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  • Define the concept of carrying capacity of an ecosystem as relevant to an environment. Explain how understanding this concept is vital while planning for sustainable development of a region.

    Carrying capacity refers to the maximum population size or level of resource use that an ecosystem can support without long-term degradation. Eg- A grassland can sustain only a certain number of grazing animals before vegetation declines.

    Determinants of carrying capacity

    Resource availability (food, water, shelter, space)

    Regeneration rate

    Limiting factors (predators, disease, competition, waste)

    Crucial abiotic elements (climate, soil, sunlight)

    Importance of Carrying Capacity for Sustainable Development Planning

    Livelihood Security (SDG-1) – Maintains sustainable fisheries, forestry and pastoral systems without ecological collapse.

    Intergenerational Equity – Safeguards future resource availability by preventing current over-extraction.

    Preventing Resource Depletion – Ensures development does not exceed natural limits, avoiding overuse of land, water and energy.

    Guiding Land-Use and Urban Planning – Eg- Eco-sensitive zones in Western Ghats restrict high-impact activities.

    Controlling Pollution Load – Determines the capacity of air and water bodies to handle waste – Helps in deciding pollution limits

    Conserving Biodiversity – Prevents ecosystem stress that threatens species survival and habitat stability. Eg- Limiting visitor numbers in Kaziranga and Ladakh

    Enhancing long-term resilience to climate shocks. Eg- Strengthening Mangrove carrying capacity helps prevent coastal erosion and storm surge impacts.

    Encourages balanced regional growth without overburdening ecologically fragile regions. Eg- limits on construction and tourism in himalayan states

    Basis for Sustainable Agriculture – Helps determine cropping patterns, irrigation intensity, and livestock numbers suitable for the region.

    Policy and Environmental Governance – Provides a scientific base for EIAs, zoning and regulatory decisions.

    Disaster Risk Reduction – Reduces exposure to floods, landslides and urban heat islands caused by ecological overload. Eg- Joshimath crisis in Uttarakhand

    Population Regulation – Provides a scientific basis for setting population targets aligned with resource limits.

    Way Forward

    Natural Capital Accounting in Economic Policy to recognise ecosystem services as economic assets.

    Nature-Based Infrastructure Development – Eg- Wetland restoration for flood control and mangrove buffers for coastal protection.

    Urban Green Infrastructure Expansion – Eg- Urban forests and restored lakes for flood moderation and heat mitigation. (Miyawaki Method)

    Payment for Ecosystem Services (PES) – Direct financial rewards to farmers and communities conserving ecological services.

    Channelising corporate funds into habitat restoration and sustainable supply chains.

    Circular Economy Anchored in Biodiversity Regeneration – Eg- Organic textiles, biodegradable packaging and nature-based construction materials.

    Carrying capacity acts as the ecological boundary for growth, ensuring sustainable and intergenerationally just development.

  • How can biotechnology improve the living standards of farmers?

    Karoly Ereky coined the term “Biotechnology” in 1919 to describe the fusion of biological and technological processes aimed at enhancing life on Earth. For agriculture, biotechnology has emerged as a significant boon, elevating crop quality and yield through innovative approaches.

    Role of Biotechnology in Improving Living Standards of Farmers

    Provides disease-free planting material through tissue culture. Eg- Tissue culture banana (G-9 cultivar) increases yields by 30-40%.

    Enhances crop yields through high-yielding and hybrid varieties. Eg- “Swarna Sub-1” flood-tolerant rice and “DRR Dhan 42” drought-tolerant rice.

    Reduces pesticide cost through pest-resistant GM crops. Eg- Bt cotton reduced pesticide use by 40-60%.

    Lowers fertilizer expenses using biofertilisers. Eg- Rhizobium and Azotobacter cuts nitrogen fertilizer requirement in pulses/oilseeds.

    Increases resilience to climate shocks with stress-tolerant seeds. Eg- Drought Tolerant High-Yielding Chickpea Variety “SAATVIK (NC 9)”

    Reduces post-harvest losses using improved shelf-life varieties. Eg- Delayed-ripening tomato (Arka Rakshak) reduces spoilage.

