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GS Paper: GS3-13.Infrastructure: Energy, Ports, Roads, Airports, Railways etc:

  • Zojila Tunnel: The challenge of digging through the Himalays

    Why in the news?

    The near-completion breakthrough of the Zojila Tunnel, being constructed at an altitude of 11,578 feet, marks one of India’s most ambitious and technically demanding infrastructure achievements.

    What is the Zojila Tunnel?

    1. The Zojila Tunnel is a 13-km bi-directional road tunnel being constructed beneath the Zojila Pass in the Himalayas. 
    2. Located at an elevation of 11,578 feet, it aims to provide all-weather connectivity between Kashmir Valley and Ladakh. 
    3. The project is among India’s most challenging infrastructure undertakings due to the complex geological and environmental conditions associated with Himalayan terrain.

     How does Himalayan geology make tunnel construction exceptionally difficult?

    1. Young Fold Mountains: The Himalayas are geologically young and remain tectonically active, resulting in unstable rock formations.
    2. Variable Rock Strata: Rock composition can change within a few metres, creating unpredictable excavation conditions.
    3. Structural Weaknesses: Rock formations contain fractures, cracks, fault zones, and shear zones that reduce stability.
    4. Loose Geological Material: Engineers encounter loose rocks, boulders, and weak strata requiring different support systems.
    5. Ocean-Floor Origin: Himalayan rocks originated from uplifted seabed deposits, producing highly heterogeneous geological structures.
    FeatureYoung HimalayasOld Mountains (e.g., Aravallis)
    StabilityLowerHigher
    Tectonic ActivityActiveRelatively Stable
    Tunneling RiskHighLower
    Rock UniformityPoorBetter

    Why do altitude and climatic conditions increase construction risks?

    1. High Elevation: Construction occurs at approximately 11,578 feet, reducing worker efficiency and equipment performance.
    2. Extreme Cold: Temperatures may fall to -30°C.
    3. Harsh Winters: Severe weather limits construction windows.
    4. Avalanche Threats: Snow avalanches create risks for workers and infrastructure.
    5. Operational Challenges: Combustion engines and heavy machinery experience reduced efficiency at high altitude.

    Why is water ingress one of the biggest engineering challenges in the Himalayas?

    1. Stored Water Reservoirs: Mountains contain large volumes of groundwater trapped within rock layers.
    2. Snowmelt Contribution: Melting snow continuously adds to underground water systems.
    3. Water Ingress: Excavation frequently intersects water-bearing zones.
    4. Hydrostatic Pressure: Excessive water pressure can destabilize tunnel structures.
    5. Flooding Risk: Uncontrolled seepage may trigger tunnel flooding and structural failures.

    Striking Observation

    1. Massive Water Storage: Geological assessments indicate that Himalayan mountains may contain water volumes comparable to an “ocean’s worth” of stored water.

    Why are shear zones and tectonic stresses particularly dangerous?

    1. Shear Zones: High-strain zones create instability during excavation.
    2. Rock Deformation: Tectonic pressure continuously alters stress distribution.
    3. Collapse Risk: Excavation may trigger localized failures in weak zones.
    4. Dynamic Conditions: Geological conditions often change unexpectedly during drilling.
    5. Engineering Uncertainty: Tunnel design frequently requires real-time modification.

    What safety measures were adopted during the Zojila Tunnel project?

    1. Ventilation Infrastructure: Three shafts were constructed along the tunnel length.
    2. Emergency Response: Shafts provide access for rescue and evacuation operations.
    3. Deep Access Shafts: The first shaft is 474.3 m deep, making it the deepest in India.
    4. Additional Shafts: The second shaft is 367.5 m deep, while the third shaft is 213.5 m deep.
    5. Operational Safety: Ventilation systems ensure worker safety during construction and future operation.

    How does the New Austrian Tunnelling Method (NATM) help overcome Himalayan challenges?

    The New Austrian Tunneling Method (NATM) is a modern, observational tunneling approach that reinforces the surrounding rock or soil, allowing it to deform slightly and become part of the tunnel’s primary load-bearing structure.

    1. Selective Excavation: Facilitates controlled blasting based on rock conditions.
    2. Sequential Construction: Excavation proceeds in stages rather than full-face excavation.
    3. Top-Heading Method: Upper tunnel section is excavated first, followed by the lower section.
    4. Adaptive Design: Allows modifications according to changing geological conditions.
    5. Risk Reduction: Enhances stability in weak and variable rock formations.

    About the NATM

    Principle: “The surrounding rock mass itself becomes part of the support system.”

    Key Components

    1. Shotcrete: Sprayed concrete for immediate stabilization.
    2. Rock Bolts: Reinforce fractured rock.
    3. Monitoring Systems: Continuous assessment of rock behaviour.
    4. Flexible Design: Engineering response adjusted to site conditions.

    How are water and structural stability managed during excavation?

    1. Drainage Pipes: Facilitate controlled water discharge.
    2. Pressure Management: Prevents buildup of hydrostatic pressure.
    3. Rock Bolting: Stabilizes fractured rock masses.
    4. Shotcrete Lining: Binds loose rock surfaces.
    5. Alignment Modification: Tunnel route can be altered to bypass weak geological sections.
    6. Site-Specific Design: Tunnel shape and support configuration vary according to local conditions.

    Why does the Zojila Tunnel have strategic significance beyond engineering?

    1. All-Weather Connectivity: Reduces dependence on the seasonally closed Zojila Pass.
    2. Regional Integration: Strengthens connectivity between Kashmir and Ladakh.
    3. Defence Logistics: Improves movement of military personnel and supplies.
    4. Economic Development: Facilitates tourism, trade, and local livelihoods.
    5. National Infrastructure Capacity: Demonstrates India’s capability to execute mega-projects in difficult terrain.

    Conclusion

    The Zojila Tunnel demonstrates the intersection of strategic infrastructure, geological science, and engineering innovation in one of the world’s most challenging mountain environments. Its construction highlights the necessity of adaptive engineering, advanced tunnelling techniques, and robust safety systems for infrastructure development in the Himalayas. The project serves as a model for future high-altitude infrastructure while strengthening regional connectivity, national security, and economic integration.

    Value Addition

    Major Himalayan Infrastructure Projects

    1. Zojila Tunnel: Kashmir-Ladakh connectivity.
    2. Atal Tunnel: Rohtang Pass, Himachal Pradesh.
    3. Sela Tunnel: Arunachal Pradesh.
    4. Z-Morh Tunnel: Sonamarg connectivity.

