APSC Current Affairs: Assam Tribune Notes with MCQs and Answer Writing (21/07/2026)
For APSC CCE and other Assam competitive exam aspirants, staying consistently updated with reliable current affairs is essential for success. This blog provides a well-researched analysis of the most important topics from The Assam Tribune dated 21 July 2026. Each issue has been carefully selected and explained to support both APSC Prelims and Mains preparation, ensuring alignment with the APSC CCE syllabus and the evolving trends of the examination.
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Artificial Floods in Guwahati and Urban Drainage Management
Why in News?
On 20 July 2026, Guwahati experienced 137.8 mm of rainfall within 24 hours (classified as “Very Heavy Rainfall” by IMD and the third-highest July rainfall ever recorded in the city), triggering widespread artificial flooding across major roads, severe waterlogging, and dewatering pump deployments by the Assam Disaster Management Authority (ASDMA).
Introduction
Artificial flooding (urban flooding) is a human-induced disaster caused by inadequate drainage, rapid concrete expansion, and natural water body encroachment rather than river overflow.
Prelims Perspective
- 20 July 2026 Event: 137.8 mm rainfall in 24 hours (Very Heavy Rainfall; 3rd-highest July rainfall recorded in Guwahati).
- IMD Rainfall Classification: Heavy Rain (64.5–115.5 mm), Very Heavy Rain (115.6–204.4 mm), Extremely Heavy Rain (≥204.5 mm).
- Guwahati Topography: Bowl-shaped terrain bounded by hills and the Brahmaputra River, causing rapid surface runoff.
- Key Urban Flood Hotspots: Zoo Road Tiniali, Hatigaon, Beltola, Panjabari, Rukminigaon, Ghoramara, Chandmari, Anil Nagar, Beharbari, Lokhra, Jatia, Kahilipara, Maligaon, Sijubari.
- Critical Wetlands (Beels): Deepor Beel (Ramsar Site since 2002, Important Bird Area, Elephant corridor), Silsako Beel, Borsola Beel, Sarusola Beel.
- Major Urban Rivers/Channels: Brahmaputra, Bharalu, Bahini, Mora Bharalu, Basistha.
- River vs. Artificial Flood: River floods feature slow onset (hours/days) from basin rainfall; artificial floods feature rapid onset (minutes/hours) from local intense rainfall and poor urban drainage.
- Institutional Framework: ASDMA (disaster response), GMC (storm-water drains & solid waste), Water Resources Dept. (flood control & embankments), IMD (weather alerts).
- NDMA Guidelines on Urban Flooding (2010): Key provisions include separate storm-water and sewer networks, GIS-based drainage mapping, urban flood zoning, and rainwater harvesting.
- Sponge City Concept: Urban design using permeable pavements, green roofs, urban forests, and rain gardens to absorb rainfall and recharge groundwater.
- Key Statutory & Policy Frameworks: Disaster Management Act 2005, National Water Policy 2012, Sendai Framework (2015–2030), NAPCC, Assam State Action Plan on Climate Change, AMRUT Mission, Smart Cities Mission.
Mains Perspective
Importance
- Disaster Resilience & Public Health: Mitigates risk to life, property loss, and outbreaks of water-borne diseases during extreme weather.
- Economic Stability: Prevents severe disruption to urban mobility, supply chains, commercial activity, and productivity.
- Climate Adaptation & Urban Sustainability: Ensures long-term urban liveability while preserving delicate eco-sensitive topographies.
Challenges
- Environmental Degradation: Shrinkage of natural wetlands (Deepor/Silsako Beels), encroachment on bahinis (drainage channels), and unregulated hill cutting/siltation.
- Infrastructural Deficits: Outdated drainage capacity, absence of separate storm-water networks, and plastic waste clogging culverts.
- Governance & Climate Multipliers: Jurisdictional overlap among GMC, ASDMA, and WRD combined with climate-change-driven extreme rainfall events.
