnels, and tourism infrastructure disturb fragile slopes.
  3. Population Pressure: Rising habitation and migration to high-altitude zones expose more people to risk.
  4. Data Scarcity: Sparse weather stations and inaccessible terrain reduce real-time monitoring.
  5. Cascading Disasters: Earthquakes trigger landslides that block rivers, leading to floods and dam bursts.

Why Are Early Warning Systems Hard to Establish in the Himalayas?

  1. Topographic Challenge: Remote valleys, deep gorges, and shifting glaciers hinder sensor installation and data transmission.
  2. Energy & Connectivity Gaps: Lack of stable power and internet networks limit continuous monitoring.
  3. Institutional Fragmentation: Multiple agencies, IMD, NDMA, SASE, and state authorities, work in silos.
  4. High Cost of Equipment: Advanced sensors and AI-based models require large funding, which is often project-based, not permanent.
  5. Local Integration Issues: Absence of local awareness and training hinders EWS adoption and response effectiveness.

What Have Been the Major Successes or Promising Models?

  1. Swiss Alps Example: In Switzerland’s Blatten village, an EWS prevented a glacial lake collapse by alerting authorities, saving hundreds of lives.
  2. China’s EWS (2022): The Chinese Academy of Sciences created a Himalayan EWS using satellite and AI-based modeling to forecast flash floods and glacial lake outbursts.
  3. Indian Precedents:
    1. IMD and ISRO collaboration on satellite-based flood forecasting.
    2. Uttarakhand’s Rainfall & Landslide Monitoring Network under NDMA.
    3. AI-based predictive systems being piloted by IIT Roorkee for early landslide alerts.

What Are the Key Steps Needed for India’s Himalayan EWS Framework?

  1. Integration with National Data Systems: Unify IMD, ISRO, NDMA, and local data into a National Himalayan EWS Grid.
  2. Local Capacity Building: Train local panchayats, mountain police, and disaster volunteers in EWS interpretation.
  3. AI & Drone-Based Monitoring: Employ machine learning to analyze terrain shifts and use drones for data relay.
  4. Community Ownership: Encourage “Last-Mile Ownership”, enabling communities to maintain sensors and report anomalies.
  5. Cross-Border Cooperation: Engage with Nepal, Bhutan, and China under the HKH (Hindu Kush Himalaya) framework for data sharing.

Relevant Policy and Institutional Frameworks

  1. Sendai Framework for Disaster Risk Reduction (2015–2030): Calls for risk-informed, multi-hazard early warning systems.
  2. National Disaster Management Plan (2019): Prioritizes mountain-specific disaster risk management.
  3. National Mission for Sustaining the Himalayan Ecosystem (NMSHE): Focuses on climate-resilient planning for mountain ecology.
  4. NITI Aayog Report on Himalayan States (2018): Advocates “mountain-centric” governance and monitoring systems.

Conclusion

Himalayan resilience is India’s climate frontier. Without an integrated and accessible early warning system, each new disaster deepens ecological and social fragility. Establishing a rugged, community-driven, AI-supported Himalayan EWS is not just a scientific necessity, it is a moral and developmental imperative. Science, policy, and local wisdom must converge to safeguard India’s “Water Tower of Asia.”

 

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

India’s diaspora diplomacy and the limits of cultural nationalism

Introduction

The Indian diaspora, among the world’s largest, has long been celebrated for fostering goodwill, investment, and soft power. Recently, however, incidents involving public religious celebrations such as Ganapati immersions and Deepavali fireworks in Western nations have drawn scrutiny. These events have ignited debate over “the limits of acceptable public behaviour” and whether expressions of cultural nationalism abroad risk alienating host nations or complicating India’s diplomacy.