    PYQ Relevance

    [UPSC 2016] The Himalayas are highly prone to landslides. Discuss the causes and suggest suitable measures of mitigation.

    Linkage: The question examines the geological fragility, instability, and hazard-prone nature of the Himalayan mountain system. The Zojila Tunnel highlights how young Himalayan geology creates major engineering and disaster-management challenges during infrastructure construction.

  • Small Hydro Power (SHP) Development Scheme

    Why in the news?

    The Ministry of New and Renewable Energy (MNRE) organised a National Workshop and launched the Small Hydro Power Development Scheme Guidelines (FY 2026-27 to FY 2030-31) to accelerate the development of the SHP sector in India.

    About the Small Hydro Power Development Scheme

    • Implementing Ministry: MNRE
    • Scheme Period: FY 2026-27 to FY 2030-31
    • Objective:
      • Revival and expansion of the Small Hydro Power sector.
      • Harness untapped hydro potential.
      • Promote renewable energy diversification.
    • Capacity Target: Installation of approximately 1,500 MW of new SHP capacity.
    • Total allocation: ₹2,584.60 crore
    • In India, Small Hydro Power Projects are hydroelectric projects with an installed capacity of up to 25 MW
    • These projects generally involve:
      • Run-of-the-river systems.
      • Minimal reservoir requirements.
      • Lower environmental impacts compared to large dams.

    [2024] Recently, the term “pumped-storage hydropower” is actually and appropriately discussed in the context of which one of the following?

    [A] Irrigation of terraced crop fields

    [B] Lift irrigation of cereal crops

    [C] Long duration energy storage

    [D] Rainwater harvesting system

  • Infrastructure at the Core of India’s Development (PIB)

    Why in the news?

    The Government highlighted major infrastructure achievements over the past 12 years across transport, logistics, water, housing, energy, and digital sectors, emphasizing their role in achieving Viksit Bharat 2047.

    1. Railways

    • Railway budgetary support increased from ₹32,000 crore (2014-15) to ₹2.78 lakh crore (2026-27).
    • Railway electrification:
      • About 20% before 2014
      • 99.6% by March 2026
      • 69,873 route km electrified.
    • Vande Bharat trains: 162 services operational (April 2026).
    • Vande Bharat Sleeper: launched in January 2026.
    • Amrit Bharat Express: 60 services operational.
    • Mumbai-Ahmedabad High-Speed Rail Corridor
      • Length: 508 km
      • Design speed: 320 kmph.
    • Amrit Bharat Station Scheme (2023): 208 stations redeveloped out of 1,338 identified.
    • Kavach:
      • Indigenous Automatic Train Protection System.
      • Operational on 3,103 route km.
      • Installed on 4,277 locomotives.
    • Train accidents declined from 135 (2014-15) to 16 (2025-26).

    Important Railway Projects

    • Chenab Bridge (2025): World’s highest railway arch bridge. Height: 359 m above Chenab River.
    • Anji Khad Bridge: India’s first cable-stayed railway bridge.
    • Pamban Bridge (2025): India’s first vertical-lift railway sea bridge.
    • Bairabi-Sairang Railway Line: Connects Mizoram. Length: 51.38 km.

    Roads and Highways

    • India’s road network: 63.73 lakh km and Second largest globally.
    • National Highways:
      • 91,287 km (FY14)
      • 1,46,566 km (March 2026).
    • Four-lane and above highways: 18,371 km to 45,516 km.
    • Access-controlled expressways: 3,644 km operational.

    PMGSY

    • Rural habitations connected: 99.6% eligible habitations.
    • Completed roads: 4.11 lakh km (2014-26).
    • Bridges completed: 10,293.

    Bharatmala Pariyojana

    • Approved: 2017.
    • Roads completed: 22,590 km.

    Landmark Projects

    • Z-Morh (Sonamarg) Tunnel, Sudarshan Setu, Maitri Setu over Feni River, Atal Tunnel, Dr. Syama Prasad Mukherjee Tunnel, Dhola-Sadiya Bridge.

    2. Civil Aviation

    • Operational airports: 74 (2014) and 165 (2026).
    • Investments: Over ₹1.4 lakh crore.

    UDAN

    • Launched: 2016.
    • Routes operational: 665 routes.
    • Connected: 95 airports/heliports/water aerodromes.
    • Beneficiaries: Over 1.64 crore passengers.
    • Modified UDAN (2026): Outlay: ₹28,840 crore.

    Digi Yatra

    • Facial recognition-based travel.
    • Operational at 38 airports.

    GAGAN

    • Operational since 2015.
    • World’s first equatorial Satellite-Based Augmentation System (SBAS).

    3. Metro and RRTS

    • Metro network: 248 km (2014) to 1,155+ km (2026).
    • India has the third-largest metro network.
    • Metro cities: 5 to 26.

    Notable Developments

    • Kolkata: India’s first underwater metro tunnel.
    • Kochi: India’s first Water Metro.
    • Namo Bharat: Delhi-Meerut RRTS.

    4. Ports and Waterways

    • Major port capacity: 873 MMTPA (2014) to 1,726 MMTPA (2026).
    • Cargo handled: 581 MMT to 915 MMT.
    • Vessel turnaround: 94 hours to 48.8 hours.

    Sagarmala Programme

    • Launched: 2015.
    • Projects completed: 78.

    Inland Waterways

    • National Waterways: 5 (2014) to 111 (2026).
    • Operational waterways: 32.
    • Cargo movement: 29 MMT to 218 MMT.

    Jal Marg Vikas Project

    • On National Waterway-1.
    • Stretch: Varanasi to Haldia.

    Arth Ganga

    • Community jetties: 66 operational.

    5. Industrial Infrastructure

    • Industrial parks mapped: 4,220.
    • Plug-and-play parks: 272 operational.
    • Industrial smart cities approved: 20.

    BHAVYA Scheme

    • Approved: March 2026.
    • Objective: Develop 100 plug-and-play industrial parks.

    6. Logistics

    PM GatiShakti

    • Launched: 2021.
    • GIS platform integrating: 58 Ministries/Departments.
    • Data layers: 3,202+.

