Scientists studying the Barbary Macaque population in Gibraltar have observed geophagy (soil eating) behavior. This is believed to help them counter the harmful effects of tourist provided junk food.
About Barbary Macaque
One of the 25 species of macaques worldwide
The only macaque species found outside Asia
The only non human primate in Europe and North Africa
Distribution
Native range:
Atlas Mountains in Algeria and Morocco
Introduced population: Gibraltar
IUCN Red List: Endangered
[2013] In which of the following states is lion-tailed macaque found in its natural habitat? 1 Tamil Nadu 2 Kerala 3 Karnataka 4 Andhra Pradesh Select the correct answer using the codes given below: (a) 1, 2 and 3 only (b) 2 only (c) 1, 3 and 4 only (d) 1, 2, 3 and 4
Recent research across global institutions is advancing the field of Cyborg Botany, where scientists are transforming plants into living electronic systems capable of sensing and transmitting data.
What is Cyborg Botany
A hybrid system integrating living plants with electronic components
Combines:
Biology
Materials Science
Engineering
Derived from the term “cyborg” (cybernetic organism)
Aim: Merge natural plant processes with artificial electronic functions
How it Works
Embedding Nanowires and Transistors
Inserted into plant cell walls
Act as biosensors
Detect biochemical changes in real time
Conductive Polymers (Living Wires)
Example: PEDOT (Poly 3,4 ethylenedioxythiophene)
Functions as electrical pathways inside plant tissues
Transmits signals from plant cells to external devices
Key Concept
Biosensor: A device that uses biological material to detect changes and produce signals
Types of Plant Stress (Important for Prelims)
Biotic Stress
Caused by living organisms
Example: pests, diseases
Abiotic Stress
Caused by environmental factors
Example: drought, temperature extremes
Significance
Enables early detection of crop stress before visible symptoms
Helps in precision agriculture
Reduces water and chemical usage
Improves crop productivity and sustainability
Supports climate resilient agriculture
[2020] With reference to carbon nanotubes, consider the following statements: 1 They can be used as carriers of drugs and antigens in the human body. 2 They can be made into artificial blood capillaries for an injured part of human body. 3 They can be used in biochemical sensors. 4 Carbon nanotubes are biodegradable. Select the correct answer using the code given below: (a) 1 and 2 only (b) 2, 3 and 4 only (c) 1, 3 and 4 only (d) 1, 2, 3 and 4
India’s Industrial Output Growth, measured by the Index of Industrial Production (IIP), slowed to 4.1 percent in March 2026, marking a five month low. The slowdown is linked to weak performance in construction and consumer sectors and the emerging impact of the West Asia crisis.
What is Index of Industrial Production (IIP)?
A composite indicator measuring short term changes in industrial output
Released by the Ministry of Statistics and Programme Implementation
Base year: 2011 to 12
Published monthly
Components of IIP
Primary Goods
Capital Goods
Intermediate Goods
Infrastructure and Construction Goods
Consumer Durables
Consumer Non Durables
Key Highlights from Data
IIP Growth (March 2026): 4.1 percent
Manufacturing Growth: 4.3 percent
Capital Goods Growth: 14.6 percent (29 month high)
Infrastructure and Construction: 6.7 percent (slowed)
Consumer Non Durables: 1.1 percent (weak demand)
Core Sector Growth: -0.4 percent (contraction)
About Core Industries
Eight core sectors account for about 40 percent of IIP
[2015] In the ‘Index of Eight Core Industries’, which one of the following is given the highest weight? (a) Coal Production (b) Electricity generation (c) Fertilizer production (d) Steel production
The United Arab Emirates has announced its decision to exit the Organization of the Petroleum Exporting Countries effective May 1, 2026. The move is significant as the UAE is one of the major oil producers, and its exit is expected to weaken the cartel’s influence over global oil prices.