Government Initiatives
- National Level: NDMA Guidelines (2010), AMRUT Mission, Smart Cities Mission, and Jal Shakti Abhiyan.
- State Level (Assam): Pre-monsoon drain desiltation drives, installation of high-capacity dewatering pumps, and wetland conservation projects.
- Policy Alignment: Integration with the Assam State Action Plan on Climate Change.
Value Addition
- SDG 11: Sustainable Cities and Communities.
- SDG 13: Climate Action.
- Sendai Framework (2015–2030): Priority 4 (enhancing disaster preparedness for effective response and recovery).
Way Forward
- Ecological Restoration: Rejuvenate natural bahinis, strictly enforce wetland protection zones, and halt hill slope encroachments.
- Smart Engineering: Adopt Sponge City principles (permeable surfaces) and construct a comprehensive GIS-based storm-water master plan.
- Governance Reform: Institutionalize a unified Urban Drainage Management Authority alongside community-led waste segregation.
Conclusion
Guwahati must shift from reactive dewatering to a proactive, ecosystem-centric “Sponge City” framework to build climate-resilient urban infrastructure.
SwiftDx: AI-powered Cancer Diagnosis Device Developed under the Leadership of an Assam Student
Why in News?
A 17-year-old student from Delhi Public School, Guwahati, Amay Kashyap Deka, led a global multidisciplinary team to develop SwiftDx, an Artificial Intelligence (AI)-powered intraoperative cancer diagnosis device. The innovation aims to make cancer surgeries faster, more accurate and affordable by assessing tumour margins inside the operation theatre. The device has entered the patent application stage and is undergoing clinical validation through pilot collaborations with hospitals in India and Malaysia.
Introduction
SwiftDx is an innovative, AI-assisted diagnostic device designed to assess tumour margins during surgery, offering a rapid, precise, and highly affordable alternative to traditional laboratory testing.
Prelims Perspective
- Innovator: Amay Kashyap Deka, a 17-year-old student from Delhi Public School, Guwahati, leading a global multidisciplinary team.
- Product: SwiftDx, an AI-powered intraoperative medical device.
- Core Purpose: Provides near real-time assessment of tumour margins (the boundary between removed tissue and healthy tissue) during cancer surgeries.
- Technologies Used: Artificial Intelligence (AI), Machine Learning (ML), Autofluorescence Laser Imaging (capturing natural light emissions from biological tissues), and Vision-Language Models (VLMs).
- Targeted Conventional Method: Replaces the expensive and time-consuming Frozen Section Technique which relies on specialized pathologists.
- Global Recognition: Showcased at the Harvard Systems and Innovations Lab (HSIL) Hackathon and Harvard Boston Health Week Demo Day.
- Current Status: Patent application is under process; clinical validation underway via pilot projects in India and Malaysia.
- Tumour Margin Classifications: Negative/Clear (no cancer at edge), Positive (cancer cells remain), and Close (cancer near the edge).
Mains Perspective
Importance
- Democratises Healthcare: Operates at a fraction of the cost of traditional methods, making high-precision cancer diagnostics accessible in resource-constrained areas.
- Enhances Surgical Outcomes: Rapid, intraoperative margin analysis ensures complete tumour removal, reducing repeat surgeries and preserving healthy tissue.
- Catalyses Youth Innovation: Showcases the strength of India’s STEM education, particularly in Assam, in developing globally competitive, scalable health-tech solutions.
Challenges
- Clinical & Regulatory Hurdles: Requires extensive multi-centre trials and mandatory approvals from bodies like the CDSCO prior to widespread adoption.
- Data Privacy & Algorithmic Bias: Performance hinges on diverse training data; lacks in diversity can skew results, while integrating digital records raises patient privacy concerns.
- Infrastructural Deficits: Successful deployment in rural or district hospitals is limited by the lack of foundational digital infrastructure and trained personnel.
Government Initiatives
- Digital Infrastructure: Fostered by the IndiaAI Mission, Ayushman Bharat Digital Mission (ABDM), and the National Digital Health Mission (NDHM) for seamless health data integration.