    National Logistics Policy

    • Launched: 2022.
    • India’s Logistics Performance Index rank: 54 (2014) to 38 (2023).

    Digital Logistics Platforms

    • ULIP (2022).
    • Logistics Data Bank (2016).
    • NETC FASTag (2016).

    PRAGATI

    • Launched: 2015.
    • Projects reviewed: 382.
    • Value: ₹85 lakh crore.

    7. Water Infrastructure

    Jal Jeevan Mission

    • Launched: 2019.
    • Rural tap coverage: 17% at launch to 81.94% (June 2026).
    • Households covered: 15.86 crore.

    Other Initiatives

    • PMKSY (2015), Namami Gange (2014), Ken-Betwa Link Project (2021, FloodWatch India App, and Dam Safety Act, 2021.

    8. Housing

    PMAY-U

    • Launched: 2015.
    • Houses sanctioned: 125.31 lakh.
    • Houses completed: 98.10 lakh.
    • PMAY-U 2.0: One crore additional beneficiaries by 2028-29.

    PMAY-G

    • Launched: 2016.
    • Houses completed: 3.06 crore.

    SWAMIH Fund

    • Launched: 2019.
    • Corpus: ₹15,531 crore.

    AMRUT

    • Launched: 2015.
    • Projects sanctioned: ₹2.79 lakh crore.

    9. Energy

    • Installed capacity: 248 GW (2014) to 532.74 GW (2026).
    • Power shortage: 4.2% to 0.03%.

    Renewable Energy

    India is: 3rd largest clean energy capacity holder and 4th largest installed wind energy producer.

    Important Schemes

    • PM Surya Ghar: Muft Bijli Yojana (2024).
    • GOBARdhan Scheme (2018).
    • Saubhagya Scheme (2017).

    International Initiatives

    • International Solar Alliance: 125 member countries.
    • Global Biofuels Alliance: 33 countries and 14 organisations.

    10. LPG and Clean Cooking

    • LPG coverage: 55.9% (2014) to 107.2% (2026).
    • LPG consumers: 14.51 crore to 33.39 crore.

    PM Ujjwala Yojana

    • Launched: 2016.
    • Additional 25 lakh connections approved in FY26.

    11. Digital Infrastructure

    • Internet connections: 25.15 crore to 100.29 crore.
    • Broadband:6.1 crore to 99.56 crore.
    • Monthly data usage: 61.66 MB to 24.01 GB.

    PM-WANI

    • Launched: 2020.
    • Wi-Fi hotspots: 4.10 lakh+.

    5G

    • Available in 99.9% districts.
    • 5.08 lakh BTS installed.

    JAM Trinity

    • Jan Dhan, Aadhaar and Mobile.

    UPI

    • March 2026: 2,264 crore transactions and ₹29.53 lakh crore value.
    • Operational in UAE, Singapore, Bhutan, Nepal, Sri Lanka, France, Mauritius, and Qatar.

    Important Digital Platforms

    • DigiLocker, UMANG, Common Service Centres, eHospital, PM e-Vidya, DIKSHA, SWAYAM.

    [2025] Consider the following statements:
    I. Indian Railways have prepared a National Rail Plan (NRP) to create a future ready railway system by 2028.
    II. Kavach’ is an Automatic Train Protection system, development in collaboration with Germany.
    III. ‘Kavach’ system consists of RFID tags fitted on track in station section.
    Which of the statements given above are not correct?

    [A] I and II only

    [B] II and III only

    [C] I and III only

    [D] I, II and III

  • The boost centre’s solar power schemes need

    Why in the News?

    India’s flagship decentralised solar schemes, PM Surya Ghar Yojana and PM-KUSUM, have achieved only about 13 GW capacity against a target of 40 GW. This has prompted the Parliamentary Estimates Committee to examine implementation bottlenecks.

    Background

    1. Solar Dominance: Solar power now accounts for nearly 30% of India’s installed electricity generation capacity.
    2. Rapid Capacity Addition: India added more than 50 GW of solar capacity during the last two years.
    3. Global Position: India added more solar power in 2025 than any country except China.

    Why is Decentralised Solar Power Becoming Central to India’s Energy Transition?

    Decentralised solar power (DRE) generates electricity at or near the point of consumption rather than relying on large, centralized power plants. This approach eliminates long-distance transmission losses and empowers local communities by providing affordable, continuous, and reliable energy

    1. Rising Electricity Demand: Increasing temperatures, urbanisation and economic growth are pushing electricity demand upwards.
    2. Land Constraints: Availability of land for large utility-scale solar parks is becoming increasingly limited.
    3. Climate Resilience: Distributed generation strengthens energy security during periods of high demand and climatic stress.
    4. Peak Demand Management: Solar power significantly contributed to meeting daytime peak demand during April-May 2026.
    5. Hydropower Constraints: Hydropower capacity expansion has stagnated, reducing its ability to meet incremental demand.
      1. Stagnating Share: Hydropower’s share in India’s installed power capacity has declined from around 25% in the early 1990s to about 10% today, despite growth in overall electricity demand.
      2. Limited Capacity Addition: India added only about 5 GW of large hydropower capacity between 2014 and 2024, compared to over 100 GW of solar capacity during the same period.
      3. Current Capacity: India’s installed hydropower capacity stands at roughly 48-49 GW, while solar capacity has crossed 100 GW.
      4. Climate Vulnerability: Erratic monsoons, changing river flows, environmental clearances, rehabilitation issues, and long gestation periods have slowed hydropower expansion.
      5. Energy Transition Implication: With hydropower unable to expand rapidly enough to meet rising demand, solar, particularly decentralised solar, is increasingly expected to meet incremental electricity requirements.

    What are the Key Features of PM Surya Ghar Yojana and PM-KUSUM?

    PM Surya Ghar Yojana

    1. Household Coverage: Targets rooftop solar installation in 1 crore households.
    2. Free Electricity: Provides electricity benefits of up to 300 units per month.
    3. Capital Subsidy: Offers direct subsidy support for rooftop solar equipment.
    4. Decentralised Generation: Encourages household-level electricity production and grid integration.

