What to Read in Indian Express Editorial ( Topic and Syllabus wise)

 

Article 1: 3D Lung Models and India’s Fight Against Tuberculosis

Why in News: Researchers at IISc Bengaluru have developed a 3D lung tissue model that significantly improves testing of tuberculosis (TB) drugs, offering new hope in India’s TB elimination efforts.

Key Details

IISc researchers created a 3D collagen-based lung model that closely mimics the human lung microenvironment.

The model shows realistic TB features such as fat-laden immune cells and bacterial clusters.

It successfully demonstrated the efficacy of Pyrazinamide, which earlier lab models failed to replicate.

The research is funded by India Alliance (DBT–Wellcome Trust partnership).

Tuberculosis Burden in India

High Disease Load: India accounts for one of the world’s largest TB burdens, with around 2.5–3 million cases annually, making TB a major public health challenge.

Drug-Resistant TB Hotspot: India is among the top contributors to MDR-TB and Rifampicin-Resistant TB (RR-TB) globally, complicating treatment and increasing mortality risks.

Economic and Social Impact: TB disproportionately affects the working-age population, leading to loss of productivity, healthcare costs, and social stigma.

National Commitment: Under the National TB Elimination Programme (NTEP), India aims to eliminate TB by 2025, ahead of the global SDG target of 2030.

Limitations of Existing TB Drug Testing Models

Planktonic Bacterial Cultures: Basic drug testing on free-floating TB bacteria fails to capture host–pathogen interactions present in human lungs.

2D Cell Culture Models: Flat mammalian cell cultures lack the structural and mechanical complexity of lung tissue, leading to poor prediction of drug efficacy.

Animal Models: While useful, animal models such as mice often show limited translation to human responses, raising ethical and scientific concerns.

Regulatory Shift: New frameworks like the FDA Modernization Act 3.0 (USA) and New Drugs and Clinical Trials Rules (India) encourage alternatives to animal testing.

Significance of the 3D Lung Model Developed by IISc

Realistic Lung Microenvironment: The soft collagen hydrogel mimics lung tissue structure, providing biochemical and mechanical cues similar to human lungs.

Improved Disease Representation: The model replicates fat-filled immune cells and bacterial clusters, key pathological features of TB seen in patients.

Accurate Drug Response: It successfully demonstrated the action of Pyrazinamide, a first-line TB drug whose efficacy is poorly reflected in older models.

Scalable and Modular Design: The system is easy to reproduce, scalable, and suitable for long-term infection studies, making it useful for drug screening.

Relevance for Drug-Resistant TB Research

Testing Against MDR/XDR-TB: The model can potentially be used with drug-resistant clinical TB isolates to identify effective new drug combinations.

Understanding Granulomas: Researchers aim to mimic TB granulomas, dense immune cell structures that restrict drug penetration and cause treatment failure.

Faster Drug Development: Reliable pre-clinical testing can reduce time, cost, and failure rates before human clinical trials.

Strengthening Indigenous Research: The innovation reflects India’s growing capacity in biomedical research and translational science.

Linkages with Policy, Innovation, and SDGs

Health and SDGs: Supports SDG 3 (Good Health and Well-being) by accelerating innovation against infectious diseases.

Atmanirbhar Bharat in Science: Demonstrates indigenous R&D capability aligned with self-reliance in health technologies.

Public–Private and Global Collaboration: Funding through DBT–Wellcome Trust partnership highlights the role of international scientific cooperation.

Ethical Research Practices: Reduced dependence on animal testing aligns with ethical and sustainable research norms.

Conclusion

The IISc-developed 3D lung model marks a significant leap in TB research by bridging the gap between laboratory testing and real human disease conditions. By enabling accurate drug efficacy testing, including for drug-resistant TB, it strengthens India’s fight against one of its most persistent public health challenges. Integrating such innovations with national TB programmes and regulatory reforms can accelerate progress toward TB elimination and reinforce India’s leadership in affordable health innovation.

EXPECTED QUESTION FOR UPSC CSE

Prelims MCQ

1. The recently developed 3D lung model by IISc Bengaluru is significant because it:

Accurately mimics the human lung microenvironment for TB research

Helps test the efficacy of TB drugs like Pyrazinamide

Can potentially aid research on drug-resistant TB

Aligns with global regulatory shifts towards non-animal testing

Select the correct answer using the code below:
(a) 1 and 2 only
(b) 1, 2 and 3 only
(c) 2 and 4 only
(d) 1, 2, 3 and 4

Answer: (d)

 

Article 2 : Corridor to the Future: High-Speed Rail, Freight and Rare Earth Connectivity

Why in News: In the Union Budget 2026, the Finance Minister announced seven high-speed rail corridors, a new freight corridor, and rare earth corridors to act as growth connectors and boost industrial and mineral development.

