In-Depth PIB Analysis3 Items

Core TopicImportantConcise

Economy, Energy & Consumer AffairsGS Paper III

01E85 / E100 Flex-Fuel Vehicles — CMVR Amended0261st CIML Meeting — India Hosts Legal Metrology Body

Environment, Water & ResourcesGS Paper I · III

03Catch the Rain & Jal Sanchay Jan Bhagidari

Economy, Energy & Consumer AffairsGeneral Studies Paper III

01

Beyond E20: Motor Vehicle Rules Amended to Certify E85 and E100 Flex-Fuel Vehicles

Core TopicGS-III · Economy — Energy (Biofuels), Infrastructure; Environment — PollutionPrelims + MainsPIB · Ministry of Road Transport & Highways · 26 Oct 2026

The Ministry of Road Transport & Highways (MoRTH) has amended the Central Motor Vehicles Rules, 1989 to expressly include E100 alongside E85 in emission certification. This opens the regulatory path for flex-fuel vehicles (FFVs) — the next step after India reached 20% ethanol blending (E20) in petrol.

◈ Static Background — Ethanol as a Fuel

Ethanol (C₂H₅OH) is an alcohol made by fermenting sugars or starch. Blended with petrol it raises the octane number and adds oxygen, which helps combustion. But it carries about one-third less energy per litre than petrol, so high blends reduce mileage.

• The notation: “E” stands for ethanol and the number for its share by volume — E20 = 20% ethanol; E85 = up to 85% ethanol; E100 = predominantly ethanol.
• First-generation (1G) feedstocks: sugarcane juice, B-heavy and C-heavy molasses, damaged food grains, maize and surplus rice.
• Second-generation (2G): from crop residue such as rice straw — supported by PM JI-VAN Yojana (2019); IOCL’s Panipat 2G refinery (2022) is the flagship plant.
• Flex-fuel vehicle: runs on any blend within a certified range using one tank; sensors and engine controls adjust to the fuel mix, and fuel-system materials resist ethanol’s corrosiveness.
• Global models: Brazil (the Proálcool programme of 1975; flex-fuel cars since 2003) and the United States (E85 for FFVs). India co-founded the Global Biofuels Alliance at the G20 New Delhi Summit (2023).

▤ The Notification at a Glance

• Instrument: amendment to the Central Motor Vehicles Rules, 1989, framed under the Motor Vehicles Act, 1988.
• Nodal Ministry: Ministry of Road Transport & Highways.
• Core change: emission-certification provisions now expressly cover E100 alongside E85; certified vehicles must meet the emission and safety norms of their category.
• Scope: applies only to vehicles designed and certified for these fuels. Owners of existing vehicles are not required to switch fuel or modify vehicles, now or later.
• Consumer guidance: E10 or E20 compatibility does not make a vehicle E85-ready; owners should check the fuel-compatibility sticker and the manual.
• Other changes: updated biodiesel provisions and technical corrections; effective from the date of Gazette publication.

Figure 1 — India’s ethanol blending in petrol (% by volume)

~1.5%2013–145%2018–1910%2021–2220%2024–25Ethanol Supply Year (November–October)E85 / E100Next step — not ablending mandateOnly for certifiedflex-fuel vehicles(chart scale does not apply)

E10 was reached in 2022, ahead of target; E20 in 2025, five years ahead of the original 2030 goal. Chart recreated by Legacy IAS from Ministry of Petroleum & Natural Gas figures (approximate).

Lineage — India’s Ethanol Journey

• 2003 — Ethanol Blended Petrol (EBP) Programme: 5% blending in select States, after pilots in 2001.
• 2018 — National Policy on Biofuels: 20% blending by 2030; allowed ethanol from damaged grains and other feedstocks.
• 2021 — NITI Aayog’s Roadmap for Ethanol Blending (2020–25): advanced the E20 target to 2025.
• 2022 — Policy amendment: E20 target formally brought forward to Ethanol Supply Year 2025–26; E10 achieved in June 2022.
• 2023 onwards: new vehicles made E20-material-compliant; flex-fuel strong-hybrid prototypes showcased; E100 retailed at select outlets.
• 2026 — this amendment: certification pathway for E85/E100 flex-fuel vehicles.

Figure 2 — Which fuel for which vehicle?

E10Petrol vehicles generallyE20Vehicles declared E20-compatible by the manufacturerE85 / E100Only vehicles designed and certified as flex-fuelE10/E20 compatibility does not imply E85 suitability

The fuel-compatibility sticker and owner’s manual decide what a vehicle can use. Diagram drawn by Legacy IAS from the notification’s clarifications.

Why It Matters

• Energy security: India imports over 85% of its crude oil; domestically produced ethanol substitutes part of that import bill.
• Farm economy: ethanol gives sugar mills and grain growers an extra market and helps mills clear cane-price arrears.
• Emissions: suitably designed engines can cut certain exhaust pollutants and life-cycle greenhouse gases — though gains depend on feedstock and production process.
• Beyond the blend ceiling: E20 is close to the practical limit for ordinary vehicles; FFVs are needed to absorb more ethanol.

