Content
- Primary Amoebic Meningoencephalitis (PAM)
- Nominated Members in Legislatures
- Toll Collection Practices in India
- Ethanol Blending in Petrol
- Creamy Layer in OBC Reservation
- Nationalists in Ireland, India: How a Future Indian President was Inspired
The Disease: Primary Amoebic Meningoencephalitis (PAM)
- Causative Agent:
- Caused by Naegleria fowleri (a free-living, thermophilic amoeba).
- Commonly found in warm freshwater (ponds, lakes, poorly maintained swimming pools, stagnant water).
- Mode of Transmission:
- Amoeba enters the human body through the nose while swimming, bathing, or diving in contaminated water.
- Reaches the brain through the olfactory nerve (cribriform plate).
- Not transmitted person-to-person.
- Pathophysiology:
- Amoeba invades the central nervous system → acute inflammation of brain and meninges.
- Causes Primary Amoebic Meningoencephalitis (PAM) → often fatal.
Relevance : GS 2(Health), GS 3(Science and Technology)
Symptoms & Clinical Course
- Incubation period: 5–10 days after exposure.
- Early Symptoms:
- Severe headache, fever, nausea, vomiting.
- Stiff neck, photophobia (light sensitivity).
- Children: refusal to eat, irritability, lethargy.
- Progressive Symptoms:
- Confusion, altered behavior.
- Seizures, epilepsy.
- Memory loss, fainting.
- Coma → death (usually within 1–2 weeks of symptom onset).
- Mortality: Extremely high (95–99%), with very few survivors globally.
Risk Factors
- Swimming or bathing in stagnant or warm freshwater (especially during summer).
- Children at higher risk (due to thinner cribriform plate → easier entry to brain).
- Ear/nose surgeries or injuries may increase susceptibility.
- No risk from drinking contaminated water (infection occurs only through nose).
Recent Outbreak in Kerala
- Kozhikode (2024): 3 cases detected, 1 death reported.
- Previous local outbreaks in Kerala had led to warning boards near ponds to alert public.
- Current alert: Issued by Kerala Health Department to raise awareness and encourage precaution.
Preventive Measures
- Avoid swimming or bathing in stagnant/unclean ponds, lakes, and warm water bodies.
- Use nose clips while swimming to prevent water entry.
- Ensure chlorination and cleaning of public water sources and swimming pools.
- People with nasal/ear surgeries should avoid exposure to stagnant water.
- Public awareness campaigns: leaflets, boards near ponds, media outreach.
Treatment Challenges
- No single guaranteed cure.
- Drugs used (in combinations):
- Amphotericin B, Miltefosine, Azoles (Fluconazole, Ketoconazole).
- Treatment effective only if started very early.
- Supportive care (ICU, ventilator support) often required.
Broader Public Health Concerns
- Rarity but Deadliness: Cases are rare, but nearly always fatal → high fear factor.
- Climate Change Link: Rising temperatures and water stagnation may increase risk.
- Surveillance & Rapid Diagnosis:
- Need early identification at hospitals.
- Train health workers to recognize neurological symptoms after water exposure.
Bottom Line:
- PAM is a rare but almost always fatal brain infection caused by Naegleria fowleri.
- Kerala’s alert in Kozhikode is precautionary due to recent cases and a death.
- Preventive steps (avoiding stagnant water, using nose clips, awareness campaigns) are critical, as treatment options are limited and survival rates are very low.
Nominated Members in Legislatures
Constitutional Provisions:
- Parliament: 12 nominated members in Rajya Sabha (by President on aid & advice of Union Council of Ministers).
- State Assemblies: Earlier, Governors nominated one Anglo-Indian MLA (now abolished in 2020).
- Legislative Councils: Nearly 1/6th of members are nominated by Governors (on advice of State Council of Ministers).
- Principle:
- Nomination exists to bring in experts, minority/community representation, or to supplement elected members.
- But always on aid & advice of elected executive, ensuring accountability.