Key Details

Seven high-speed rail corridors will connect major economic cities as “growth connectors”.

A new East–West Dedicated Freight Corridor from Dankuni (WB) to Surat (Gujarat) was announced.

Rare earth corridors will be developed in mineral-rich states like Odisha, Kerala, Andhra Pradesh, and Tamil Nadu.

The initiatives aim to promote sustainable transport, logistics efficiency, mining, and manufacturing.

High-Speed Rail Corridors as Growth Connectors

Concept of High-Speed Rail (HSR): High-speed rail refers to passenger trains operating at speeds above 250 km/h, significantly reducing travel time and enhancing regional integration, as seen in Japan and China.

Proposed Corridors: The seven corridors include Mumbai–Pune, Pune–Hyderabad, Hyderabad–Bengaluru, Hyderabad–Chennai, Chennai–Bengaluru, Delhi–Varanasi, and Varanasi–Siliguri, covering key economic and population centres.

Economic Multiplier Effect: HSR corridors stimulate urbanisation, real estate, tourism, and service-sector growth, transforming connected cities into integrated economic clusters.

Learning from Mumbai–Ahmedabad Bullet Train: India’s first HSR project, scheduled for full completion by 2029, provides technological and institutional experience for scaling future corridors.

Dedicated Freight Corridors and Logistics Efficiency

Need for Freight Corridors: India’s logistics cost is around 13–14% of GDP, higher than global benchmarks, making freight efficiency a key economic priority.

Dankuni–Surat East–West Corridor: The proposed corridor will connect eastern industrial regions with western ports, improving freight movement across mineral, manufacturing, and export hubs.

Decongestion of Passenger Lines: Dedicated freight corridors allow separation of freight and passenger traffic, improving speed, safety, and punctuality on existing rail networks.

Integration with Multimodal Logistics: Freight corridors complement initiatives like PM Gati Shakti and National Logistics Policy, enabling seamless road–rail–port connectivity.

Rare Earth Corridors and Strategic Mineral Security

Importance of Rare Earth Minerals: Rare earth elements are critical for electronics, electric vehicles, renewable energy, defence systems, and semiconductors.

India’s Mineral Potential: States like Odisha, Kerala, Andhra Pradesh, and Tamil Nadu have significant rare earth and mineral reserves but remain underutilised.

Value Chain Development: The proposed corridors aim to promote mining, processing, research, and manufacturing, reducing dependence on imports, especially from China.

Strategic and Geopolitical Relevance: Strengthening domestic rare earth capacity enhances India’s strategic autonomy and aligns with the Make in India and Atmanirbhar Bharat initiatives.

Role of Waterways and Multimodal Connectivity

Expansion of National Waterways: The announcement of 20 new national waterways will connect mineral-rich regions with industrial centres and ports.

Cost-Effective and Sustainable Transport: Inland waterways are cheaper and more energy-efficient compared to road and rail, supporting low-carbon logistics.

Boost to Coastal and Inland Trade: Improved waterways enhance cargo movement for bulk goods like coal, minerals, and cement, supporting industrial growth.

Synergy with Rail and Road Corridors: Multimodal integration strengthens last-mile connectivity and reduces overall logistics bottlenecks.

Sustainable and Balanced Regional Development

Environment-Friendly Transport: High-speed rail and waterways reduce carbon emissions compared to road transport, aligning with India’s climate commitments.

Balanced Regional Growth: Corridors passing through eastern and southern India help address regional disparities by linking lagging regions with growth centres.

Employment Generation: Infrastructure projects create large-scale employment during construction and through long-term industrial expansion.

Urban Planning and Smart Growth: Corridor-based development encourages planned urbanisation, reducing pressure on mega cities.

Conclusion

The proposed high-speed rail, freight, and rare earth corridors mark a strategic shift towards integrated, sustainable, and future-ready infrastructure. Successful implementation will require coordinated planning, land acquisition reforms, private sector participation, and environmental safeguards. If executed effectively, these corridors can transform India’s connectivity landscape and support its ambition of becoming a $5 trillion economy.

 

Article 3: Union Budget 2026–27: Capex-Led Growth amid a Shift to Debt Sustainability

Why in News: The Union Budget 2026–27 marks a strategic shift towards debt-to-GDP targeting, while sustaining a strong public capital expenditure (capex) push to support growth.

Key Details

Centre’s capital expenditure for FY27 is pegged at ₹12.22 lakh crore, 11.5% higher than FY26 RE.