    Progress

    TargetAchievement
    1 crore households connected40.52 lakh households
    30 GW installed capacity12 GW

    PM-KUSUM

    The Pradhan Mantri Kisan Urja Suraksha evam Utthan Mahabhiyan (PM-KUSUM) is an initiative by the Ministry of New and Renewable Energy (MNRE). It provides farmers with heavy subsidies for solar agricultural pumps and solar power plants, designed to generate income, provide daytime irrigation, and replace expensive diesel or grid power

    1. Farmer-Centric Design: Supports farmers in establishing decentralised solar infrastructure.
    2. Solar Plants on Unused Land: Enables installation of small solar plants on unused agricultural land.
    3. Solar Water Pumps: Supports both standalone and grid-connected solar irrigation pumps.
    4. Additional Income: Allows sale of surplus electricity to the grid.
    5. Cost Reduction: Reduces diesel and conventional electricity expenses.

    Progress

    TargetAchievement
    14 lakh solar water pumps10.9 lakh
    2.5 lakh solar irrigation pumps15,000
    30 GW decentralised solar capacity1.2 GW

    How Successful Have These Flagship Programmes Been?

    1. Combined Budget: Approximately ₹95,000 crore.
    2. Combined Capacity Created: About 13 GW as of 31 May 2026.
    3. Target Capacity: 40 GW by the end of the current financial year.
    4. Achievement Gap: Only around one-third of the targeted capacity achieved.
    5. PM-KUSUM Delay: Initially targeted for completion by 2022 but extended until the end of the current financial year due to pandemic-related disruptions.
    6. Best Performing Component: Standalone off-grid solar water pumps under PM-KUSUM.

    How is Performance Highly Uneven Across States?

    PM Surya Ghar Better Performers

    StateInstallationsHouseholds ConnectedSubsidy (₹ crore)
    Gujarat6,81,1809,77,7549,277
    Maharashtra6,04,5229,42,37823,149
    Uttar Pradesh5,62,6565,77,10319,095
    Kerala2,52,8032,58,959382
    Rajasthan2,15,8422,23,06630,597

    PM Surya Ghar Underperformers

    StateInstallationsHouseholds ConnectedSubsidy (₹ crore)
    West Bengal1,6951,7581,868
    Punjab14,47016,64120,693
    Karnataka19,79330,39527,725
    Bihar20,27220,90515,405
    Tamil Nadu72,98885,74315,701

    How Do Power Subsidies Affect Solar Adoption?

    1. Distorted Economic Incentives: Free or highly subsidised electricity reduces the financial attractiveness of investing in rooftop solar systems.
    2. Reduced Payback Benefits: Consumers receiving subsidised electricity perceive limited savings from solar installations, resulting in lower adoption rates.
    3. High Upfront Cost Sensitivity: Households are less willing to incur substantial initial costs for solar systems when electricity is already available at little or no cost.
    4. Subsidy-Driven Consumer Behaviour: Existing subsidy regimes encourage continued dependence on grid electricity rather than self-generation through rooftop solar.
    5. Policy Contradiction: Simultaneous promotion of rooftop solar and provision of free electricity creates conflicting incentives for consumers.
    6. Official Recognition: The Ministry of New and Renewable Energy informed the Parliamentary Estimates Committee that free electricity schemes have emerged as a major constraint to PM Surya Ghar implementation.

    Evidence from States

    1. Punjab: Provides 300 free units to households and free electricity for agricultural tubewells; annual power subsidy expenditure exceeds ₹20,000 crore.
    2. Karnataka: Electricity subsidy bill stands at approximately ₹27,000 crore.
    3. Tamil Nadu: Electricity subsidy expenditure is around ₹15,700 crore.

    Why Does the Upfront Cost Remain the Biggest Barrier?

    1. High Initial Investment: Solar installations often require investment of several lakh rupees.
    2. Delayed Returns: Benefits accrue gradually through reduced electricity bills and sale of surplus power.
    3. Affordability Challenge: Many households and farmers struggle to mobilise upfront capital despite long-term savings.
    4. Credit Constraints: Access to affordable financing remains limited.
    5. Committee Recommendation: Parliamentary Estimates Committee recommended mechanisms that reduce upfront payment burdens.

    Why Have Some States Succeeded Despite Offering Subsidised Power?

    1. Additional Incentives: Gujarat, Rajasthan and Uttar Pradesh supplemented central support with state-level incentives.
    2. Policy Convergence: State support reduced effective installation costs.
    3. Consumer Confidence: Additional incentives improved economic viability.
    4. Administrative Efficiency: Faster approvals and implementation improved adoption rates.
    5. Evidence of Success: These states account for nearly 70% of the total rooftop solar installations achieved under PM Surya Ghar.

    What are the Long-Term Economic Benefits of Decentralised Solar Power?

    1. Subsidy Rationalisation: Reduces long-term dependence on recurring electricity subsidies.
    2. Fiscal Savings: Full implementation of PM Surya Ghar could save approximately ₹75,000 crore annually in electricity-related expenditure.
    3. Consumer Empowerment: Converts consumers into electricity producers.
    4. Grid Stability: Reduces transmission losses and distribution burden.
    5. Energy Security: Diversifies generation sources and reduces fuel dependence.
    6. Climate Commitments: Supports India’s renewable energy and net-zero objectives.

    What is the Growing Link Between Solar Power and Electricity Demand?

    1. Demand Surge: Rising temperatures are increasing electricity consumption.
    2. Climate Variability: Lower rainfall forecasts may reduce hydropower availability.
    3. Summer Demand Peaks: Solar generation is increasingly meeting daytime peak loads.
    4. Future Energy Mix: Solar is expected to become India’s second-largest source of electricity generation, overtaking hydropower.
    5. Decentralisation Advantage: Distributed generation can cushion local supply-demand imbalances.

    Conclusion

    India’s clean energy transition increasingly depends on decentralised solar generation alongside utility-scale renewable projects. While PM Surya Ghar and PM-KUSUM have demonstrated their transformative potential, persistent barriers such as high upfront costs and distortionary electricity subsidies continue to constrain adoption. Bridging this gap through targeted incentives, affordable financing and subsidy reforms will determine whether decentralised solar power can become a major pillar of India’s energy security and climate strategy.

    PYQ Relevance

    [UPSC 2020] Describe the benefits of deriving electric energy from sunlight in contrast to the conventional energy generation. What are the initiatives offered by our Government for this purpose?

    Linkage: The PYQ focuses on solar energy as a sustainable alternative to conventional power sources and government efforts to promote its adoption. PM Surya Ghar and PM-KUSUM are among India’s flagship initiatives for promoting decentralised solar energy. The article evaluates their achievements, implementation challenges, and significance for India’s energy security and clean energy transition.