Why in the News

A section of the Indian diaspora in developed countries, notably in Canada, the U.S., and Australia, has faced backlash after cultural events like Ganapati immersions in waterbodies and Diwali fireworks in public spaces. Following incidents such as houses catching fire during Deepavali celebrations in Edmonton, Canada, authorities issued advisories urging restraint. Anti-immigrant and nationalist groups in these countries are exploiting such events to fuel nativist campaigns against people of Indian origin. The issue is significant because it marks a new phase in diaspora visibility, from community pride to potential friction with local norms and foreign policy sensitivities.

India’s Diaspora Diplomacy: Changing Role

  1. Strategic Asset: The diaspora historically served as India’s cultural ambassador, strengthening trade, investment, and soft power links.
  2. Political Sensitivity: Earlier, India urged Persons of Indian Origin (PIOs) to remain apolitical in the domestic politics of their adopted countries, maintaining a careful balance.
  3. Policy Shift: With the rise of Hindutva-oriented nationalism since the 1990s, diaspora activism has gained a new ideological and political tone, extending beyond cultural identity into transnational nationalism.

Why has cultural assertion turned contentious?

  1. Rise of Hindutva Influence:
    • Ideological expansion: The ascent of Narendra Modi in 2014 intensified diaspora engagement rooted in nationalist pride.
    • Global networks: Indian-origin communities began hosting large-scale rallies reflecting Hindutva themes, echoing domestic politics abroad.
  2. Shift from cultural to political nationalism:
    • Earlier Indian nationalism emphasized universal human rights and secular inclusion.
    • Now, diaspora activism mirrors territorial or cultural nationalism, often perceived as exclusive.
  3. Public visibility: Increased religious processions and fireworks are seen as public displays of faith, once private, now overtly political in tone.

How are host nations responding to diaspora assertiveness?

  1. Heightened scrutiny: Countries like the U.S., Canada, and Australia view foreign-linked activism with caution, citing fear of interference in domestic politics.
  2. Parallel with other powers: While India avoids the level of hostility faced by Russia or China, New Delhi’s activities are increasingly monitored.
  3. Examples of scrutiny:
    • In the U.S., foreign influence laws allow diaspora political activity if registered transparently.
    • Far-right and left-leaning figures alike, from Bernie Sanders to Tucker Carlson, have begun debating diaspora-linked influence.

Dual Citizenship Debate and “Nationalist Hype”

  1. Legal context:
    • India does not allow dual citizenship, unlike the U.S.
    • However, the Citizenship (Amendment) Act, 2003 introduced Overseas Citizenship of India (OCI), a form of “dual citizenship in spirit, but not in law.”
  2. Rights and limitations:
    • OCI cardholders enjoy visa-free entry, property and education rights, but cannot vote or hold public office.
    • This arrangement symbolizes India’s partial accommodation of diaspora identity while maintaining constitutional sovereignty.
  3. Diplomatic sensitivity: The growing assertion of OCI holders in political protests abroad sometimes clashes with India’s principle of non-interference and host countries’ domestic politics.

Balancing Pride and Prudence: The Policy Challenge

  1. Tightrope diplomacy: India must encourage diaspora pride without allowing overzealous nationalism to harm bilateral ties.
  2. New geopolitical reality:
    • Rising global nationalism has made foreign societies less tolerant of visible ethnic politics.
    • India’s image as a pluralist democracy depends on diaspora restraint and inclusivity.
  3. Foreign policy implications: The diaspora’s actions now intersect with strategic diplomacy, compelling New Delhi to redefine its soft power outreach with greater nuance.

Conclusion

India’s diaspora diplomacy today walks a fine line between cultural pride and political overreach. While the diaspora remains a pillar of India’s global image, unchecked assertions of religious nationalism can blur boundaries between identity and interference. Sustaining goodwill requires promoting inclusive Indian values abroad, rather than exporting domestic ideological divisions. A balanced diaspora policy, grounded in soft power, pluralism, and mutual respect, will ensure that India’s global citizens remain its greatest strength, not a diplomatic liability.