Relevance : GS 2(Polity and Constitution)
Union Territories with Assemblies
- Delhi (GNCTD Act, 1991):
- 70 elected MLAs, no nominated members.
- Puducherry (Government of UT Act, 1963):
- 30 elected MLAs + up to 3 nominated by Union government.
- Controversy: Union govt nominates directly, bypassing UT Council of Ministers.
- J&K (J&K Reorganisation Act, 2019, amended 2023):
- 90 elected seats.
- LG may nominate up to 5 members:
- 2 women,
- 2 Kashmiri migrants,
- 1 displaced person from Pakistan-occupied Kashmir.
Case Law & Judicial Rulings
- Puducherry (K. Lakshminarayanan v. Union of India, 2018 – Madras HC):
- Held: Union govt can nominate 3 MLAs to Puducherry Assembly without UT Cabinet advice.
- Recommended statutory clarity, but Supreme Court later set aside these recommendations.
- Delhi (GNCTD v. Union of India, 2023 – SC Constitution Bench):
- Introduced “Triple Chain of Command” principle:
- Civil servants accountable to Ministers.
- Ministers accountable to Legislature.
- Legislature accountable to People.
- Ensures democratic accountability → LG bound by aid & advice of Council of Ministers (except in subjects outside Delhi Assembly’s legislative domain).
- Though about services, rationale extends to nominations: LG should act with Cabinet’s advice to maintain democratic chain.
- Introduced “Triple Chain of Command” principle:
Current Controversy: J&K
- Union Home Ministry’s stand (2024 affidavit):
- LG can nominate 5 members without aid & advice of J&K Council of Ministers.
- Democratic Concerns:
- Risks undermining popular mandate, especially in a small Assembly (90 elected).
- Nominated MLAs can swing majority/minority balance → undemocratic if done by Union govt/ LG alone.
Why It Matters
- Federal Balance:
- UTs with Assemblies (Delhi, Puducherry, J&K) are hybrid — not full States, but with elected governments.
- Direct Union control via LG nominations risks weakening local democracy.
- Political Neutrality:
- When ruling party at Centre ≠ ruling party in UT, nomination power can be weaponised to influence Assembly outcomes.
- J&K’s Special Case:
- Was a State till 2019, with even greater autonomy.
- SC upheld reorganisation, but Govt assured early restoration of statehood.
- Therefore, democratic principles must be safeguarded → LG should nominate only on Cabinet advice.
Way Forward: How Should Nominations Be Done?
- For J&K Assembly:
- LG should exercise power only on aid & advice of UT Council of Ministers (once elected).
- Aligns with SC’s triple chain of command principle.
- Prevents manipulation of Assembly arithmetic.
- For Puducherry Assembly (Govt of UT Act, 1963):
- Parliament should amend law to mandate that Union govt/ LG act on UT Cabinet’s advice.
- Brings practice in line with democratic accountability.
- For All UTs with Assemblies:
- Clear statutory framework on:
- Who nominates,
- On whose advice,
- Criteria for nomination (minorities, women, expertise).
- Prevents arbitrary use of nomination powers.
- Clear statutory framework on:
Bottom Line:
- Who decides nominations? → Constitutionally, nominations are made by President/Governors/LGs, but always on aid & advice of elected governments (except where law explicitly allows Centre’s discretion).
- J&K Assembly nominations should be by LG on advice of Council of Ministers, to preserve democracy.
- Puducherry (1963 Act) allows Union govt direct nomination (problematic).
- SC’s 2023 “Triple Chain of Command” principle reinforces that unelected authorities (LG, Union govt) should not bypass elected executives in democratic functioning.
Toll collection practices in India
Basics of Toll Collection
- Legal Basis:
- National Highways Act, 1956 → empowers GoI to levy fees (Section 7) and make rules (Section 9).
- Current framework: National Highways Fee (Determination of Rates and Collection) Rules, 2008.
- Models of Collection:
- Publicly funded highways → toll collected by GoI/NHAI.