  • Zojila Tunnel

    Why in the news?

    The strategically important Zojila Tunnel achieved its final breakthrough on June 9, 2026, with Union Minister Nitin Gadkari overseeing the final blasting from the Kargil side. The tunnel will provide all-weather connectivity between Kashmir and Ladakh.

    Key Highlights

    • Length: 13.14 km
    • Altitude: 11,578 feet
    • Cost: Over ₹6,800 crore
    • Connects: Baltal (Kashmir) and Meenamarg/Drass (Ladakh)
    • Travel time reduced: From 3 hours to 20 minutes
    • Constructed by: Megha Engineering and Infrastructures Ltd
    • Tunnel type: Single-tube, bi-directional, two-lane road tunnel
    • Geological Zone: Seismic Zone IV

    Strategic Importance

    • Ensures all-weather connectivity between Kashmir and Ladakh.
    • Critical for the movement of Troops, Defence equipment, and Supplies to the Line of Actual Control (LAC)
    • Reduces dependence on the snow-prone Zojila Pass.
    • Enhances India’s strategic preparedness in border regions.

    Construction Method

    • The tunnel was constructed using the: New Austrian Tunnelling Method (NATM)

    Key features of NATM:

    • Sequential excavation
    • Immediate support using: Shotcrete and Rock bolting
    • Continuous geotechnical monitoring
    • Suitable for fragile Himalayan geology

    Q. With reference to India’s projects on connectivity, consider the following statements::
    1. East-West Corridor under Golden Quadrilateral Project connects Dibrugarh and Surat.
    2. Trilateral Highway connects Moreh in Manipur and Chiang Mai in Thailand via Myanmar.
    3. Bangladesh- China- India- Myanmar Economic Corridor connects Varanasi in Uttar Pradesh with Kunming in China.
    How many of the above statements are correct?

    [A] Only one

    [B] Only two

    [C] All three

    [D] None

  • [8th June 2026] The Hindu OpED: From borderland to India’s strategic resource frontier

    Mentor’s Comment

    India’s search for critical minerals has brought the Northeast into the national strategic spotlight. Government narratives increasingly portray states such as Arunachal Pradesh, Manipur, Meghalaya, and Mizoram as resource-rich frontiers capable of supporting India’s clean energy transition and industrial ambitions. This highlights a significant shift in how India views the Northeast. Traditionally it was framed through the lens of borders, security, insurgency, and connectivity.

    Why is the Northeast Emerging as India’s Strategic Resource Frontier?

    1. Critical Mineral Demand: Expanding demand for lithium, cobalt, graphite, nickel, and rare earth elements is reshaping global industrial and geopolitical competition.
    2. Energy Transition: Batteries, electric vehicles, renewable energy technologies, and energy storage systems depend heavily on critical minerals.
    3. Technological Manufacturing: Semiconductors and advanced manufacturing require secure access to strategic minerals.
    4. Defence Applications: Defence technologies increasingly rely on mineral-intensive supply chains.
    5. Strategic Autonomy: Reduces dependence on external suppliers and strengthens supply-chain resilience.
    6. Resource Potential: Geological surveys indicate significant mineral potential across several Northeastern states.

    How Has Government Discourse on the Northeast Changed?

    1. Borderland Narrative: The Northeast was historically discussed through issues of insurgency, territorial security, border management, and connectivity.
    2. Security-Centric Approach: Infrastructure projects were often justified as instruments of strategic access and territorial integration.
    3. Resource Frontier Narrative: The region is increasingly portrayed as a source of strategic minerals critical for national development.
    4. Expanded Strategic Significance: Discussions now combine security, resource access, industrial policy, and geopolitical competitiveness.
    5. National Economic Integration: Resource development is becoming central to how the region is represented in national policymaking.

    What Is the Scale of Critical Mineral Exploration in the Northeast?

    1. Exploration Expansion: Geological Survey of India undertook 43 critical mineral exploration projects in northeastern states during the 2022-23, 2023-24 and 2024-25 field seasons.
    2. Minerals Covered: Exploration focused on graphite, vanadium, lithium, rare earth elements, nickel and cobalt.
    3. Geographical Spread: Activities expanded across Arunachal Pradesh, Meghalaya, Assam, Nagaland and Manipur.
    4. Manipur Projects: Recent exploration initiatives involve nickel, cobalt and chromium deposits.
    5. Long-Term Potential: Geological surveys have consistently pointed toward significant mineral prospects in the region.

    Why Does the ‘Resource Frontier’ Narrative Oversimplify the Northeast’s Reality?

    1. Frontier Concept: The term suggests empty spaces waiting for discovery, development, and extraction.
    2. Historical Assumption: Frontiers are often portrayed as regions awaiting integration into the national economy.
    3. Social Reality: The Northeast already contains complex social, political, cultural, and economic systems.
    4. Existing Institutions: Local governance structures, customary institutions, and traditional land-management systems are already deeply embedded.
    5. Identity and Memory: Land carries historical, cultural, and political significance beyond its economic value.
    6. Political Meaning: Resource extraction enters territories that already possess established histories and institutions.

    Why Are Land and Ownership Questions Central to Resource Development?

    1. Customary Land Systems: Many communities maintain long-standing customary ownership arrangements.
    2. Authority Structures: Land is closely linked to local political authority and governance.
    3. Identity Linkages: Ownership often forms part of community identity and historical memory.
    4. Representation Concerns: Resource decisions raise questions regarding who participates in decision-making.
    5. Trust Deficit: Development projects are frequently assessed through local perceptions of trust and inclusion.
    6. Beyond Economics: Land debates encompass social legitimacy, rights, and political recognition.

    How Do Existing Regional Conflicts Influence Resource Politics?

    1. Manipur Experience: Years of violence and displacement have intensified debates over land and territorial arrangements.
    2. Ecological Vulnerability: Communities increasingly raise concerns regarding environmental impacts of extraction.
    3. Ownership Disputes: Resource projects often intersect with unresolved questions of land rights.
    4. Political Inclusion: Communities evaluate projects through the lens of representation and participation.
    5. Conflict Sensitivity: Resource development in fragile regions may acquire meanings beyond economic development.

    Can Resource Development Create New Governance Challenges?