About OPEC
Established in 1960
Headquarters: Vienna, Austria
Objective:
Coordinate petroleum policies among member countries
Stabilize oil markets
Ensure fair prices for producers and steady supply
As of May 1, 2026, the Organization of the Petroleum Exporting Countries (OPEC) consists of 11 members following the exit of the United Arab Emirates (UAE).
The remaining member countries are Algeria, Congo, Equatorial Guinea, Gabon, Iran, Iraq, Kuwait, Libya, Nigeria, Saudi Arabia, and Venezuela
Non-OPEC “Plus” Members (10): Azerbaijan, Bahrain, Brunei, Kazakhstan, Malaysia, Mexico, Oman, Russia, South Sudan, and Sudan.
Key Facts About the UAE’s Exit
UAE was the third largest producer in OPEC
Producing around 3.4 million barrels per day
Production capacity up to 5 million barrels per day
Also exiting OPEC+ grouping
Joined OPEC in 1967 (via Abu Dhabi)
Reasons for Exit
Disagreement over production quotas
UAE wants to increase oil output after heavy investments
Strategic economic shift toward maximizing energy exports
Geopolitical tensions with Saudi Arabia
Weakening cohesion within OPEC (example: Qatar exited in 2019)
Global Context
Ongoing conflict involving Iran has impacted oil supply
Closure of the Strait of Hormuz affects global oil transport
Brent crude prices above 111 dollars per barrel
United States now produces more oil than any OPEC country
Impact of UAE Exit
Reduces OPEC’s spare production capacity
Weakens cartel’s ability to control oil prices
May lead to greater market volatility
Strengthens non-OPEC producers’ influence
Significance for India
India is a major oil importer
Changes in oil prices affect:
Inflation
Fiscal deficit
Energy security
[2009] Other than Venezuela, which one among the following from South America is a member of OPEC? (a) Argentina (b) Brazil (c) Ecuador (d) Bolivia
It will be a 45 minute session, post which we will open up the floor for all kinds of queries which a beginner must have. No questions are taboo and Rohin sir is known to be patiently solving all your doubts.
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PYQ Relevance[UPSC 2020] Discuss the role of the Election Commission of India in the light of the evolution of the Model Code of Conduct. Linkage: The question examines the scope and limits of ECI’s powers in ensuring free and fair elections. The article highlights concerns of constitutional overreach by ECI in voter roll purges, directly questioning its mandate and procedural fairness.
Mentor’s Comment
The issue of electoral roll purges has emerged as a major constitutional concern following the Election Commission of India’s (ECI) Special Intensive Revision (SIR) in states like Assam, Kerala, Tamil Nadu, West Bengal, and Puducherry. What makes this significant is the scale and nature of voter deletion. There are reports of lakhs of genuine voters being removed, including 91 lakh in West Bengal and 64 lakh in Bihar, many categorized under the vague term “logical discrepancy.” This marks a sharp deviation from past practices where revisions were limited, transparent, and conducted well before elections.
Does the ECI have the constitutional authority to determine citizenship?
Article 324 Limitation: Empowers ECI to conduct elections, not determine citizenship; this power lies with the Union government.
Home Ministry Mandate: Citizenship laws are administered by the Union Home Ministry, which must notify valid documents.
Jurisdictional Overreach: ECI prescribing documents for citizenship proof exceeds its constitutional scope.
Judicial Gap: Supreme Court did not decisively address this separation of powers issue.
Why is the Special Intensive Revision (SIR) being criticised?
Procedural Deviation: Conducted in election-bound states, violating norms of pre-election summary revisions.
Intensive Nature: SIR requires fresh enumeration instead of updating existing rolls, making it disruptive.
Time Constraints: Conducted within months before elections, compromising thorough verification.
Past Practice Contrast: Earlier revisions were gradual and inclusive; SIR appears abrupt and exclusionary.
How does the documentation requirement affect voter inclusion?