Value Addition

Bhikhu Parekh on the Indian Diaspora and the Debate on Identity Politics

Bhikhu Parekh, a renowned political theorist and member of the British House of Lords, has been one of the most influential voices in the global debate on diaspora identity, multiculturalism, and nationalism abroad.

Parekh’s Core Ideas

  • Plural Identity: Parekh emphasized that members of the Indian diaspora hold multiple overlapping identities, as Indians, as citizens of their host countries, and as global citizens.
    • He argued that loyalty to India must not conflict with civic responsibility to the host nation.
    • True diaspora strength lies in cultural rootedness combined with civic integration.
  • Critique of Cultural Nationalism Abroad:
    • Parekh warned against transforming cultural pride into exclusive nationalism, stating that religious or ideological exportation risks alienating host societies and undermining India’s democratic image.
    • He urged India to promote a “cosmopolitan nationalism”, celebrating Indian values of pluralism and tolerance abroad rather than majoritarian politics.
  • Cultural Confidence, Not Cultural Aggression:
    • In his writings, particularly during debates on British multiculturalism, Parekh defended the right of immigrants to maintain traditions, but within a framework of mutual respect and civic harmony.
    • He believed that diaspora behaviour becomes diplomatic capital only when it fosters intercultural dialogue, not division.

Indian Diaspora Policy Evolution: From “Pravasi Bharatiya Divas” (2003) to Current Geopolitical Engagement

India’s diaspora policy has evolved from a symbolic celebration of overseas Indians to a strategic instrument of foreign policy.

  • Early 2000s: Institutional Recognition
    • Pravasi Bharatiya Divas (2003) was launched to commemorate Mahatma Gandhi’s return from South Africa, marking the first structured outreach to the diaspora.
    • The event institutionalised diaspora recognition and honoured contributions through the Pravasi Bharatiya Samman Awards.
  • Mid-2000s: Engagement and Identity Building
    • Establishment of the Ministry of Overseas Indian Affairs (MOIA) in 2004 signified a shift from symbolic to policy-based engagement.
    • Introduction of Overseas Citizenship of India (OCI) and Person of Indian Origin (PIO) cards facilitated cultural and economic linkages.
  • 2010s: Economic and Developmental Integration
    • The merger of MOIA with the Ministry of External Affairs (MEA) in 2016 streamlined diaspora diplomacy.
    • Focus shifted to remittances, investments, and knowledge exchange, positioning the diaspora as a development partner.
  • Post-2014 Era: Strategic and Ideological Turn
    • The diaspora became a pillar of India’s soft power and image-building strategy, particularly under Prime Minister Modi’s global outreach (e.g., massive diaspora events in the U.S., U.K., and Australia).
    • India’s foreign policy began viewing the diaspora as a geopolitical asset to influence public opinion and build partnerships in host countries.
  • Current Phase: Geopolitical and Security-Sensitive Diplomacy
    • Diaspora engagement now intersects with strategic diplomacy, requiring balancing national pride with respect for local sensitivities.
    • India emphasizes responsible diaspora conduct, ensuring cultural assertion aligns with mutual respect and diplomatic prudence.

PYQ Relevance

[UPSC 2023] Indian diaspora has scaled new heights in the West. Describe its economic and political benefits for India.

Linkage: The topic is important as it reflects India’s growing global influence through its diaspora-driven economic, cultural, and political networks. The question links to how diaspora activism enhances India’s soft power yet demands careful diplomacy to avoid friction with the host nations.

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

International Space Agencies – Missions and Discoveries

3I/ATLAS: A Possible 7-Billion-Year-Old Interstellar Comet Discovered

Why in the News?

Astronomers discovered 3I/ATLAS, a 7-billion-year-old interstellar comet, using the NASA-funded ATLAS telescope in Chile. It is now nearing its closest approach to the Sun.