    Nutritional security through biofortified crops. Eg- Iron-rich pearl millet (ICMH 1202).

    Kisan-Kavach: An anti-pesticide suit designed to combat the threat of pesticide-induced toxicity in agricultural settings.

    Enables diversification into high-value crops. Eg- Tissue-culture strawberries (“Chandler”) in Himachal Pradesh.

    Boosts dairy income through microbial feed supplements. Eg- Yeast-based probiotics increase milk yield by 8-12%.

    Enhances fishery productivity using improved seed varieties. Eg- Jayanti Rohu shows 17-20% higher growth rates.

    Generates rural employment – Eg- Tissue culture labs and biofertiliser units run through FPOs in Telangana.

    Supports women-led microenterprises – Eg- SHGs in Tamil Nadu producing vermicompost.

    Challenges

    Regulatory Complexity: Approval processes for GMOs and biotech tools are lengthy. Eg- delay in approval of GM Mustard (DMH-11)

    Public skepticism about GMOs. Eg- opposition to Bt Brinjal.

    Environmental and Ethical Concerns: Gene flow to non-target species, biodiversity risks, and ethical considerations around gene editing. Eg- concerns over “playing God”

    Access and Equity: High development costs and IP protections limit access for smallholders.

    Health concerns – Eg- StarLink corn incident (2000) – animal-feed-only GM corn entered the human food chain.

    Limited private sector participation – Eg- Policies such as the Cotton Seed Price Control Order (2015) and mandatory tech transfer provisions have discouraged private R&D

    Illegal Cultivation and biosafety risks – Eg- HT-Bt cotton is illegally cultivated on up to 25% of cotton acreage in India

    Declining Cotton Productivity – Yields have fallen from 566 kg/ha (2013-14) to 436 kg/ha (2023-24), far below China and Brazil’s 1,800-1,900 kg/ha.

    Rising Import Dependence – India has shifted from net exporter to net importer, with cotton imports reaching $0.4 billion in 2024-25.

    Undermining seed sovereignty due to intellectual property rights. Eg – Monsanto-Mahyco Bt cotton disputes

    Way Forward

    Science-Based Regulation- Ensure transparent field trials, publicly accessible data and independent monitoring,

    Promote public-private partnerships in biotech research and support region-specific GM crops

    Implement robust GM labeling and enforce strict action against illegal cultivation and counterfeit seeds.

    Prioritise biofortified GM crops such as Golden Rice, iron-rich pulses, and zinc-rich wheat to combat micronutrient deficiencies

    Effective implementation of BioE3 mission can help realise Vajpayee’s vision of Biotech for Bharat – “What IT is for India, BT is for Bharat”

  • How is the government of India protecting traditional knowledge of medicine from patenting by pharmaceutical companies?

    India’s traditional medicinal knowledge includes thousands of formulations and approximately 45,000 plant species, but faces biopiracy threats from multinational companies patenting indigenous resources without consent or compensation.

    Government Initiatives to Protect Traditional Knowledge

    Traditional Knowledge Digital Library (TKDL):

    Translates ancient medicinal texts from Sanskrit, Urdu, Tamil, Persian and other languages into English, French, German, Spanish, and Japanese for global patent examiners.

    Contains over 4.48 lakh formulations, including Ayurveda, Unani, Siddha, Sowa Rigpa, and Yoga knowledge systems.

    CSIR-TKDL actively files pre-grant oppositions and third-party observations; 283 patent applications were refused, amended, or withdrawn using TKDL evidence.

    The Biological Diversity Act, 2002: Mandates that any foreign individual or commercial entity seeking to use India’s biological resources or traditional knowledge must obtain prior approval from NBA.

    National Biodiversity Authority: NBA is a statutory body implementing the Biological Diversity Act, 2002 to protect India’s biological resources and traditional knowledge.

    People’s Biodiversity Register (PBR): Administered by the NBA, PBR serves as a formal tool for recording and maintaining comprehensive localized data on biological resources and their medicinal uses.