Document Exclusion: Aadhaar, ration card, voter ID not accepted as proof of citizenship.
Mass Deletions: Example: 91 lakh voters removed in West Bengal due to inability to produce documents.
Administrative Burden: Citizens forced into repeated verification cycles.
Does the categorisation of “logical discrepancy” violate legal norms?
Undefined Term: No legal basis under Representation of the People Act or Registration of Electors Rules.
Arbitrary Classification: Allows subjective deletion without clear criteria.
Transparency Deficit: Lack of publicly defined parameters reduces accountability.
Impact on Rights: Leads to disenfranchisement without due process.
Are principles of natural justice being violated?
Denial of Hearing: Deletions reportedly carried out without prior notice or opportunity to respond.
Statutory Violation: Contravenes provisions ensuring verification and objections.
Electoral Fairness: Free and fair elections compromised when voters are excluded arbitrarily.
Judicial Concern: Courts expected to safeguard procedural fairness.
How does this impact democratic representation?
Mass Exclusion: Large-scale deletions distort electoral outcomes.
Voter Suppression Risk: Marginalized groups disproportionately affected.
Trust Deficit: Reduces confidence in electoral institutions.
Systemic Bias Potential: Selective deletion may influence political outcomes.
Conclusion
The electoral roll revision controversy highlights the tension between administrative efficiency and constitutional safeguards. Ensuring inclusion, transparency, and legal compliance remains essential to uphold democratic legitimacy.
India’s agricultural system is facing a structural vulnerability as rising global fossil fuel disruptions are directly impacting fertiliser availability, diesel prices, and farm mechanisation. While the Green Revolution ensured food security, it also locked Indian agriculture into fossil fuel-dependent inputs. Strikingly, tractor numbers have surged from 5,000 (1946-47) to over 12 million, while draught animal power collapsed to just 2.3%. This exposes how deeply “fossilisation” has replaced traditional resilience. With India importing key fertiliser inputs and relying heavily on global energy markets, even distant crises (e.g., West Asia disruptions) now threaten domestic food security, making this a systemic and growing risk.
How has Indian agriculture transitioned from traditional to fossil-fuel dependence?
De-bullockisation: Decline of draught animals from 80.8 million (1972) to 34.8 million (2019); reduced reliance on animal power.
Mechanisation surge: Tractor numbers increased to 12 million, replacing manual and animal labour.
Energy transition: Farm power shifted from animal-based to mechanical (1991-92) and later to electrical dominance.
Irrigation shift: Replacement of Persian wheels with diesel/electric pumps.
Outcome: Ensures higher productivity but increases dependence on fossil energy.
Why is fertiliser production highly vulnerable to fossil fuel shocks?
Feedstock dependence: Natural gas serves as primary input for nitrogen fertilisers.
Import reliance: India imports ammonia, urea inputs, and phosphatic fertilisers.
Input linkage: Naphtha and petroleum derivatives used in fertiliser production.
Supply chain exposure: Strait of Hormuz disruptions affect fertiliser imports.
Outcome: Creates direct linkage between global energy markets and domestic food security.
How did the Green Revolution embed fossil fuel dependency?
Input-intensive farming: Heavy reliance on chemical fertilisers like urea, DAP, MOP.
Crop protection chemicals: Increased use of pesticides derived from petrochemicals.
High-yield varieties: Require intensive fertiliser and irrigation inputs.
NPK consumption rise:32.9 million tonnes, dominated by urea and DAP.
Outcome: Ensures foodgrain surplus but increases systemic vulnerability.
What are the macroeconomic and food security implications?
Imported inflation: Rising energy prices increase fertiliser and diesel costs.
Subsidy burden: Government faces fiscal pressure due to fertiliser subsidies.
Supply shocks: Export restrictions by major suppliers (e.g., China) worsen shortages.
Price volatility: Global conflicts trigger domestic input cost spikes
Outcome: Weakens agricultural resilience and threatens price stability.