The government aims to reduce debt-to-GDP ratio to 55.6% in FY27, with a medium-term target of ~50% by FY31.

Fiscal deficit target for FY27 is set at 4.3% of GDP, continuing fiscal consolidation.

Non-tax revenues are boosted by record RBI surplus and higher disinvestment receipts.

Shift from Fiscal Deficit to Debt-to-GDP Targeting

New Fiscal Anchor: The Budget marks a transition from decades of fiscal-deficit-based targeting to debt-to-GDP ratio as the primary fiscal anchor, aligning India with global best practices.

Medium-Term Debt Strategy: The Centre targets a debt-to-GDP ratio of 50% (±1%) by FY31, enhancing fiscal credibility and policy predictability.

Rating Agencies’ Perspective: Global agencies such as S&P, Moody’s and Fitch consider high public debt a constraint on India’s sovereign rating, affecting borrowing costs.

Macroeconomic Rationale: Lower debt ratios can reduce interest outgo, freeing resources for infrastructure, social sectors, and capital formation.

Capex as the Engine of Economic Growth

Sustained Public Investment: Capital outlay has risen sharply from ₹3.08 lakh crore in FY19 to ₹12.22 lakh crore in FY27, reflecting a long-term infrastructure-led growth strategy.

Capex-to-GDP Stability: Central capex remains at 3.1% of GDP, indicating consistency despite fiscal consolidation pressures.

Crowding-in Effect: High public capex is expected to stimulate private investment, especially when corporate capex remains subdued.

Growth Multiplier Impact: Infrastructure spending has a higher fiscal multiplier compared to revenue expenditure, supporting both cyclical recovery and structural growth.

Sectoral Composition of Capital Expenditure

Transport Infrastructure Dominance: Roads and railways together account for nearly 65% of total capex, strengthening logistics efficiency and regional connectivity.

Roads and Highways: Allocation of ₹2.94 lakh crore in FY27 supports national highway expansion and last-mile connectivity.

Railways Modernisation: Railways receive ₹2.77 lakh crore, aiding freight corridors, electrification, and passenger safety.

Defence Capex: Defence capital outlay rises to ₹2.19 lakh crore, supporting indigenisation under Atmanirbhar Bharat.

Fiscal Consolidation and Borrowing Strategy

Gradual Deficit Reduction: Fiscal deficit is budgeted at 4.3% of GDP, down from 4.4% in FY26, reflecting a calibrated glide path.

Borrowing Requirements: Gross market borrowing for FY27 is estimated at ₹17.2 lakh crore, higher than FY26, necessitating careful debt management.

Quality of Spending: A declining RECO (Revenue Expenditure to Capital Outlay) ratio signals improving expenditure quality.

Policy Credibility: The government has emphasised gradualism to avoid growth shocks and maintain macroeconomic stability.

Role of Non-Tax Revenue: RBI Dividend and Disinvestment

Record RBI Surplus: RBI transferred a record ₹2.69 lakh crore surplus in FY26, becoming a critical fiscal support.

FY27 Projections: Total dividend from RBI, PSBs and financial institutions is estimated at ₹3.16 lakh crore.

Disinvestment Push: Disinvestment receipts are projected at ₹80,000 crore, with asset monetisation and REIT-based recycling of CPSE assets.

Fiscal Significance: Non-tax revenue is estimated at ₹6.66 lakh crore, reducing dependence on borrowings.

Fertiliser Subsidy Pressures and Fiscal Risks

Rising Subsidy Burden: Fertiliser subsidy for FY26 overshot BE by over ₹18,500 crore, reaching around ₹1.86 lakh crore.

Price Controls and Overuse: Urea prices have remained unchanged since 2012, leading to excess consumption and rising imports.

Import Dependence: Urea imports may exceed 10 million tonnes in FY26, amid stagnant domestic production.

External Vulnerabilities: Global price volatility, geopolitical tensions, and a weaker rupee pose fiscal risks for FY27.

Conclusion

The Union Budget 2026–27 balances growth imperatives with fiscal prudence by sustaining capex while transitioning to debt sustainability. Going forward, success will depend on crowding in private investment, rationalising subsidies, strengthening asset monetisation, and maintaining a credible fiscal glide path. A capex-driven yet fiscally responsible strategy remains central to India’s long-term macroeconomic stability.

EXPECTED QUESTION FOR UPSC CSE

Prelims MCQ

1. In Union Budget 2026–27, the primary fiscal anchor adopted by the Centre is:

(a) Revenue deficit

(b) Fiscal deficit

(c) Debt-to-GDP ratio

(d) Primary deficit

Answer: (c)