- Innovation & Startup Ecosystem: Supported through the Biotechnology Industry Research Assistance Council (BIRAC) and Startup India to incubate health-tech entrepreneurship.
- Policy Frameworks: Guided by the National Strategy for Artificial Intelligence (NITI Aayog) and the National IPR Policy (2016).
Value Addition
- Quote to Use: “Artificial Intelligence will not replace doctors; it will empower doctors to make faster, more informed and more accurate decisions.”
- SDG Alignment: Directly supports SDG 3 (Good Health and Well-being) and SDG 9 (Industry, Innovation and Infrastructure).
Way Forward
- Accelerate Multi-Centre Trials: Establish robust safety, efficacy, and clinical reliability through extensive global pilot testing.
- Establish AI Governance: Implement strict standards for data protection, ethical AI use, and algorithmic transparency in medical diagnostics.
- Promote Collaborative R&D: Foster sustained partnerships across schools, academic institutions, healthcare providers, and the government to scale indigenous medical innovations.
Conclusion
The development of SwiftDx exemplifies a paradigm shift in digital health, demonstrating that youth-driven, AI-integrated innovations from Assam can provide scalable and affordable solutions to complex global healthcare challenges.
Sustainable Plantation Crop Technologies in Northeast India (ICAR–CPCRI)
Why in News?
A one-day stakeholders’ meeting on “Recent Advances in Sustainable Crop Production Technologies in Plantation Crops with Special Reference to Coconut, Arecanut and Cocoa” was organised by the ICAR–Central Plantation Crops Research Institute (ICAR–CPCRI), Research Centre, Kahikuchi (Assam) for the North Eastern States. The meeting aimed to prepare a roadmap for expanding coconut and cocoa cultivation in Northeast India while improving the productivity of coconut, arecanut and cocoa through sustainable crop production technologies. Scientists, State departments, ICAR institutions, the Coconut Development Board (CDB), Krishi Vigyan Kendras (KVKs), Farmer Producer Organisations (FPOs) and progressive farmers participated in the meeting.
Introduction
Plantation agriculture in Northeast India offers immense potential to drive rural prosperity and economic diversification by adopting climate-resilient farming, scientific production technologies, and integrated value chains.
Prelims Perspective
- Organiser & Venue: ICAR–CPCRI Research Centre at Kahikuchi, Assam (Headquarters: Kasaragod, Kerala; established in 1970).
- Focus Crops: Coconut, Arecanut, and Cocoa (a high-value perennial crop suitable for intercropping under coconut and arecanut palms).
- Key Apex Institutions:
- ICAR: Apex agricultural research body under DARE, Ministry of Agriculture & Farmers Welfare.
- Coconut Development Board (CDB): Statutory body headquartered in Kochi, Kerala under the Ministry of Agriculture & Farmers Welfare.
- Krishi Vigyan Kendras (KVKs): District-level agricultural extension centres for technology transfer, training, and demonstrations.
- Farmer Producer Organisations (FPOs): Collectives that enable economies of scale, processing, and higher bargaining power.
- Core Sustainable Technologies: Integrated Nutrient Management (INM), Integrated Pest Management (IPM), drip irrigation, mulching, green manuring, soil testing, and farm mechanisation.
- Regional Suitability (NER): High rainfall, warm and humid climate, abundant water resources, and rich agroforestry potential.
- Key Schemes & Frameworks: National Mission on Sustainable Agriculture (NMSA), Mission for Integrated Development of Horticulture (MIDH), Rashtriya Krishi Vikas Yojana (RKVY), PMFME Scheme, and Formation & Promotion of 10,000 FPOs Scheme.
Mains Perspective
Importance
- Income & Crop Diversification: Provides stable, high-value returns beyond traditional field crops, directly aiding in doubling farmers’ income.
- Rural Industrialisation: Accelerates localized food processing and value addition (e.g., virgin coconut oil, coir products, processed cocoa).