How has farm power composition changed over time?
1961-62: Total power ~39.99 million kW (animal-dominated).
1991-92: Mechanical power overtakes animate sources.
2024-25: Total power reaches 550.82 million kW, with electrical dominance.
Decline of animals: Share reduced to 2.3% of total farm power.
Outcome: Strengthens efficiency but eliminates traditional buffers.
What are the emerging risks from fossil fuel dependence in agriculture?
Geopolitical risk: Conflicts disrupt fertiliser and fuel supply chains.
India’s agricultural success is structurally tied to fossil fuel-based inputs. Future resilience requires diversification toward renewable energy, organic inputs, and reduced import dependence.
PYQ Relevance
[UPSC 2020] “What are the main factors responsible for making rice-wheat system a success? In spite of this success how has this system become bane in India?”
Linkage: It examines the input-intensive Green Revolution model and its sustainability concerns. The article shows how fossil fuel dependence has made this model vulnerable to global shocks.
India and New Zealand signed a ‘historic’ Free Trade Agreement, signalling a major breakthrough after years of limited trade engagement. The deal is significant due to its speed of negotiation, high tariff elimination (up to 95% of exports), and strategic diversification beyond traditional partners. It contrasts with earlier cautious trade approaches, reflecting India’s renewed push for high-quality FTAs.
How do current India-New Zealand bilateral dynamics enhance the strategic depth of their economic partnership?
Regional Significance: Positions New Zealand as India’s second-largest trading partner in Oceania; ensures strategic foothold in a relatively under-engaged region.
Diaspora Bridge: Includes ~300,000 persons of Indian origin (approx. 5% of NZ population); strengthens cultural connect and facilitates trade demand, business networks, and trust-based engagement.
FTA Foundation: Builds on an existing socio-economic base of growing trade and people-to-people ties; ensures faster realisation of FTA gains.
Merchandise Trade Growth: Expands from USD 873 million (2023-24) to USD 1.3 billion (2024-25); reflects 49% increase, indicating strong momentum.
Export Performance: Strengthens India’s position with USD 711 million exports (2024-25); registers 32% growth, sustaining upward trajectory.
Services Expansion: Increases services exports to USD 634 million (2024) with 13% growth; driven by IT, travel, and business services, indicating diversification.
Long-term Trade Trend: Demonstrates steady rise from USD 855 million (2015-16) to USD 1,298 million (2024-25); reflects structural strengthening of ties.
Favourable Trade Balance: Ensures India’s advantage with 130% export growth vs 7.21% import growth over a decade; maintains positive trade balance in 2024-25.
What are the key features of the India–New Zealand FTA?
Full Export Liberalisation: Eliminates duty on 100% of Indian exports; ensures comprehensive market access across sectors.
Investment Commitment: Secures USD 20 billion investment over 15 years; strengthens long-term economic and strategic cooperation.
Agricultural Productivity Partnership: Enhances farm productivity and integrates farmers into global value chains; supports agri-modernisation.
MSME and Employment Boost: Provides zero-duty access for labour-intensive sectors such as textiles, apparel, leather, footwear, gems & jewellery, engineering goods, and processed foods; ensures job creation.
Market Access Structure: Covers 70.03% of tariff lines for liberalisation, while 29.97% kept in exclusion, accounting for 95% of New Zealand’s bilateral trade; balances openness with protection.
Immediate Tariff Elimination: Applies to 30% of tariff lines, including wood, wool, sheep meat, raw hides; enables quick gains.
Phased Tariff Reduction: Covers 35.60% of tariff lines over 3, 5, 7, and 10 years; includes petroleum oils, malt extract, vegetable oils, machinery, peptones; ensures gradual adjustment.
Partial Tariff Reductions: Applies to 4.37% of products such as wine, pharmaceuticals, polymers, aluminium, iron & steel articles; enhances competitiveness.