    Access and Benefit Sharing (ABS) agreements:

    Companies using Indian bio-resources must share royalties or benefits with the National Biodiversity Authority.

    These funds support local Biodiversity Management Committees and tribal communities.

    The Patents Act, 1970:

    States that an invention which is traditional knowledge, or an aggregation or duplication of known properties of traditionally known components, is not patentable.

    Mandates disclosure of the source and geographical origin of biological materials used in patents, with details shared with the NBA.

    Protection of Plant Varieties and Farmers’ Rights (PPV&FR) Act, 2001: Protects the rights of local communities and farmers over their traditional crop and medicinal plant varieties.

    By safeguarding indigenous medical heritage through the NBA and TKDL, India directly advances SDG 3 (Good Health and Well-being) and SDG 15 (Life on Land) while protecting local community rights.

  • What is the CyberDome Project? Explain how it can be useful in controlling internet crimes in India

  • The banning of ‘Jamaat-e – islaami’ in Jammu and Kashmir brought into focus the role of over-ground workers (OGWs) in assisting terrorist organizations. Examine the role played by OGWs in assisting terrorist organizations in insurgency affected areas. Discuss measures to neutralize the influence of OGWs.

    Recently, MHA has declared ‘Jamaat-e-Islami Jammu Kashmir (JeI)’ as an ‘Unlawful Association’ under Section 3 of the Unlawful Activities (Prevention) Act, 1967.

    Role played by OGWs

    Intelligence Gathering – provide real-time information on troop movement, patrol timings and security vulnerabilities.

    Logistical Support – arrange shelter, vehicles, food, medical aid and safe houses for militants to evade detection.

    Radicalisation and Recruitment through religious networks, student groups and social media.

    Terror Financing – raise funds locally, manage extortion, run front organisations and facilitate hawala transfers.

    Facilitating Arms Movement – OGWs act as couriers, store arms, and help smuggle weapons across borders or LoC. Eg- collecting drone-dropped arms.

    Information Warfare – They generate pro-terror content, circulate videos and organise protests to delegitimise the state.

    Maintaining Militant-Local Community Linkages- create public sympathy for militants, and organise funerals or protests to build support. Eg- funeral of Burhan Wani

    Measures to Neutralise the Influence of OGWs

    Intelligence and Policing Measures

    Integrated Intelligence Grid (IIG) – Real-time coordination between police, IB, NIA and security forces to identify OGW networks.

    Use of Technology for Profiling – AI-based monitoring of suspicious financial transactions, travel patterns and digital communication.

    Strengthening Local Police and Community Intelligence – Eg- Village Defence Groups in Rajouri-Poonch.

    Tightening Border Surveillance – Use of drones, sensors, and night-vision to check infiltration and OGW courier routes.

    Legal and Institutional Measures

    Action through UAPA & NIA Act – Freezing bank accounts and shutting down front organisations.

    Regulating NGOs, Religious Networks – Eg- FCRA audits of charity organisations

    Community and Preventive Measures

    De-radicalisation and Counselling of youth

    Heart and mind strategy – Eg- Operation Sadbhavana (Goodwill) of Indian Army

    Employment and Skill Development to mainstream youth. Eg- Udaan Scheme

    OGWs are the backbone of insurgency. A multi-layered approach is needed to break the support ecosystem of terrorism.

  • Vulnerability is an essential element for defining disaster impacts and its threat to people. How and in what ways can vulnerability to disasters be characterized? Discuss different types of vulnerability with reference to disasters.

    As per UNDRR, vulnerability refers to the conditions determined by physical, social, economic and environmental factors or processes which increase the susceptibility of an individual, a community, assets or systems to the impacts of hazards.

    Vulnerability can be characterized as follow

    Exposure to Hazard – Settlements on riverbanks or seismic zones are more vulnerable. Eg- Joshimath (Uttarakhand)

    Adaptive or Coping Capacity – Ability to anticipate, respond, absorb and recover from a disaster. Eg- Access to savings, insurance, early warning systems.