The Critical View

• Food vs fuel: diverting maize and rice to ethanol can raise feed and food prices; maize demand from distilleries has already tightened supplies for poultry and starch users.
• Water footprint: sugarcane is highly water-intensive; expanding cane for ethanol in water-stressed regions conflicts with groundwater goals.
• Consumer economics: lower energy content means more litres per km; E85/E100 must be priced low enough to offset mileage loss.
• Ecosystem gap: FFV uptake needs vehicle models, dispensing stations and assured ethanol supply simultaneously — a chicken-and-egg problem.
• Transition overlap: with electric vehicles also promoted, policy must clarify the role of FFVs and flex-fuel hybrids in the mobility mix.
• Balanced reading: the notification is enabling, not mandatory, and its clarity on existing vehicles addresses consumer concerns raised during the E20 rollout.

◈ Institutions & Terms to Know

• Ethanol Supply Year (ESY): November to October; blending targets and prices are fixed per ESY.
• Oil Marketing Companies (OMCs) — IOCL, BPCL, HPCL — procure ethanol at administered prices and blend it.
• Octane number: resistance to engine knocking; ethanol raises it.
• FFV-SHEV: flex-fuel strong hybrid electric vehicle — combines flex-fuel engine with hybrid drive.
• Biodiesel: made from vegetable oils, used cooking oil or animal fats; blended with diesel (B-notation, e.g. B5).

✎ Mains Practice Question

Having achieved E20 blending, India is preparing for flex-fuel vehicles that can run on E85 and E100. Critically examine the opportunities and challenges of high-ethanol fuels for India’s energy security, agriculture and environment. 15 marks · 250 words

02

India Hosts the International Committee of Legal Metrology for the First Time

ImportantGS-III · Economy — Consumer Protection, Trade FacilitationGS-II · International InstitutionsPrelims-orientedPIB · Ministry of Consumer Affairs, Food & Public Distribution · 26 Oct 2026

India is hosting the 61st meeting of the International Committee of Legal Metrology (CIML) in New Delhi from 26 to 28 October 2026 — the first time this governing body of the International Organization of Legal Metrology (OIML) has met in India.

◈ Static Background — What Is Legal Metrology?

Metrology is the science of measurement. It has three branches: scientific (maintaining standards), industrial (calibration for manufacturing) and legal — the regulation of measurements used in trade, health, safety and the environment, such as weighing scales, fuel dispensers and electricity meters.

• Constitution: Entry 50, Union List — establishment of standards of weight and measure; States enforce the law through their Legal Metrology departments.
• Lineage: Standards of Weights and Measures Act, 1956 (metric system adopted) → Standards of Weights and Measures Act, 1976 and Enforcement Act, 1985 → Legal Metrology Act, 2009 (in force from 2011), with the Legal Metrology (Packaged Commodities) Rules, 2011.
• Nodal body: Department of Consumer Affairs. CSIR–National Physical Laboratory (NPL), New Delhi, maintains India’s national measurement standards and Indian Standard Time.
• Global link: World Metrology Day (20 May) marks the Metre Convention of 1875.

▤ OIML and CIML at a Glance

• OIML: intergovernmental treaty organisation set up in 1955; its secretariat, the International Bureau of Legal Metrology (BIML), is in Paris. India is a member state.
• CIML: OIML’s governing committee — one representative per member state; meets annually.
• OIML Recommendations: model technical rules for measuring instruments that countries adopt into national law.
• OIML-CS (Certification System): mutual acceptance of type-test results; India is now recognised as an OIML-CS Issuing Authority, helping Indian manufacturers export instruments.
• Agenda this year: machine-readable “Smart Recommendations”, AI in verification, and metrology for EV charging equipment.

India’s Reforms Highlighted

• Jan Vishwas reforms (2023 and 2026): decriminalisation of specified offences, improvement notices and graded penalties — easing compliance while keeping consumer safeguards.
• Government Approved Test Centres (GATCs): private labs approved to verify instruments, expanding capacity.
• e-Maap portal: integrated digital services for licences, registration and verification.
• “One Nation, One Time”: the National Time Dissemination Project to provide accurate, traceable IST (UTC +5:30) for banking, telecom, 5G, navigation and power grids.
• Institutions: Regional Reference Standard Laboratories and the Indian Institute of Legal Metrology, Ranchi.

Why It Matters

• Consumer protection: short-weighing and tampered meters are common grievances; accurate measurement is basic to fair trade.
• Trade: harmonised standards reduce technical barriers to trade (the WTO’s TBT Agreement) and avoid repeat testing for exporters.
• Digital economy: precise time-stamping underpins financial transactions, telecom networks and cyber-forensics.
• Balance to watch: decriminalisation must be matched by effective civil penalties and enforcement capacity in States.