Tariff Rate Quotas (TRQs): Covers 0.06% of products, including Mānuka honey, apples, kiwi fruit, albumins; regulates limited imports.
What are the gains to India from the India-New Zealand FTA?
Industrial and Trade Gains
Full Market Access: Ensures duty-free access for 100% of India’s exports; expands export potential across all tariff lines.
Cost Efficiency: Secures duty-free inputs such as wooden logs, coking coal, and metal scrap; reduces production costs and enhances competitiveness.
Global Value Chain Integration: Facilitates manufacturing linkages for MSMEs in textiles, chemicals, electronics, and food processing; ensures deeper integration.
Capacity Building: Provides export readiness programmes and trade information access; strengthens MSME competitiveness.
Ecosystem Linkages: Connects Indian MSMEs with New Zealand’s SME ecosystem; enhances collaboration.
Inclusive Growth: Supports start-ups and enterprises led by women and youth; promotes equitable economic participation.
Agriculture and Farmer-Centric Gains
Productivity Enhancement: Implements Action Plans for kiwifruit, apples, and honey; improves quality and yield.
Technology Transfer: Establishes Centres of Excellence, improved planting material, and technical support for orchard management and post-harvest practices.
Research Collaboration: Enables joint research, capacity building, and supply chain strengthening; enhances agri-efficiency.
Farmer Income Growth: Improves production standards and market linkages; increases income potential.
Balanced Market Access: Allows limited imports (apples, kiwifruit, Mānuka honey) via Tariff Rate Quotas (TRQs) with safeguards; protects domestic farmers.
Sectoral Coverage: Expands cooperation across horticulture, apiculture, forestry, livestock, fisheries, and wine sector.
Services and New-Economy Opportunities
Services Access: Secures commitments in 118 sectors with MFN treatment in 139 sectors; expands services exports.
AYUSH Globalisation: Enables trade in Ayurveda, Yoga, and traditional medicine; strengthens India’s wellness economy and medical value travel.
Sectoral Expansion: Enhances opportunities in IT, healthcare, education, and business services.
Mobility and Human Capital Gains
Student Mobility: Allows 20-hour work per week during study; provides post-study work visas (3-4 years depending on qualification).
Professional Access: Introduces Temporary Employment Entry (TEE) visa (quota: 5,000, up to 3 years); covers sectors like IT, engineering, healthcare, AYUSH, chefs, music teachers.
Youth Mobility: Enables 1,000 Working Holiday Visas annually; allows 12-month multiple-entry stay.
Skill Development: Ensures global exposure for Indian youth and professionals; enhances human capital.
Economic Diversification: Expands engagement with a high-income developed market; reduces dependence on traditional partners.
Soft Power Expansion: Promotes Indian culture, wellness systems, and skilled workforce globally.
What concerns and exclusions remain within the agreement?
Agricultural Sensitivity: Dairy, meat, and horticulture products excluded; reflects domestic political economy concerns.
Limited Coverage: Some sectors like sheep meat and apples excluded; restricts full liberalisation.
Implementation Dependency: Requires ratification by New Zealand Parliament.
Adjustment Costs: Domestic industries may face competition in select sectors.
Trade Imbalance Risk: Potential widening if imports outpace exports.
How does the FTA align with India’s broader trade policy shift?
FTA Strategy Reset: Moves away from protectionism toward calibrated openness.
Integration with Global Value Chains: Supports “Make in India” through export linkages.
Precedent Setting: Adds to recent FTAs with Australia, UAE; strengthens credibility.
Economic Diplomacy: Positions India as a reliable trade partner.
Indo-Pacific Focus: Enhances economic footprint in the region.
Conclusion
The India-New Zealand FTA reflects a strategic recalibration of India’s trade policy, combining economic pragmatism with geopolitical alignment. Its success will depend on effective implementation, domestic capacity building, and leveraging new market opportunities.