About 3I/ATLAS:

  • Discovery: It was detected on July 1, 2025, by the ATLAS telescope in RĂ­o Hurtado, Chile; confirmed interstellar due to its hyperbolic orbit and high speed (57–68 km/s).
  • Significance: It is likely the oldest comet ever observed, possibly 7.6–14 billion years old, older than our 4.5-billion-year-old solar system.
  • Nature: It appeared like an interstellar comet, showing signs of activity, including a coma (cloud of dust/ice) and likely a tail as it nears the Sun.
  • Composition: Rich in water ice and complex organic compounds; has a reddish hue indicating ancient, primordial material.
  • Size: Estimated nucleus diameter is 10–30 km, larger than previous interstellar objects like 1I/Ę»Oumuamua and 2I/Borisov.
  • Trajectory:
    • Closest to Earth: ~270 million km (no threat).
    • Closest to Sun: ~210 million km (Oct 29–30, 2025).
    • Will exit the solar system permanently after perihelion.
  • Scientific Importance:
    • It offers rare opportunity to study materials from another star system.
    • It can reveal clues about the formation of the Milky Way, other solar systems, and early star formation processes.

Back2Basics: ATLAS Telescope

  • ATLAS (Asteroid Terrestrial-impact Last Alert System) is a NASA-funded early warning project for detecting small near-Earth objects (NEOs).
  • It is developed and operated by the University of Hawaii’s Institute for Astronomy.
  • As of 2025, ATLAS operates five telescopes in Hawaii, South Africa, Chile, and the Canary Islands.
  • Each telescope has a 0.5-meter Wright-Schmidt design, a 1-meter focal length, and a 110 MP CCD detector with a 7.4° field of view.
  • The system scans 20,000 square degrees of sky three times per night and provides 1–3 week warnings for asteroids 45–120 meters wide.
  • In addition to asteroids, ATLAS also discovers supernovae, comets, dwarf planets, and variable stars.

What are Interstellar Objects?

  • Overview: Celestial bodies that originate outside the solar system and travel through it on open-ended (hyperbolic) orbits.
  • Key Characteristics:
    • Not gravitationally bound to the Sun.
    • Travel at very high speeds, often unaffected by solar gravity.
    • Do not return once they pass through the inner solar system.
  • Known Interstellar Visitors:
    1. 1I/ʻOumuamua (2017) – Asteroid-like, no coma or tail.
    2. 2I/Borisov (2019) – Active comet with typical cometary features.
  • 3I/ATLAS (2025) – Discussed above.
  • How are they Identified:
    • Hyperbolic trajectory confirmed via orbital calculations.
    • Speed at great distances exceeds gravitational escape velocity.
  • Scientific Value:
    • Provide direct clues about planetary formation beyond our solar system.
    • Can reveal chemical signatures from other star systems.
    • Allow us to study primordial matter from distant parts of the galaxy.
    • Act as natural probes from unknown regions of the Milky Way.

How is 3I/ATLAS different from ordinary Comets?

3I/ATLAS (Interstellar Comet) Ordinary Comet
Origin Came from outside the Solar System Formed inside the Solar System
Path Moves on a hyperbolic path and will leave forever Moves in an elliptical orbit around the Sun
Speed Very fast — about 58 km/s Much slower
Make-up Has more carbon dioxide than water ice (about 8:1) Mostly made of water ice and dust
Tail Has uneven coma and often no visible tail Usually has a bright, long tail
Age About 7 billion years old About 4.6 billion years old
Where It Came From Likely from the Milky Way’s thick disk From the Kuiper Belt or Oort Cloud
Stay in Solar System Just passing through once Keeps returning in regular orbits
Importance Helps study matter from beyond the Solar System Helps study early Solar System formation
[UPSC 2011] What is the difference between asteroids and comets?

1. Asteroids are small rocky planetoids, while comets are formed of frozen gases held together by rocky and metallic material. 2. Asteroids are found mostly between the orbits of Jupiter and Mars, while comets are found mostly between Venus and mercury. 3. Comets show a perceptible glowing tail, while asteroids do not.

Which of the statements given above is/are correct?

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

 

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

JOIN THE COMMUNITY

Join us across Social Media platforms.