    1. Institutional Capacity: Extraction may proceed faster than institutions capable of managing its consequences.
    2. Uneven Development: The Northeast has historically experienced uneven infrastructure and economic growth.
    3. Connectivity Mismatch: Infrastructure projects have sometimes emerged without corresponding economic ecosystems.
    4. Participation Deficit: Strategic priorities have often overshadowed local participation and consultation.
    5. Social Risks: Rapid extraction may reproduce tensions if benefits are unevenly distributed.
    6. Governance Imperative: Resource development requires strong institutions, transparency, and social safeguards.

    Why Is Inclusion as Important as Extraction?

    1. Benefit Sharing: Local communities seek meaningful economic participation.
    2. Employment Opportunities: Resource projects can address long-standing developmental deficits.
    3. Political Legitimacy: Inclusive governance strengthens acceptance of projects.
    4. Community Ownership: Participation improves trust and reduces conflict.
    5. Sustainable Development: Long-term success depends on balancing strategic objectives with local aspirations.

    Conclusion

    The Northeast’s emergence as a critical mineral hub presents India with a strategic opportunity to strengthen resource security, support the energy transition, and reduce external dependence. However, the region cannot be treated merely as a repository of minerals waiting for extraction. Sustainable success will depend on reconciling national developmental priorities with local aspirations, customary land rights, ecological safeguards, and participatory governance. The real challenge is not only to extract resources from the Northeast, but to ensure that its people become equal stakeholders in the region’s transformation from a borderland to a strategic resource frontier.

  • E85 Fuel Rollout in India

    Why in the news?

    Hardeep Singh Puri launched E85 fuel at an Indian Oil Corporation retail outlet in New Delhi on World Environment Day 2026.

    What is E85 Fuel?

    • E85 is a high ethanol-blended fuel containing: 80–85% ethanol and 14–19% petrol.
    • Designed specifically for: Flex-Fuel Vehicles (FFVs).

    What are Flex-Fuel Vehicles (FFVs)?

    • Vehicles capable of operating on: Ethanol blends from E20 to E100.
    • They automatically adjust engine functioning according to fuel blend composition.

    Rollout Plan

    • Initial rollout: 48 retail outlets of Public Sector Oil Marketing Companies (OMCs).
    • Expansion target: 500 outlets by December 2026. 5,000 outlets by December 2027.
    • Goal: Raise ethanol blending levels to nearly 26% by 2030-31.

    Ethanol Blending Achievements

    • Ethanol blending increased from 1.53% in 2014 to 20% in 2026.
    • India achieved 20% ethanol blending target five years ahead of schedule.
    • Benefits achieved:
      • Saved over ₹1.84 lakh crore in foreign exchange.
      • Replaced nearly 302 lakh metric tonnes of crude oil imports.

    Benefits of E85

    Economic Benefits

    • E85 priced nearly ₹20 per litre cheaper than conventional petrol.
    • Can generate Demand for over 312 crore litres of ethanol if FFV adoption increases.
    • Could transfer Nearly ₹12,403 crore to farmers annually.

    Environmental Benefits

    • Reduces lifecycle greenhouse gas emissions by: Around 61% compared to petrol.
    • Higher ethanol blending: Improves combustion efficiency and Reduces particulate matter emissions.
    • Potential reduction: 66.4 lakh metric tonnes of CO₂ annually.

    [2025] Consider the following statements:
    Statement I: Of the two major ethanol producers in the world, i.e., Brazil and the United States of America, the former produces more ethanol than the latter.
    Statement II: Unlike in the United States of America where corn is the principal feedstock for ethanol production, sugarcane is the principal feedstock for ethanol production in Brazil.
    Which one of the following is correct in respect of the above statements?

    [A] Both Statement I and Statement II are correct and Statement II explains Statement I

    [B] Both Statement I and Statement II are correct but Statement II does not explain Statement I

    [C] Statement I is correct but Statement II is not correct

    [D] Statement I is not correct but Statement II is correct

  • The future of India’s chip industry

    Why in the News?

    Recently, NITI Aayog Frontier Tech Hub report was released and it assesses the country’s readiness for chip manufacturing. India has approved its first semiconductor fabrication unit at Dholera and launched a ₹76,000 crore India Semiconductor Mission. But, the report finds that the domestic ecosystem is still not equipped to meet national demand.

    How Has India Built the Foundations of a Semiconductor Ecosystem?

    1. Policy Priority: Semiconductor manufacturing has been identified as a strategic national priority.
    2. India Semiconductor Mission (ISM): Operates with a corpus of ₹76,000 crore.
    3. Financial Support: Provides incentives for fabs, compound semiconductor facilities, packaging units, design initiatives, and research.
    4. Capital Subsidies: Major projects receive capital support of up to 50%.
    5. Production Incentives: Several projects receive production-linked and output-linked incentives.
    6. Dholera Fab: India’s first semiconductor fabrication facility is expected to become operational by 2028.
    7. Ecosystem Development: Multiple packaging and testing facilities have been approved.

    India Semiconductor Mission

    1. The India Semiconductor Mission (ISM) is a specialized, independent business division within the Digital India Corporation under the Ministry of Electronics and Information Technology (MeitY). 
    2. It was launched in 2021 with an original financial outlay of ₹76,000 crore.
    3. Its core purpose is to build a vibrant, sustainable semiconductor and display ecosystem to transition India from a chip consumer into a global electronic manufacturing and design hub.

    Core Schemes & Financial Support: The initiative operates as a single-window nodal agency that evaluates proposals and distributes a 50% fiscal subsidy on a pari-passu basis across critical segments:

    1. Semiconductor Fabs: Financial backing to set up silicon-based wafer fabrication plants.
    2. Display Fabs: Incentives for building TFT LCD or AMOLED display manufacturing units.
    3. Compound Semiconductors & ATMP: Support for Silicon Photonics, Sensors, and Assembly, Testing, Marking, and Packaging (ATMP/OSAT) plants.
    4. Design Linked Incentive (DLI): Financial and infrastructure support for domestic fabless companies developing Integrated Circuits and Systems on Chips (SoCs).

    ISM 2.0

    1. Announced in the latest 2026 Union Budget, ISM 2.0 drives local supply chain self-sufficiency. 
    2. It receives a targeted ₹1,000 crore budgetary provision for FY 2026-27 alongside an overall ₹8,000 crore layout for the modified manufacturing program. 