- Build Operate Transfer (BoT) → concessionaire collects till investment recovered + concession period.
- Toll-Operate-Transfer (ToT) / InvIT models → private players operate & collect toll.
- Fee Structure:
- Base rates fixed in 2008.
- Escalation: +3% annually + 40% of WPI increase.
- Not linked to actual cost recovery or quality of service.
- Revenue Trend:
- ₹1,046 crore (2005–06) → ₹55,000 crore (2023–24).
- Of this, ~₹25,000 crore goes to Consolidated Fund of India, balance to concessionaires.
- Toll is now seen as a perpetual revenue stream, not just cost-recovery.
Relevance : GS 2(Governance)

Problems in Current Tolling Regime
- Perpetual Tolling:
- Even after capital costs are recovered, tolling continues indefinitely (due to 2008 amendment).
- Creates “double taxation” feeling since users also pay high road/cess on fuel.
- Transparency Issues:
- No independent authority to evaluate if toll rates are justified.
- Annual hikes are automatic, not linked to road quality, maintenance, or service delivery.
- Equity Concerns:
- Toll is a regressive tax: affects poorer daily commuters disproportionately.
- No concessions during road expansion/construction phases, despite reduced usability.
- Operational Inefficiencies:
- FASTag rollout improved things, but queues persist due to:
- faulty scanners,
- insufficient lanes,
- inadequate top-up/recharge facilities on site.
- FASTag rollout improved things, but queues persist due to:
- Trust Deficit:
- Users perceive toll as a permanent government rent rather than a genuine cost-recovery mechanism.
Key PAC Recommendations
- End Perpetual Tolling:
- Toll should end once project cost + O&M costs are recovered.
- Any extension must be justified and approved by a new independent regulator.
- Independent Regulatory Authority:
- Oversee toll determination, collection, and escalation.
- Ensure fair pricing, transparency, and accountability.
- Reimburse Users During Construction:
- If widening/repair work disrupts traffic, commuters should get reduced or refunded toll.
- Reform Escalation Formula:
- Move beyond flat +3% + partial WPI indexation.
- Link hikes to actual O&M costs, road quality benchmarks, and vehicle operating costs.
- Improve FASTag Functionality:
- On-location services at plazas for recharge/replacement.
- Address scanner and connectivity issues to reduce congestion.
Global Comparisons
- Developed Economies:
- US, EU → tolls are typically project-specific, end after debt recovery, or replaced by road-use taxation.
- Transparent public audits of toll revenues.
- China:
- Heavily tolled network; clear sunset clauses after debt recovery, though extension common in practice.
- Brazil & Mexico:
- Mixed concession models but linked to service guarantees (lane availability, safety, emergency services).
India’s perpetual tolling model is more revenue-driven than service-driven.
Science & Economics of Tolling
- Economic Rationale:
- User-pays principle → those who benefit should pay.
- Efficient in theory but inequitable in practice if poorly regulated.
- Issues with Perpetual Tolling:
- Becomes a hidden tax beyond cost recovery.
- Erodes public trust → leads to evasion, protests, and resistance.
- Technology Solutions:
- GPS-based tolling (already piloted in EU, Singapore): pay-per-km, avoids bottlenecks, fairer distribution.
- Dynamic pricing based on congestion and road quality.
Way Forward: Suggested Reforms
- Policy Reforms:
- Roll back perpetual tolling amendment.
- Legally mandate sunset clauses post cost-recovery.
- Mandate value-for-money audits of highways.
- Institutional Reform:
- Independent toll regulator under NHAI/NITI Aayog.
- Public reporting of toll revenue, O&M expenditure, debt repayment.
- Technological Reform:
- GPS-based tolling to replace physical plazas (reduces leakage & congestion).
- Full FASTag integration with seamless top-up, auto-deductions, digital complaint redressal.
- Equity Safeguards:
- Discounts for frequent commuters, public transport, and local residents.
- Temporary toll suspension or reduction during construction phases.