- Ecological & Trade Alignment: Reduces soil erosion through perennial canopy cover while aligning with India’s Act East Policy for regional trade.
Challenges
- Structural Deficits: Small, fragmented landholdings limit economies of scale, coupled with an absence of local processing infrastructure.
- Pest & Climate Vulnerabilities: Heightened susceptibility to diseases (e.g., fruit rot in arecanut) driven by increasing climate variability and erratic rainfall.
- Market & Adoption Gaps: Weak supply chain linkages, price fluctuations, and slow farmer adoption of modern scientific techniques.
Government Initiatives
- Financial & Infrastructure Support: Targeted capital assistance provided through MIDH, NMSA, and RKVY schemes.
- Processing & Aggregation: Value-addition support under PMFME and institutional farmer aggregation via the 10,000 FPOs Scheme.
- R&D & Extension: Laboratory-to-land technology transfer spearheaded by ICAR–CPCRI Kahikuchi, Assam Agricultural University (AAU), and local KVKs.
Value Addition
- Mains Insight: “Sustainable plantation agriculture is not merely about increasing production; it is about integrating productivity, profitability and ecological resilience to secure farmers’ livelihoods in the long term.”
- SDG Alignment: Directly supports SDG 2 (Zero Hunger), SDG 12 (Responsible Consumption & Production), and SDG 13 (Climate Action).
Way Forward
- Promote Intercropping & Resilient Varieties: Distribute high-yielding, disease-resistant cultivars and intercrop cocoa with coconut/arecanut to maximize land-use efficiency.
- Strengthen Value Chains & FPOs: Establish decentralized processing clusters and leverage FPOs for collective procurement and market access.
- Enhance Multi-Agency Coordination: Foster strong integration among ICAR, State Agricultural Universities, State Departments, and private stakeholders for rapid technology dissemination.
Conclusion
By integrating scientific innovation, climate-smart practices, and robust value-chain infrastructure, Northeast India can transform its plantation sector into a resilient engine for sustainable rural development.
Unlocking Resources for Viksit Assam: Scientific Resource Management for Sustainable Development and Viksit Assam 2047
Why in News?
An editorial titled “Unlocking Resources for Viksit Assam” highlights how scientific resource management, sustainable development, innovation, and institutional reforms can unlock Assam’s immense natural resource potential and contribute to the vision of Viksit Assam 2047. It argues that economic growth must be driven by efficient utilisation of the State’s abundant water, forests, minerals, biodiversity, agriculture and renewable energy resources.
Introduction
Assam’s transformation into a resilient economic powerhouse by 2047 hinges on the scientific, sustainable, and technology-driven optimization of its abundant natural resources, shifting the paradigm from mere extraction to high-yield value addition.
Prelims Perspective
- Brahmaputra River System: Originates in Tibet, features over 50 tributaries, and forms the backbone of Assam’s Blue Economy (inland water transport, hydropower, fisheries).
- Assam’s Major Minerals: Abundant reserves of Petroleum, Natural Gas, Coal, and Limestone.
- Strategic Exploration Targets: Emerging focus on Rare Earth Elements (REEs)—a group of 17 metallic elements critical for EVs, wind turbines, semiconductors, and defence electronics.
- Blue Economy (Inland Context): Focuses on riverine resources (Brahmaputra) for aquaculture, river transport, waterfront development, and boat manufacturing, rather than marine assets.
- Technological Tools for Resource Mapping:
- LiDAR (Light Detection and Ranging): Uses laser pulses for high-resolution 3D maps, crucial for flood modelling and terrain analysis.
- GIS (Geographic Information System) & Remote Sensing: For geospatial mapping and digital mineral governance.
- Forest & Biodiversity Assets: Offers emerging opportunities in Carbon Markets (trading carbon credits), Payment for Ecosystem Services (PES), and Nature-based solutions.