    Key targets include:

    1. Upstream Supply Chains: Localizing production of specialty gases, chemicals, and lithography tools.
    2. Indian IP & Processors: Scaling indigenous open-source RISC-V processors like DHRUV64 under the Digital India RISC-V (DIR-V) programme to secure digital sovereignty.
    3. Talent Pyramid: Training over 85,000 to 100,000 engineers via the Chips to Startup (C2S) program and dedicated SMART Labs.
    4. NITI Aayog Roadmap: Aligning with the NITI Frontier Tech Hub’s newly released “Future of India’s Semiconductor Industry” roadmap to target a $100-110 billion domestic market by 2030.

    Why Does the Report Argue That India Remains Semiconductor-Dependent?

    1. Import Dependence: India depends almost entirely on external suppliers, importing an estimated $15+ billion in electronics hardware. Major suppliers include China, Hong Kong, Taiwan, and Singapore
    2. Domestic Supply Gap: India’s semiconductor ecosystem cannot fully meet domestic demand. The domestic semiconductor ecosystem is largely limited to Assembly, Testing, Marking, and Packaging (ATMP) rather than full-scale fabrication.
    3. Electronics Vulnerability: Growth in electronics manufacturing remains dependent on external suppliers.
    4. National Security Concerns: Defence systems rely on imported semiconductor components.
    5. Supply-Chain Risks: Geopolitical disruptions could affect access to critical technologies and components.

    What Structural Challenges Limit India’s Semiconductor Manufacturing Ambitions?

    1. Time-Intensive Manufacturing Cycle
      1. Long Gestation Period: Semiconductor fabs generally require 4-5 years before commercial production.
      2. Yield Optimisation: Reliability and quality improvement continue for several quarters after production begins.
    2. Technological Complexity
      1. Equipment Dependence: More than 50 specialised equipment categories are required.
      2. Global Supplier Concentration: Critical manufacturing tools are controlled by a limited number of international firms.
    3. Capital Intensity
      1. High Investment Requirements: Semiconductor manufacturing demands massive upfront capital expenditure.
      2. Financial Risks: Long project cycles increase uncertainty for investors.
    4. Skill Requirements
      1. Advanced Expertise: Requires highly skilled engineers, designers, and process specialists.
      2. Technology Gaps: Domestic capabilities remain under development.

    Should India Replicate the Entire Global Semiconductor Value Chain?

    India should not replicate the entire global semiconductor value chain, as doing so is financially impractical and technologically inefficient. The global semiconductor industry is highly fragmented, capital-intensive, and reliant on decades of hyper-specialization across different countries.

    1. Selective Strategy: The report discourages attempts to replicate the complete global manufacturing spectrum.
      1. Example: Instead of trying to build complex extreme ultraviolet (EUV) lithography machines (a sector monopolized by ASML in the Netherlands), India is focusing on specific nodes (like 28nm and above) that serve automotive and consumer electronics markets.
    2. Capital Efficiency: Setting up a single advanced semiconductor fabrication plant (fab) can cost upwards of $10 billion to $20 billion. Replicating the entire chain would require hundreds of billions of dollars.
      1. Example: By directing capital toward Assembly, Testing, Marking, and Packaging (ATMP) and Outsourced Semiconductor Assembly and Test (OSAT) facilities, such as the Tata Electronics facilities, India can enter the manufacturing ecosystem faster and at a fraction of the cost of a leading-edge logic fab.
    3. System-Level Differentiation: Emphasises strategic specialisation rather than broad replication.
      1. Example: India houses nearly 20% of the world’s semiconductor design engineers. By utilizing the Design-Linked Incentive (DLI) scheme, local startups can design specialized, proprietary chips for Artificial Intelligence (AI), 5G communications, and Internet of Things (IoT) devices, establishing a unique global niche.
    4. Resource Optimisation: Supports targeted investments in high-potential segments.

    Why Does the Report Advocate a Shift Towards Mature and Strategic Nodes?

    Semiconductor nodes represent the transistor size, with advanced (3-7nm) focusing on density for high-end computing and mature nodes (28nm+) offering reliability for industrial use. The report advocates shifting toward mature and strategic nodes because they cost significantly less to build, have higher market demand in India, and directly secure critical industries like defense and automotive.

    1. Technological Feasibility: India currently lacks the manufacturing ecosystem, equipment base, and process expertise required for competitive production at advanced 3-7 nanometre nodes.
    2. Capital Efficiency: Mature-node semiconductor facilities require significantly lower investment and entail lower commercial risks than cutting-edge fabrication plants.
    3. Market Demand: Mature-node chips continue to dominate demand in automobiles, industrial machinery, consumer electronics, power systems, and telecommunications equipment.
    4. Strategic Utility: Domestic production of mature semiconductors can strengthen supply-chain resilience in defence, telecom, automotive, and critical infrastructure sectors.
    5. Comparative Advantage: Compound semiconductors offer niche opportunities where India can develop specialised capabilities without directly competing in the most advanced fabrication segments.
    6. Faster Capability Creation: Focusing on mature technologies enables quicker ecosystem development, workforce training, and industrial scaling than pursuing frontier-node manufacturing.

    Why Can Semiconductor Packaging Become India’s Most Viable Entry Point into the Global Semiconductor Industry?

    1. Lower Capital Requirement: Packaging and testing facilities require substantially lower investment than semiconductor fabrication plants, making entry easier for India.
    2. Technological Accessibility: Packaging operations involve lower technological complexity than advanced-node chip fabrication, reducing entry barriers.
    3. Workforce Advantage: India’s large pool of engineers and technical professionals can support labour-intensive assembly, testing, and packaging operations.
    4. Faster Capacity Expansion: Packaging facilities can be established and scaled more quickly than fabrication units, enabling rapid ecosystem development.
    5. Import Substitution Potential: Domestic packaging capabilities can reduce dependence on foreign assembly and testing services in high-volume semiconductor segments.
    6. Global Value Chain Integration: Packaging provides a practical route for India to participate in international semiconductor supply chains without mastering frontier-node manufacturing.
    7. Foundation for Ecosystem Growth: A strong packaging industry can create demand for ancillary industries, skills, logistics networks, and future fabrication investments.

    What Does “Sovereign Design and Research Capability” Mean for India?