Ethanol Blending in Petrol
Context and Policy Goals
- Govt. target: 20% ethanol blending (E20) by 2025.
- Objectives:
- Energy security → reduce crude oil imports (India imports ~85% of crude needs).
- Carbon emission reduction → lower GHGs.
- Rural income boost → new market for sugarcane, maize, rice, and agricultural residues.
- Waste utilisation → use of damaged food grains and crop residues.
Relevance : GS 3(Environment and Ecology , Science and Technology)

Scientific Basis of Ethanol
- Nature: Ethanol (C₂H₅OH) – an oxygenated biofuel.
- Production:
- From sugarcane/molasses via yeast fermentation.
- From food grains (maize, rice, broken grains).
- From lignocellulosic biomass (non-food crop residues – cellulose, hemicellulose, lignin).
- Process:
- Sugars → glucose (invertase) → ethanol + CO₂ (zymase).
- Key property: Hygroscopic (absorbs water), influencing corrosion and storage.
Energy Efficiency of Ethanol vs Petrol
- Calorific Value (CV):
- Petrol: ~43 MJ/kg.
- Ethanol: ~27 MJ/kg (≈35% lower).
- Implication → lower mileage per litre.
- Octane Number (ON):
- Petrol: 87–91.
- Ethanol: ~108.
- Higher ON → better resistance to knocking, smoother combustion.
- Net Result:
- Slight mileage drop at E20 (~2–4%).
- Noticeable only at E100 (100% ethanol).
Vehicle Impact – Scientific Concerns
- Hygroscopic Effect:
- Water absorption → rusting of tanks, clogging of fuel lines, reduced efficiency.
- Material Compatibility:
- Ethanol corrodes rubber and plastic components in older vehicles (fuel pipes, gaskets, injectors).
- Stoichiometric Ratio (Air–Fuel mix):
- Ethanol adds oxygen → alters combustion chemistry.
- Requires recalibration of spark timing and ECU (Electronic Control Unit).
- Engine Types:
- Modern BS-IV & BS-VI vehicles (post-2020): ECU-controlled → can adapt to E20.
- Older carbureted vehicles (pre-2020): No ECU → cannot be retrofitted easily.
Environmental & Emission Effects
- Positives:
- Reduced CO, NOx, and particulate emissions due to oxygen-enriched combustion.
- Lower lifecycle CO₂ if biomass sustainably sourced.
- Negatives:
- Land-use shift → possible diversion of food crops to fuel.
- High water footprint of sugarcane → aggravates groundwater depletion.
- Possible indirect emissions from fertilisers, transport, and processing.
Maintenance and Cost Concerns
- Govt. claim: Only one-time replacement of rubber components needed.
- Experts’ warning:
- Corrosion more severe in cold regions (moisture condenses).
- Regular servicing and higher maintenance costs inevitable for older vehicles.
- Recalibration of engines → increases manufacturing cost for auto industry.
International Experience
- Brazil:
- Started in 1970s (Proálcool programme).
- Currently runs on E27 + widespread use of flex-fuel vehicles.
- Transition was gradual, with subsidies, infrastructure, and farmer-industry linkages.
- USA:
- Large-scale corn ethanol production, but criticized for food vs fuel conflict.
- India’s challenge: Compressed timeline (2021 → 2025), unlike Brazil’s decades-long transition.
Science-Driven Challenges for India
- Agronomic:
- Heavy reliance on sugarcane → water-intensive (3,000–5,000 litres water per litre ethanol).
- Risk of food vs fuel diversion if maize/rice used extensively.
- Technological:
- Lack of widespread flex-fuel engine technology.
- Insufficient 2G ethanol production (from agri-waste).
- Infrastructure:
- Ethanol blending needs separate pipelines/storage tanks (due to hygroscopic nature).
- Higher transport costs for ethanol from rural production sites to refineries.
- Economic:
- High production cost of ethanol vs subsidised petrol.
- Fiscal burden of incentives/subsidies to sugar mills & distilleries.