Mains Perspective
Importance
- Accelerates GSDP & Industrialisation: Scientific utilisation of resources directly stimulates downstream industries like petrochemicals, food processing, and bamboo manufacturing.
- Catalyses the Act East Policy: Developing the inland Blue Economy and logistics strengthens Assam’s strategic role as India’s commercial gateway to Southeast Asia.
- Ensures Sustainable Regional Growth: Harmonises economic expansion with ecological integrity, generating widespread rural employment while protecting critical biodiversity hotspots.
Challenges
- Environmental Vulnerabilities: Chronic floods, severe riverbank erosion, and climate-induced biodiversity loss heavily disrupt economic planning.
- Structural Economic Bottlenecks: High dependence on the primary sector, low value addition, and severe infrastructure/logistics deficits.
- Institutional & Governance Gaps: Fragmented regulatory oversight, inadequate scientific resource mapping, and slow project implementation stall holistic development.
Government Initiatives
- National Level: PM Gati Shakti, National Logistics Policy, National Green Hydrogen Mission, and the National Geospatial Policy (2022).
- State Level: Advantage Assam, Assam Bio-Ethanol Policy, Assam Industrial Policy, and the Bamboo Mission.
Value Addition
- Mains Quote: “Natural resources become true wealth only when transformed into productive assets through science, innovation, sustainable governance and value addition.”
- SDG Alignment: SDG 6 (Clean Water), SDG 8 (Decent Work & Economic Growth), SDG 9 (Industry & Innovation), SDG 13 (Climate Action), and SDG 15 (Life on Land).
Way Forward
- Data-Driven Resource Governance: Mandate the use of GIS, LiDAR, and AI to create transparent, high-resolution geospatial inventories of all State resources.
- Modernise the Inland Blue Economy: aggressively upgrade Brahmaputra-centric logistics, river tourism, and sustainable aquaculture to attract private investment.
- Catalyse Downstream Value Chains: Pivot from raw material export to establishing local processing hubs for agriculture, petroleum, and minerals, supported by skilled human capital.
Conclusion
Realising the vision of Viksit Assam 2047 requires a decisive shift from passive resource extraction to scientific resource optimization, ensuring economic prosperity remains intrinsically linked to ecological preservation.
APSC Prelims MCQs
Q1. With reference to Urban Flooding in India, consider the following statements:
- Urban flooding primarily occurs due to overflow of major rivers.
- Encroachment of wetlands and natural drainage channels aggravates urban flooding.
- Impervious urban surfaces reduce groundwater infiltration and increase surface runoff.
Which of the statements given above is/are correct?
A. 1 only
B. 2 and 3 only
C. 1 and 3 only
D. 1, 2 and 3
Answer: B
Explanation: Urban flooding is mainly caused by inadequate drainage, encroachment of wetlands and excessive concretisation rather than river overflow. Hence Statement 1 is incorrect, while Statements 2 and 3 are correct.
Q2. Which one of the following correctly represents the India Meteorological Department (IMD) classification of Very Heavy Rainfall?
A. 64.5–115.5 mm
B. 115.6–204.4 mm
C. 204.5–300 mm
D. Above 300 mm
Answer: B
Explanation: IMD classifies rainfall between 115.6 mm and 204.4 mm in 24 hours as Very Heavy Rainfall.
Q3. With reference to the “Sponge City” concept, consider the following statements:
- It promotes infiltration and storage of rainwater through green infrastructure.
- It aims to reduce urban flooding and recharge groundwater.
- It recommends replacing natural wetlands with underground concrete reservoirs.
Which of the statements given above is/are correct?
A. 1 and 2 only
B. 2 only
C. 1 and 3 only
D. 1, 2 and 3
Answer: A
Explanation: Sponge cities conserve and restore wetlands instead of replacing them. Statement 3 is incorrect.
Q4. With reference to Artificial Intelligence (AI) in healthcare, consider the following statements:
- Machine Learning is a subset of Artificial Intelligence.
- Vision-Language Models can analyse both images and textual information.