    Socio-economic Conditions – Poverty, marginalisation and inequity increase susceptibility to harm. Eg- Disaster induced migration

    Governance and Institutional Readiness– Eg- Weak building regulation increases earthquake vulnerability.

    Environmental Degradation increases hazard impact. Eg- ‘Day Zero’ in Chennai due to wetland encroachment.

    Social Networks and Support Systems: – Communities with strong social cohesion, community organizations, and support networks are more resilient to respond to and recover from disasters.

    Health status and access to healthcare services influence vulnerability – Eg- Elderly and Children are more vulnerable to post disaster illness

    Types of Vulnerability with Reference to Disasters

    Physical Vulnerability – Related to infrastructure, buildings, land use, and physical exposure. Eg- houses in Zone V are highly earthquake-vulnerable.

    Social Vulnerability – Eg- Women in rehabilitation camps face violence and trafficking

    Economic Vulnerability – Lack of income stability, livelihood diversity, and financial buffers. Eg- Fisherfolk losing boats in cyclones.

    Environmental Vulnerability- Eg- Loss of mangroves in Sundarbans increases storm-surge impacts.

    Institutional Vulnerability – Weak governance, poor enforcement of safety norms, lack of coordination.

    Technological Vulnerability – Risks arising from industrial, nuclear, or infrastructural failures. Eg- Bhopal gas tragedy.

    Geographic Vulnerability – Eg- Himalayan towns exposed to landslides and GLOFs.

    Mapping vulnerabilities, enforcing inclusive governance, and capacity building at grassroot are essential for disaster resilience.

  • Coastal sand mining, whether legal or illegal, poses one of the biggest threats to our environment. Analyse the impact of sand mining along the Indian coasts, citing specific examples.

    Sand mining refers to the extraction of sand from beaches, river mouths, dunes and seabeds for construction and land reclamation.

    Impact of sand mining

    Environmental Impacts

    Accelerated Coastal Erosion – Removal of sand weakens natural barriers, causing shoreline retreat. Eg – Alappuzha (Kerala).

    Habitat Destruction – Disturbs nesting sites and coastal biodiversity. Eg – Degradation of Olive Ridley turtle nesting beaches in Odisha.

    Saline Intrusion & Groundwater Contamination – Eg – Tuticorin (Tamil Nadu) recorded rising salinity in wells.

    Loss of Mangroves – Destabilised soil and altered hydrology harm protective ecosystems. Eg – Vegetation thinning in parts of the Sunderbans.

    Economic Impacts

    Damage to Infrastructure – Roads, bridges and coastal installations become unstable due to subsidence. Eg – Road collapse incidents in Uttar Kannada (Karnataka).

    Decline in Tourism Revenue – Eroded and degraded beaches reduce tourist inflow.

    Livelihood Loss for Fishing Communities – Altered seabed and turbidity reduce fish catch and destroy spawning grounds.

    Social Impacts

    Disaster induced displacement of coastal communities due to increased vulnerability

    Health Risks from Contaminated Water – Saline intrusion affects drinking water quality.

    Increased and sedimentation in rivers and coastal areas due to depletion of sand from river beds

    Political & Governance Impacts

    Rise of Illegal Sand Mining Networks – Criminalisation of mining fuels corruption. Eg – Sand mafias in Tamil Nadu, Andhra Pradesh.

    Threats to Officials – Violent attacks on officers during enforcement drives.

    Way Forward

    Strengthen Regulatory Enforcement

    Tighten monitoring of CRZ norms

    GPS-tracked transport permits

    Eg – Kerala’s drone-based monitoring model.

    Promote Sustainable Alternatives – Eg- M-sand

    Community-Based Coastal Stewardship– Eg – Odisha’s community patrolling linked to turtle conservation.

    Ecological Restoration of Mined Coasts– Eg – Puducherry’s beach nourishment project.

    Improve Inter-State Coordination – joint task forces to curb cross-border sand smuggling.

    Integrate Sediment Budgeting in Coastal Planning to ensure river-to-coast sediment flow is maintained.