Scientific Verdict
- Strengths:
- Cleaner combustion (less CO, PM).
- Energy diversification, import reduction.
- Adds rural economic value, waste-to-fuel potential.
- Weaknesses:
- Lower energy density → mileage drop.
- Corrosion/moisture issues in older vehicles.
- Water-intensive crops (sugarcane).
- Limited readiness of Indian vehicles for E20.
Way Forward
- Diversify feedstock: Promote 2G ethanol (crop residues, agri-waste, bamboo).
- Technology adoption: Encourage flex-fuel vehicles (as in Brazil).
- Agricultural reforms: Shift away from water-guzzling sugarcane → maize, sorghum, cellulosic biomass.
- Infrastructure: Invest in ethanol storage, blending, distribution systems.
- Policy pacing: Gradual transition (E10 → E12 → E15 → E20) with simultaneous vehicle adaptation.
- R&D push: Develop corrosion-resistant materials and better engine calibration technologies.
Creamy Layer in OBC Reservation – Debate on “Equivalence”
Basic Concepts
- Reservation in India:
- Based on Articles 15(4), 16(4), and 340 (Constitution) → for socially and educationally backward classes (SEBCs), SCs, and STs.
- Aim: Correct historical injustices, ensure representation in education, employment, and politics.
- Creamy Layer (CL):
- Concept introduced by Indra Sawhney Case (1992).
- Ruling: Reservation benefits should not go to the “advanced sections” among OBCs, i.e., those with higher income, social capital, or government positions.
- Purpose: Ensure benefits reach the most disadvantaged, not the relatively privileged within OBCs.
Relevance : GS 2(Governance ,Social Issues)
Indra Sawhney Judgment (1992)
- Upheld 27% OBC reservation as per Mandal Commission.
- Directed exclusion of “creamy layer”:
- Children of high-ranking officials, professionals, industrialists, etc.
- Applied only to OBCs, not SCs/STs.
- Set income/position-based tests for exclusion.
DoPT Guidelines (Post-1993)
- Income threshold set at ₹1 lakh annually (1993).
- Revised multiple times → now ₹8 lakh per year (since 2017).
- Categories excluded:
- Children of Group A/All India Services officers.
- Children of armed forces officers above Lt. Colonel.
- Professionals/business owners with substantial income.
- Importantly: Wealth (property ownership) is not considered, only income/profession.
Issues in Implementation
- Anomalies:
- Children of low-paid Group A officers automatically excluded (though not necessarily “affluent”).
- Children of public sector employees treated differently from private-sector counterparts.
- Lack of uniformity across state vs central services, teaching vs non-teaching posts.
- Certificates issued under old criteria sometimes still used, even after revisions.
- Court rulings in 2015 & 2023 highlighted confusion and inconsistencies.
Current Proposal: “Equivalence”
Aim → uniform criteria across ministries, PSUs, universities, and states.
- Key Features Proposed:
- Equivalence of Pay Scales: Link OBC creamy layer exclusion to pay level (not just income).
- Eg. Assistant Professors (entry-level university teachers) = Group A equivalent → counted in creamy layer.
- Non-teaching staff in universities: Equated with state government non-teaching positions.
- Executives in PSUs:
- If income > ₹8 lakh, they fall under creamy layer.
- But ceiling for private sector employees = ₹8 lakh income, irrespective of position.
- Employees of government-funded institutions: Should follow same service rules/pay-scales as government employees.
- Equivalence of Pay Scales: Link OBC creamy layer exclusion to pay level (not just income).
Likely Beneficiaries
- Children of lower-rank Group A officers (earning just above ₹8 lakh but not wielding high social capital).
- Employees of state universities & aided institutions who previously faced unequal treatment.
- OBC candidates denied earlier due to lack of uniform application of creamy layer norms.
Broader Analysis
- Positive Aspects:
- Creates fairness, removes anomalies.
- Prevents arbitrary exclusion.
- Ensures genuine backward classes continue benefiting.