- Artificial Intelligence completely eliminates the need for medical professionals.
Which of the statements given above is/are correct?
A. 1 only
B. 1 and 2 only
C. 2 and 3 only
D. 1, 2 and 3
Answer: B
Explanation: AI assists healthcare professionals but does not replace clinical judgement. Statement 3 is incorrect.
Q5. SwiftDx, recently seen in the news, is primarily associated with:
A. Detection of groundwater contamination using satellite imagery
B. AI-assisted intraoperative assessment of tumour margins during cancer surgery
C. Drone-based spraying of pesticides in plantation crops
D. Remote sensing of forest fires using LiDAR
Answer: B
Explanation: SwiftDx is an AI-powered device designed for rapid tumour margin assessment during cancer surgery.
Q6. Which one of the following technologies is based on the natural emission of light from biological tissues after absorbing light of a specific wavelength?
A. LiDAR
B. Hyperspectral Imaging
C. Autofluorescence Imaging
D. Radar Interferometry
Answer: C
Explanation: Autofluorescence Imaging detects natural fluorescence emitted by tissues and is increasingly used in cancer diagnostics.
Q7. With reference to ICAR–Central Plantation Crops Research Institute (ICAR–CPCRI), consider the following statements:
- It functions under the Indian Council of Agricultural Research.
- Its headquarters is located at Kasaragod, Kerala.
- It conducts research on coconut, arecanut and cocoa.
Which of the statements given above is/are correct?
A. 1 only
B. 1 and 2 only
C. 2 and 3 only
D. 1, 2 and 3
Answer: D
Explanation: All three statements are correct. ICAR–CPCRI is India’s premier research institute for plantation crops.
Q8. Which of the following institutions is a statutory body under the Ministry of Agriculture & Farmers Welfare?
A. Agricultural Scientists Recruitment Board
B. Coconut Development Board
C. National Bank for Agriculture and Rural Development
D. National Biodiversity Authority
Answer: B
Explanation: The Coconut Development Board (CDB) is a statutory body established under the Coconut Development Board Act, 1979.
Q9. Farmer Producer Organisations (FPOs) are primarily intended to:
- Improve farmers’ bargaining power.
- Facilitate collective marketing and input procurement.
- Promote value addition and processing.
Select the correct answer using the code below.
A. 1 and 2 only
B. 2 and 3 only
C. 1 and 3 only
D. 1, 2 and 3
Answer: D
Explanation: FPOs enable collective action by farmers, improving market access, value addition and economies of scale.
Q10. Consider the following pairs:
| Technology | Primary Application |
| 1. LiDAR | High-resolution terrain mapping |
| 2. GIS | Spatial data analysis |
| 3. Remote Sensing | Collection of information without physical contact |
How many pairs given above are correctly matched?
A. Only one
B. Only two
C. All three
D. None
Answer: C
Explanation: All three technologies are fundamental tools for geospatial planning and natural resource management.
Q11. With reference to the Blue Economy in the context of Assam, consider the following statements:
- It is based entirely on marine resources.
- Inland fisheries and inland water transport are important components.
- Sustainable utilisation of river resources forms an important part of the Blue Economy.
Which of the statements given above is/are correct?
A. 2 and 3 only
B. 1 only
C. 1 and 2 only
D. 1, 2 and 3
Answer: A
Explanation: Assam’s Blue Economy is based on inland water resources, particularly the Brahmaputra system. Statement 1 is incorrect.
Q12. Which of the following are considered Critical Minerals because of their importance in modern technologies?
- Rare Earth Elements (REEs)
- Lithium
- Cobalt
- Graphite
Select the correct answer using the code below.
A. 1 and 2 only
B. 2, 3 and 4 only
C. 1, 2 and 3 only
D. 1, 2, 3 and 4
Answer: D
Explanation: All four are internationally recognised as critical minerals essential for batteries, electric vehicles, renewable energy and advanced electronics.
