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  • ⁠What are Tsunamis? How and where are they formed? What are their consequences? Explain with examples.

    A tsunami is a series of large ocean waves generated by the sudden displacement of a massive volume of water, usually due to undersea earthquakes, volcanic eruptions, landslides, or meteorite impacts.

    Tsunami Formation Process

    Tectonic Plate Movement – Occurs mainly at subduction zones where one plate sinks beneath another.

    Sudden Seafloor Displacement due to vertical uplift or subsidence of seabed

    Energy Transfer to Water Column leading to upward push.

    Wave Propagation in Deep Ocean – Waves travel at high speeds (up to 700-800 km/h) with low height.

    Wave Shoaling Near Coast – As depth decreases, wavelength decreases and height increases

    Consequences of Tsunamis

    Social Consequences

    Mass casualties – Over 2,30,000 deaths in 2004 Indian Ocean tsunami.

    Large-scale displacement – Millions displaced in Indonesia and Sri Lanka (2004).

    Health crises – Water-borne diseases in relief camps.

    Psychological trauma – Long-term PTSD among survivors in Japan (2011).

    Economic Consequences

    Infrastructure destruction – Ports, roads, airports damaged. Eg- Severe infrastructure loss in Fukushima (2011).

    Loss of livelihoods – Fisheries and tourism collapse.

    High reconstruction costs – Japan’s 2011 losses estimated over $200 billion.

    Environmental Consequences

    Coastal ecosystem damage – Eg- Coral reef degradation in Andaman & Nicobar (2004).

    Soil salinization – Agricultural lands turned infertile.

    Secondary disasters. Eg- Fukushima nuclear accident (2011).

    Groundwater Contamination- Saltwater and sewage penetrate freshwater aquifers

    While they cannot be prevented, early warning systems, ecological buffers, and resilient coastal planning can significantly reduce their human and economic toll.

  • How does smart city in India, address the issues of urban poverty and distributive justice?

    The Smart Cities Mission aims to improve quality of life, economic opportunity, and sustainability through technology-enabled and citizen-centric urban governance.

    Role of smart cities in addressing issues of urban poverty and distributive justice

    Inclusive Urban Service Delivery – Area-based development with upgraded basic services in low-income neighbourhoods. Eg- 24×7 water supply in slum clusters using smart metering in Indore

    Affordable Housing – Convergence with PM Awas Yojana-Urban for in-situ redevelopment.

    Technology-Enabled Targeting of Welfare to reduce exclusion and leakage.

    Improved Urban Mobility for the Poor– Smart buses, integrated ticketing, and pedestrian-friendly streets. Eg- Ahmedabad’s BRTS

    Livelihood Generation and Skill Development– Skill hubs, incubation centres, and support for street vendors and MSMEs. Eg- “Smart Vending Zones” in Lucknow

    Digital Inclusion and Access- Citizen service centres, Public Wi-Fi, digital kiosks, enabling access to welfare, certificates, and grievance redressal.

    Participatory Governance through technology. Eg- Namma Bengaluru (Sahaaya 2.0) mobile app for reporting civic grievances in Bangalore

    Safety, Health, and Social Infrastructure – Smart surveillance, lighting, and emergency response improve safety for vulnerable groups.

    Environmental Justice– Eg- Flood mitigation, heat action plans, and green public spaces in dense areas.

    Transparency and Accountability in service delivery and outcomes. Eg- Public dashboards tracking water supply, waste management, and complaints.

    Challenges

    Area-Based Development Bias – Benefits concentrated in selected enclaves.

    Technology-Centric Design risks excluding digitally marginalised groups.

    Policy bias– Eg- Preference for visible projects over social infrastructure.

    Weak Community Participation – Low representation of slum dwellers in planning forums.

    Fragmented Governance – Eg- Overlaps among municipal bodies, SPVs, and parastatals.

    Affordability Concerns – Eg- Fare hikes in public transport affects daily-wage earners.

    Way Forward

    Scaling ‘SAHAYOG’ initiative of Odisha government at Pan India level

    Inclusive urban planning with affordable housing near workplaces

    In-situ slum upgrading instead of peripheral relocation

    With rights-based, inclusive, and people-centric urban policies, cities can instead become spaces of opportunity, dignity, and upward mobility for the urban poor.

    Effects of Globalization

    2018 – ‘Globalisation is generally said to promote cultural homogenisation but due to this cultural specificities appear to be strengthened in Indian society.’ Elucidate.

    Thomas Friedman, (The Lexus and the Olive Tree), defines globalization as the inexorable integration of markets, nation-states, and technologies, making it farther, faster, deeper, and cheaper.