    Ensuring sustainable extraction is essential to balance developmental needs with long-term coastal resilience

  • What is India’s plan to have its own space station and how will it benefit our space programme?

    A space station is a habitable, long-term orbital laboratory for scientific research. India’s plan to build the Bharatiya Antariksha Station (BAS) represents a pivotal shift from short-duration missions to a sustained human presence in space.

    India’s Plan for Bharatiya Antariksha Station (BAS)

    The BAS is envisioned as a modular space station positioned in Low Earth Orbit (LEO) at an altitude of approximately 400-450 km.

    Modular Architecture: The station will consist of five modules launched in phases. The station’s total weight is estimated at 52 tonnes upon completion.

    Timeline:

    2028: Target for the launch of the first module, BAS-01 (Base Module).

    2028-2035: Sequential launch and docking of the remaining four modules.

    2035: Targeted year for the station to become fully operational.

    Technical Specifications: It is designed to accommodate a nominal crew of 3 to 4 astronauts for durations of 3 to 6 months, with a maximum capacity of 6 during crew handovers.

    The plan involves mastering Rendezvous and Docking (SpaDeX), advanced Environmental Control and Life Support Systems (ECLSS), and robotic arm operations.

    Benefits to India’s Space Programme

    Scientific

    Microgravity Research Platform: It provides a permanent laboratory for long-term experiments in biotechnology, materials science, and pharmaceuticals that cannot be replicated on Earth.

    Advanced Life Support Systems (ECLSS): Mastering the recycling of air and water is essential for sustaining life; BAS serves as the ultimate testbed for these “closed-loop” technologies.

    Technological

    Rendezvous and Docking Maturity: Successful operation requires perfecting the SpaDeX (Space Docking Experiment) technology, a critical skill for any future lunar or interplanetary assembly.

    Gateway to the Moon (2040): The station acts as a training ground for the Bharatiya Antariksha Yatri, preparing them for the planned 2040 Lunar Landing.

    In-Orbit Refueling and Servicing: BAS will pioneer technologies to refuel satellites in orbit, potentially extending the life of multi-billion dollar assets and reducing space debris.

    International

    Strategic Autonomy: Having an independent station ensures India is not dependent on foreign platforms for sensitive research or strategic orbital maneuvers.

    Geopolitical Leadership: It cements India’s role as a leader in the Global South, offering a potential platform for collaborative missions with nations lacking independent space access.

    Economic

    8. Income for ISRO by leasing out experiments, taking astronauts of other countries.

    9. Boosting space industry in India.

    10. Promotion of space tourism in India.

    The Bharatiya Antariksha Station is the cornerstone of India’s “Space Vision 2047.”

  • How was India benefited from the contributions of Sir M.Visvesvaraya and Dr. M. S. Swaminathan in the fields of water engineering and agricultural science respectively?

    India’s foodgrains production has surged from 50.8 million tons in 1950-51 to over 357 million tons in 2025. Sir Visvesvaraya and Dr. Swaminathan played a prominent role in this transformation.

    Contribution of Sir M. Visvesvaraya in Water Engineering

    Modernisation of Irrigation Systems – Eg- Invented the automatic weir water floodgates, first installed at KRS Dam

    Major Dams and Multipurpose Projects – Designed the Krishna Raja Sagara (KRS) Dam, which irrigated 1.2 lakh+ hectares in Mandya region

    Developed water supply and drainage systems for Hyderabad, Pune, Nagpur, Belagavi

    Promotion of Scientific Water Management – Pioneered ideas like integrated river valley development

    Advocated planned economic development through irrigation, power generation, and industrialisation. Eg- Mysore Iron & Steel Works.

    International Projects– worked on water supply and drainage systems in the British Colony of Aden (now Yemen)

    His Mysore State Flood Report in 1909 provided crucial insights on flood management

    Contributions of Dr. M. S. Swaminathan in Agricultural Science

    Chaired the National Commission on Farmers and recommended policies like the MSP formula (C2 + 50%).