Q13. Which of the following best explains the concept of a Carbon Market?
A. A market for trading agricultural commodities
B. A mechanism for trading carbon credits to reduce greenhouse gas emissions
C. A government scheme for coal mining
D. A financial institution promoting green loans
Answer: B
Explanation: Carbon markets create economic incentives for emission reduction through trading of carbon credits.
Q14. Consider the following statements regarding groundwater in the Brahmaputra Valley:
- The valley contains highly productive alluvial aquifers.
- Groundwater plays an important role in irrigation and drinking water supply.
- Excessive groundwater extraction without recharge can reduce long-term water security.
Which of the statements given above is/are correct?
A. 1 and 2 only
B. 2 and 3 only
C. 1 and 3 only
D. 1, 2 and 3
Answer: D
Explanation: The Brahmaputra Valley possesses productive alluvial aquifers, but sustainable management is necessary to ensure long-term water security.
Q15. Consider the following statements regarding sustainable natural resource management:
- Value addition to natural resources increases economic returns.
- Scientific resource mapping using GIS and remote sensing improves planning.
- Sustainable development requires balancing economic growth with environmental conservation.
Which of the statements given above is/are correct?
A. 1 and 2 only
B. 2 and 3 only
C. 1 and 3 only
D. 1, 2 and 3
Answer: D
Explanation: Sustainable resource management integrates scientific mapping, value addition, and environmental conservation to achieve long-term economic growth.
APSC Mains Practice Question
📘 GS Mains Model Question (APSC CCE)
📝 Question
Q. “Urban flooding in Indian cities is increasingly becoming a governance and ecological challenge rather than merely a consequence of heavy rainfall.” In the light of the recent artificial floods in Guwahati, examine the causes and suggest measures for developing climate-resilient cities. (15 Marks, 250 Words)
Model Answer
Introduction
According to the National Disaster Management Authority (NDMA), urban flooding is primarily caused by unplanned urbanisation, inadequate drainage infrastructure, and loss of natural water bodies, rather than rainfall alone. The recent artificial flooding in Guwahati despite a single day’s intense rainfall highlights the growing interaction between climate change and poor urban planning.
Causes of Artificial Flooding in Guwahati
1. Unplanned Urbanisation
- Rapid concretisation has reduced natural infiltration.
- Expansion into low-lying flood-prone areas.
2. Encroachment of Wetlands and Natural Drains
- Shrinking wetlands such as Silsako Beel and obstruction of traditional bahinis have reduced natural water storage and drainage.
3. Inadequate Storm-water Drainage
- Existing drainage infrastructure is outdated and unable to handle high-intensity rainfall events.
4. Hill Cutting and Land-use Changes
- Deforestation and unregulated construction on surrounding hills increase runoff and siltation of drains.
5. Climate Change
- Rising frequency of extreme rainfall events overwhelms urban drainage systems.
6. Governance Deficits
- Weak enforcement of land-use regulations.
- Poor inter-agency coordination.
- Inadequate maintenance of drainage networks.
Measures for Climate-resilient Urban Flood Management
- Restore and legally protect wetlands, natural drains and flood retention areas.
- Adopt the Sponge City approach through permeable pavements, green roofs and rain gardens.
- Develop GIS- and LiDAR-based integrated urban drainage master plans.
- Upgrade storm-water drainage systems with climate-resilient design standards.
- Strengthen early warning systems using IMD forecasts and AI-based flood prediction.
- Improve solid waste management to prevent blockage of drains.
- Promote community participation and strict enforcement of urban planning regulations.
Conclusion
Urban flooding represents a challenge of governance, ecological degradation and climate adaptation. A shift from reactive flood control to ecosystem-based urban planning, supported by technology and institutional coordination, is essential to build resilient cities. For Guwahati, conserving wetlands and integrating climate-sensitive infrastructure into urban development will be critical for achieving sustainable and resilient growth in line with SDG 11 (Sustainable Cities and Communities) and SDG 13 (Climate Action).
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