    Globalization Promoting Cultural Homogenization

    McDonaldization- standardization of food habits through fast-food culture

    Linguistic Imperialism- English as the lingua franca of the corporate and digital world.

    Shift from traditional joint families to nuclear units – Western individualistic social structures.

    Consumerist Modernity- Eg- rise of shopping mall culture

    Celebration of Valentine’s Day, Mother’s Day, and Halloween over local seasonal festivals.

    Westernization of Attire- Eg- universalization of jeans and corporate suits

    Standardisation of Education and Knowledge – Eg- Emphasis on STEM, MBAs, and globally recognised certifications.

    Urban Architectural Uniformity – Glass towers and gated communities.

    Digital Culture Uniformity – Eg- Global viral challenges and influencer culture.

    Emphasis on individual rights like Right to Privacy etc

    Globalization Strengthening Cultural Specificities

    Glocalization (Think Global, Act Local) – Eg- McDonald’s menu in India is beef-free, while Domino’s serves Paneer Tikka Pizza.

    Revival of traditional cuisine. Eg- Makhana as “superfood”

    Revival of Regional Languages – Vernacular content reached a 55% share on OTT platforms. Eg- Sacred games or Panchayat show that “hyper-local” stories now have global audiences.

    Global Export of Culture – Eg- International Yoga Day and the global Ayurveda market have moved Indian traditional knowledge to the center of global wellness.

    The “One District One Product” (ODOP) initiative and GI tags for items like Kanchipuram Silk or Banarasi Zardozi have revitalized local artisan economies through e-commerce.

    Religious & Ritualistic Resurgence – Eg- use of social media and drones to broadcast the Kumbh Mela or Ganesh Chaturthi has made these “specificities” more visible and zealously observed

    Diaspora-Led Cultural Preservation – Eg- celebration of Diwali in white house or dandiya in New York’s times square

    “Ethnic” Fashion Boom- Globalization created a market for high-end traditional wear. Eg- FabIndia and designers like Sabyasachi have revitalized handlooms.

    Regional Media Growth as seen in the rise of Tollywood, Mollywood. Eg- global success of RRR or Kantara

    Greater policy focus on conservation of traditional knowledge. Eg- traditional knowledge Digital Library (TKDL)

    Deep-rooted pluralism, regional diversity, and civilisational depth ensure that globalisation in India produces Cultural Hybridization and enriches India’s cultural fabric.

  • Discuss how the changes in shape and sizes of continents and ocean basins of the planet take place due to tectonic movements of the crustal masses.

  • Discuss the salient features of the Harappan architecture.

    The architecture of the Indus Valley Civilization (Harappan Culture) represents one of the earliest examples of sophisticated, utilitarian urban planning in human history.

    Salient Features of Harappan Architecture

    Grid-Based Town Planning

    The Layout: rectangular grid system, where streets and lanes intersected at right angles, cutting the settlement into neat blocks.

    The Arteries: Main avenues were exceptionally wide, running systematically from north-to-south and east-to-west to maximize natural ventilation.

    Dual Layout: Citadel and Lower Town

    The Citadel: Built on a massive mud-brick platform to protect against seasonal flooding. It housed elite administrative or public structures. Eg- Great Bath at Mohenjo-daro and large-scale public Granaries.

    The Lower Town (Residential Zone): Located to the east, this larger, non-elevated expanse housed the common citizens, merchants, and working-class artisans.

    Uniform and Durable Building Materials

    Standardized Bricks: the Harappans pioneered the use of kiln-burnt mud bricks.

    Proportional Consistency: dimensions of the bricks followed a strict mathematical ratio of 4:2:1.

    Residential Architecture and Privacy

    Courtyard-Centric Homes: Private houses varied from small two-room units to multi-story mansions, all constructed around an open central courtyard.

    Privacy Norms: No windows opened directly onto the main thoroughfares. Main entrance doors were strategically placed in side alleys to maintain privacy.

    Advanced Hydraulic and Sanitary Engineering

    The Drainage Grid: Every residential unit was connected to a highly sophisticated, gravity-assisted street drainage network.

    Maintenance Infrastructure: Channels were covered by loose, removable limestone slabs or bricks to facilitate routine desilting and cleaning operations.

    Public Infrastructure Elements

    The Great Bath (Mohenjo-daro): It featured changing rooms, multi-tiered steps, and an incoming clean water well system.

    Dockyard Architecture (Lothal): It features thick, reinforced baked-brick retaining embankments designed to withstand water pressure.

    Harappan architecture reflects a remarkably egalitarian, planned, and civic-minded urban civilisation, whose principles of urban planning remain relevant even today.