    Father of the Green Revolution – Introduced high-yielding varieties of wheat and rice. Eg- “Swarna” rice variety

    Achieving Food Self-Sufficiency – foodgrain production rose from ~72 million tonnes (1965) to over 130 million tonnes (1980s), ending “ship-to-mouth” dependence.

    Promotion of Sustainable and Climate-Resilient Agriculture – Advocated genetic conservation, bio-fortification, and evergreen revolution principles

    He played an instrumental role in developing the Protection of Plant Varieties and Farmers’ Rights Act of 2001.

    Institutional Building

    ICAR modernisation – Director-General from 1972 to 1979.

    Setting up MS Swaminathan Research Foundation (MSSRF)

    Promoting biotechnology. Eg- research on cryogenetics in potato crops.

    Together, they shaped India’s progress in water management, agriculture, and national development.

    Agriculture Technology

  • What are the reformative steps taken by the Government to make food grain distribution system more effective?

    India’s Public Distribution System is the world’s largest food transfer programme and India’s most far-reaching social safety net, accounting for around 50% of the overall social assistance budget.

    Objectives of PDS

    Food security

    Stabilise foodgrain prices

    Prevent hunger and malnutrition

    Safety net during emergencies

    Reformative Steps to Strengthen India’s Food-Grain Distribution System

    National Food Security Act, 2013 – Expanded the PDS coverage to 67% of population

    End-to-End Digitalisation of PDS

    All 20.4 Cr household ration cards digitised

    Aadhaar seeding – over 47 million bogus ration cards removed (2013-21).

    Implementation of Warehouse Inventory Network and Governing System (WINGS) application to automate tagging of mills

    5.33 lakh e-PoS devices installed in all Fair Price Shops.

    One Nation One Ration Card (ONORC) – Ensures nationwide portability of PDS benefits.

    Doorstep Delivery of Foodgrains in Punjab, Haryana, Delhi etc.

    Strengthening Storage & Supply Chain

    GPS-based tracking of trucks. Eg- Chhatisgarh

    Expansion of warehouses under PEG Scheme (Private Entrepreneurs Guarantee).

    Direct Benefit Transfer (DBT) in Chandigarh, Puducherry, Dadra & Nagar Haveli.

    Decentralised Procurement in states like Punjab, Haryana, MP, Chhattisgarh, Telangana.

    Nutritional Improvements in PDS

    Introduction of fortified rice under NFSA, ICDS and PM-POSHAN.

    Some states (Tamil Nadu, Odisha) supply pulses, millets, oil and eggs through PDS.

    However, despite these steps there are few challenges

    As per study by Crisil using a ‘thali index’, up to 50% of rural and 20% of urban Indians cannot afford two balanced meals a day

    Even with PDS support, food deprivation remained 40% in rural and 10% in urban areas

    Weak supply chain management – Storage Losses due to poor warehousing and handling. Eg- 40% of the food wasted (1.5 lakh crore or 1% of the GDP)

    Open ended procurement leads to overflowing of FCI godowns

    Diversion – Eg- 28% of allocated foodgrains fail to reach beneficiaries as per HCES 2022-23.

    Inclusion and exclusion errors due to faulty beneficiary identification.

    Corruption and ghost beneficiaries – Over 47 million bogus ration cards cancelled between 2013-2021

    Corruption at Fair Price Shops (FPS) – Issues of under-weighing, overcharging etc

    Fiscal Burden – Food subsidy budget @ 2.1 lakh cr in 2025-26

    Way Forward

    Shanta Kumar Committee Recommendations on Revamping of PDS

    Direct Procurement by States

    Private Sector Involvement in procurement, storage, and distribution

    Diversify the food basket – Include millets, pulses, edible oil and iodised salt for nutritional security.

    Strengthen grievance redressal – Set up toll-free helplines, social audits and citizen charters at FPS level.

    Community monitoring – Involve self-help groups, local bodies and civil society in supervision.

    Universal PDS similar to Tamil Nadu’s model.

    Optimise buffer stock norms to reduce food grain wastage.

    The PDS remains a vital tool for India’s food security and realise SDG 1,2,3,and 12