- Concerns:
- Income ceiling (₹8 lakh) may still be too high, letting affluent OBCs corner benefits.
- Wealth/property ownership still ignored.
- Equivalence across diverse institutions (state, PSU, universities) is administratively complex.
- Risk of dilution of merit vs social justice balance.
Policy & Political Dimensions
- Creamy layer debate often resurfaces during elections → political sensitivity.
- Expanding creamy layer definition = balancing act between social justice and appeasing middle-class OBCs.
- Recommendations by NCBC, DoPT, and Social Justice Ministry under discussion.
Comparative Insights (Global)
- US: Affirmative action debates also face “class vs race” questions (should rich Black families get same benefit as poor?).
- South Africa: Similar debates on whether upper-class Black Africans should benefit from racial quotas.
- India’s creamy layer = unique model of mixing caste + class filters.
Way Forward
- Regular revision of income ceiling linked to inflation.
- Include wealth/property criteria, not just income.
- Separate criteria for rural vs urban OBCs.
- Improve data transparency in issuance of creamy layer certificates.
- Gradually shift towards socio-economic deprivation index (composite indicators).
Nationalists in Ireland, India: How a Future Indian President was Inspired
Basic Background
- Who: Varahagiri Venkata Giri (V.V. Giri) – 4th President of India (1969–1974).
- Where: Studied law in Dublin (1913–1917).
- Context: Ireland under British rule → parallel anti-colonial movements in Ireland and India.
- Link: Giri’s exposure to Irish labour movement, nationalist struggle, and student activism shaped his political ideology in India.
Relevance: GS 1(History )

Conditions in Ireland (Early 20th Century)
- Admission for Indians in English universities stricter → Ireland relatively more open.
- Racial prejudice less pronounced in Ireland compared to Britain.
- Dublin = hub of student, labour, and nationalist movements.
- Dublin Lockout (1913): workers’ strike against exploitation → Giri directly witnessed.
Giri’s Activism in Dublin
- Immersed in Irish Labour Movement → exposure to collective bargaining, trade unionism.
- Inspired by:
- Irish Transport & General Workers’ Union.
- Radical leaders like James Connolly (executed after Easter Rising 1916).
- Joined the Anarchical Society (propagating anti-imperialist methods).
- Worked with Indian Students’ Association in Dublin (published pamphlets against racism & British atrocities in South Africa).
Key Influences on Giri
- Labour Rights: Deep commitment to trade unions and worker emancipation in India later.
- Nationalism: Irish experience gave him “complete sense of identity with the Irish cause” → parallels with India’s struggle.
- Revolutionary Inspiration: Inspired by Easter Rising (1916), despite suppression by British.
- Personal Resolve: After seeing Irish sacrifices, resolved to return to India and work for independence.
Political Repercussions
- Marked as a political radical by British authorities.
- Closely watched, deported back to India in 1917.
- Continued activism in India:
- Organised transport workers’ unions.
- Advocated labour rights + independence.
- Eventually became India’s President.
Indo-Irish Parallels
- Common struggle: Both nations under British imperialism.
- Labour movements: Key element in both nationalist struggles.
- Cross-learning: Indians drew from Irish revolutionary zeal; Irish saw India’s movement as sister-struggle.
- Shared leaders: Gandhi–South Africa (labour, non-violence) vs Connolly–Ireland (labour, armed resistance).
Broader Analysis
- Intellectual exchange: Globalisation of anti-colonial ideas even before independence.
- Labour as nationalism’s ally: National freedom tied to worker emancipation.
- Diaspora role: Students abroad became bridges for transnational solidarity.
- India’s labour politics: Shaped by this experience → Giri’s presidency symbolised merging of workers’ rights + democratic politics.
Contemporary Relevance
- Highlights importance of global solidarity in anti-colonial struggles.
- Lessons for today:
- Transnational unity against oppression (climate justice, workers’ rights).
- Role of student/youth movements in shaping politics.
- Reminder: Political empowerment must include economic emancipation of the working class (Giri’s lifelong message).