    1. Design Leadership: Moves beyond manufacturing toward intellectual-property creation.
    2. R&D Excellence: Strengthens indigenous innovation capabilities.
    3. AI Integration: Promotes application of Artificial Intelligence in semiconductor engineering.
    4. Deep Capabilities: Supports transition from service-led design activities to original technology creation.
    5. Architectural Innovation: Encourages development of differentiated semiconductor systems and integration technologies.

    How Should India Structure Future Semiconductor Investments?

    1. Second Phase of ISM: Future policy support is under consideration.
    2. Investment Requirement: The report estimates $45-60 billion over a ten-year period.
    3. Bankability Focus: Recommends prioritising projects with clearer commercial viability.
    4. Risk Management: Encourages investment in segments with stronger return potential.
    5. Targeted Expansion: Supports gradual ecosystem deepening rather than large-scale expansion across all segments.

    Which International Partnerships Are Critical for India’s Semiconductor Strategy?

    1. Strategic Partners: Identifies the United States, Japan, European Union, and South Korea as priority partners.
    2. Technology Access: Facilitates acquisition of critical manufacturing tools.
    3. Lifecycle Support: Strengthens equipment servicing and maintenance.
    4. Knowledge Transfer: Expands access to advanced manufacturing practices.
    5. Packaging Advantage: Leverages India’s workforce and packaging ecosystem.

    What Are the Broader Strategic Implications for India?

    1. Economic Security: Reduces dependence on external technology suppliers.
    2. Supply-Chain Resilience: Protects against geopolitical disruptions.
    3. National Security: Supports defence and critical infrastructure requirements.
    4. Industrial Competitiveness: Strengthens electronics manufacturing.
    5. Technological Sovereignty: Enhances control over critical technologies.
    6. Global Positioning: Improves India’s role in future technology ecosystems.

    Conclusion

    India’s semiconductor strategy is entering an execution phase where success will depend less on replicating the entire global value chain and more on building competitive strengths in areas aligned with domestic capabilities. The NITI Aayog report advocates a pragmatic approach centred on mature-node manufacturing, semiconductor packaging, design innovation, and strategic international partnerships. By prioritising commercially viable segments while gradually deepening technological capabilities, India can strengthen supply-chain resilience, reduce strategic vulnerabilities, and establish itself as a credible participant in the global semiconductor ecosystem.

    PYQ Relevance

    [UPSC 2025] India aims to become a semiconductor manufacturing hub. What are the challenges faced by the semiconductor industry in India? Mention the salient features of the Indian Semiconductor Mission

    Linkage: The PYQ tests understanding of high-technology manufacturing, industrial policy, technological self-reliance, and strategic sectors. The article evaluates India’s semiconductor strategy through the NITI Aayog report, highlighting challenges in fabrication, supply chains, investment, and skills while assessing the future direction of the India Semiconductor Mission

  • Revision of Base Year for Index of Industrial Production (IIP) to 2022-23

    Why in the News?

    The Ministry of Statistics and Programme Implementation (MoSPI) released the report of the Technical Advisory Committee (TAC) on revising the base year of the All-India Index of Industrial Production (IIP) from 2011-12 to 2022-23.

    About IIP

    • The Index of Industrial Production (IIP) measures: Growth in industrial activity in India.
    • Published By: National Statistical Office (NSO) Under MoSPI

    Technical Advisory Committee (TAC-IIP)

    • Chairman: Mridul K. Saggar
    • Constituted: September 2024
    • Purpose
      • Guide the revision of IIP base year.
      • Improve methodology, coverage, and accuracy.

    Major Changes in New IIP Series (2022-23)

    • Expanded Coverage: New sectors included:
      • Minor minerals
      • Rare earth minerals
      • Gas supply
      • Water supply
      • Sewerage and waste management

    Revised Item Basket

    • Total products: 1,042
    • Mapped into: 463 item groups
    • Based on: National Industrial Classification (NIC)-2025

    National Industrial Classification (NIC)-2025

    • National Industrial Classification (NIC) is India’s official system for classifying economic and industrial activities.
    • It helps in:
      • Collection of statistical data
      • Industrial surveys
      • National accounts compilation
      • Economic analysis and policy formulation

    Released by the Ministry of Statistics and Programme Implementation (MoSPI) through the National Statistical Office (NSO).

    [2012] In India the overall Index of Industrial Production, the Indices of Eighth Core Industries have combined weight of 37.90%. Which of the following are among those Eight Core Industries?
    1. Cement
    2. Fertilizers
    3. Natural Gas
    4. Refinery products
    5. Textiles
    Select the correct answer using the codes given below:

    [A] 1 and 5 only

    [B] 2, 3 and 4 only

    [C] 1, 2, 3 and 4 only

    [D] 1, 2, 3, 4 and 5

  • India’s Crude Oil Import Bill Surges Despite Lower Imports

    Why in the News?

    India’s crude oil import volume declined in April 2026, but the import bill rose sharply due to soaring global energy prices amid the continuing Strait of Hormuz crisis.

    Key Highlights

    Crude Oil Imports

    • Import volume:
      • Fell 4.3%
      • From 21 MMT to 20.1 MMT

    Import Bill

    • Increased nearly 50%
    • Rose from:
      • $10.7 billion to $16.3 billion

    Main Reason

    • Rising crude oil prices due to:
      • West Asia conflict
      • Disruptions around the Strait of Hormuz

    LNG Imports and Consumption

    LNG Imports

    • Declined nearly 30%
    • Fell from: 2,778 MMSCM to 1,954 MMSCM

    LNG Import Bill

    • Declined from $1.2 billion to $0.9 billion

    Natural Gas Situation

    Consumption

    • Fell 16.7%
    • Lower industrial and energy demand contributed to the decline.

    Domestic Production

    • Net natural gas production declined:
      • By 4.2%

    LPG Consumption

    Sales of LPG declined:

    • By 12.7%
    • Commercial establishments received only 70% of pre-crisis allocation.

    Overall Oil and Gas Import Bill

    • Net oil and gas import bill increased:
      • By 23%
      • To $13.9 billion

    About PPAC

    Petroleum Planning and Analysis Cell

    • Attached office of the Ministry of Petroleum and Natural Gas.
    • Provides data and analysis on India’s petroleum sector.

    [2020] The term ‘West Texas Intermediate’, sometimes found in the news, refers to a grade of:

    (a) Crude oil

    (b) Bullion

    (c) Rare earth elements

    (d) Uranium