PYQ Relevance
[UPSC 2024] Critically analyse India’s evolving diplomatic, economic and strategic relations with the Central Asian Republics (CARs) highlighting their increasing significance in regional and global geopolitics
Linkage: The PYQ tests analysis of India’s bilateral economic and strategic partnerships, directly applicable to India-New Zealand FTA and trade relations. Current article highlights trade growth, diaspora role, and FTA-led economic integration, similar to evolving bilateral engagement patterns asked in PYQ.
Francis Xavier, the patron saint of Goa, is in the news following a controversy involving alleged derogatory remarks by a YouTuber, which led to protests and raised concerns about communal harmony in Goa.
Key Facts About St Francis Xavier
Born in Spain in 1506
One of the founding members of the Society of Jesus (Jesuit Order)
Arrived in Goa in 1542 during Portuguese rule
Mission: Spread and restore Christianity among settlers
Death and Relics
Died in 1552 on Shangchuan Island (off China)
Body brought to Goa in 1554
Mortal remains preserved in the Basilica of Bom Jesus since 1624
Considered “incorruptible” as it showed minimal decay
Religious and Cultural Significance
Revered as “Goencho Saib” (Lord of Goa)
Central figure in Goan Catholic identity
Associated with pilgrimage tourism and heritage
Exposition of St Francis Xavier
Held once every 10 years
Relics are displayed for public veneration
Duration: Around 45 days
Relics moved to Se Cathedral
Historical Context
Goa was a Portuguese colony during his arrival
Linked to spread of Christianity in India
His role is sometimes debated in relation to the Goa Inquisition
[2021] Consider the following statements: 1 St. Francis Xavier was one of the founding members of the Jesuit Order. 2 St. Francis Xavier died in Goa and a church is dedicated to him there. 3 The Feast of St. Francis Xavier is celebrated in Goa each year. Which of the statements given above are correct? (a) 1 and 2 only (b) 2 and 3 only (c) 1 and 3 only (d) 1, 2 and 3
A recent study published in the journal Science has reported a breakthrough in CAR T-cell therapy, where scientists developed a highly sensitive receptor capable of detecting faint tumour signals, potentially enabling treatment of solid cancers such as kidney and ovarian cancer.
What is CAR T-cell Therapy (Chimeric Antigen Receptor T-cell Therapy)?
A form of immunotherapy where a patient’s T-cells are genetically modified to identify and destroy cancer cells
Existing Limitation
Effective mainly in blood cancers like leukemia and lymphoma
Limited success in solid tumours due to
Antigen Heterogeneity
Tumour cells vary in protein expression
Some cells remain undetectable to CAR T-cells
Note: An antigen is any substance—such as bacteria, viruses, toxins, or foreign proteins—that causes the immune system to produce antibodies or mount a specific defense response
Key Discovery
Target protein: CD70
Found in
70 to 80 percent of kidney and ovarian cancers
Around 25 percent of pancreatic cancers
Many tumour cells thought to lack CD70 actually contain it in very low quantities
New Innovation
HIT Receptor (HLA Independent T-cell Receptor): engineered immune receptors that enable T cells to target cancer cells without requiring HLA matching.
Detects very low levels of tumour antigens
Works by linking detection directly to the natural T-cell activation pathway
Bypasses the HLA system
Results of Study
Conventional CAR T-cells failed to eliminate all tumour cells
HIT receptor based T-cells:
Eliminated hidden tumour cells
Achieved complete tumour removal in experimental models
Safety Concerns
High sensitivity may attack normal cells
Known as Goldilocks Challenge
CD70 mostly absent in vital organs like Heart, Lungs, and Brain
Minor effects observed in immune cells
[2022] Which one of the following statements best describes the role of B cells and T cells in the human body? (a) They protect the body from environmental allergens. (b) They alleviate the body’s pain and inflammation. (c) They act as immunosuppressants in the body. (d) They protect the body from the diseases caused by pathogens.
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