✎ Mains Practice Question

Accurate measurement is a public good for consumers, industry and the digital economy. Discuss the significance of legal metrology reforms in India and the role of international harmonisation of standards. 10 marks · 150 words

Environment, Water & ResourcesGeneral Studies Papers I & III

03

Catch the Rain and Jal Sanchay Jan Bhagidari: Community-Led Groundwater Recharge at Scale

Core TopicGS-I · Geography — Water ResourcesGS-III · Conservation, Water Management; GS-II · Government SchemesPrelims + MainsPIB Backgrounder · Ministry of Jal Shakti · 26 Oct 2026

The Ministry of Jal Shakti reports that over 1.55 crore artificial recharge and storage structures have been built under Jal Sanchay Jan Bhagidari (JSJB). An impact study of 23 lakh structures estimates 2.43 billion cubic metres of groundwater recharge. In 2026, JSJB was merged with the Jal Shakti Abhiyan: Catch the Rain campaign.

◈ Static Background — India’s Groundwater Challenge

• Scarcity: India has about 18% of the world’s population but only about 4% of its freshwater; it is the world’s largest user of groundwater.
• Dependence: groundwater meets most of India’s irrigation and rural drinking-water needs.
• Assessment: the CGWB’s 2024 assessment puts the national stage of extraction at about 60%, with roughly 11% of assessment units over-exploited — concentrated in the north-west and peninsular hard-rock regions.
• Monsoon dependence: most rain falls in about four months, often in intense spells — hence the logic of “catch the rain where it falls, when it falls”.
• Constitution: water is a State subject (Entry 17, State List), subject to Entry 56, Union List on inter-State rivers. Groundwater rights traditionally follow land ownership under the Indian Easements Act, 1882.

Figure 3 — Jal Sanchay Jan Bhagidari: approach and impact

Five design principles and two headline results. Infographic courtesy PIB / Ministry of Jal Shakti, 26 October 2026; reproduced with credit for educational use.

▤ Campaign at a Glance

• Nodal Ministry: Ministry of Jal Shakti (formed in 2019 by merging the water resources and drinking water & sanitation ministries).
• JSA: Catch the Rain: launched on 22 March 2021 (World Water Day); theme “Catch the Rain — Where It Falls, When It Falls”; run annually with changing themes.
• JSJB 1.0: 1 April 2024 – 31 May 2025; the 3Cs — Community, CSR, Cost; over 10 lakh recharge structures built.
• JSJB 2.0: from 1 June 2025; focus on over-exploited and critical districts with hyper-local, low-cost works.
• JSJB: CTR (2026): from 1 June 2026, merging JSJB with JSA: CTR; portal and mobile app for monitoring and feedback.
• Convergence (no separate outlay): VB-G RAM G rural employment works, PMKSY (Per Drop More Crop; Repair, Renovation & Restoration of water bodies), CAMPA, Finance Commission grants and State schemes.
• Reported results: 1.55 crore+ structures; 2.43 bcm recharge estimated from 23 lakh structures (rainfall of 1 June–31 December 2025) (government estimate).

Lineage — From Campaign to Mass Movement

Figure 4 — The evolution of water-conservation campaigns

2019JSA1,592 blocks,256 districts2021JSA: CTRWorld Water Day(22 March)2024JSJB 1.03Cs; women-ledCTR theme2025JSJB 2.0Over-exploited &critical districts2026JSJB: CTRMerged campaign;portal + appCommon thread: Jan Andolan + convergence of existing schemes, not a new fund

Diagram drawn by Legacy IAS from Ministry of Jal Shakti information.

• Related programmes: Atal Bhujal Yojana (2019; community-led groundwater management, World Bank-supported, in seven States); Mission Amrit Sarovar (2022; 75 ponds per district); National Aquifer Mapping (NAQUIM) by CGWB.
• Policy anchors: National Water Policy, 2012; the Model Groundwater Bill (latest version 2016) urging States to treat groundwater as a common resource.
• Recognition: National Water Awards (6th edition, November 2025) and the Swachh Sujal Shakti Samman for women-led water work.
• Jal Shakti Kendras: district-level knowledge and facilitation hubs for technical guidance and planning.

Putting the Numbers in Perspective

Figure 5 — Recharge from JSJB 1.0 vs India’s annual groundwater use (billion cubic metres)

Annual extractable~406Annual extraction~245JSJB 1.0 recharge*2.43 (≈1% of annual extraction)*estimated from 23 lakh evaluated structures, June–December 2025 rainfall

A real gain, but small relative to annual withdrawals — recharge must be paired with demand management. Bars drawn to scale. Chart recreated by Legacy IAS from CGWB (2024 assessment, approximate) and Ministry of Jal Shakti figures.

Why It Matters

• Water security: recharge sustains wells through the dry season and supports Jal Jeevan Mission source sustainability.
• Climate resilience: storage structures buffer droughts and capture intense rainfall that would otherwise run off.
• Livelihoods: works through rural employment programmes create assets and wages simultaneously.
• Revival of tradition: baolis (stepwells), johads, tanks and village ponds are being restored.

The Critical View

• Counting structures vs measuring water: output metrics (structures built) are easier than outcome metrics (water-table change); independent, well-level monitoring is needed.
• Supply without demand control: recharge cannot offset over-extraction driven by free or flat-rate farm power, water-intensive crops (paddy, sugarcane) in water-stressed regions, and MSP-led procurement.
• Hydrogeology: in hard-rock aquifers of peninsular India, storage is limited; structures need scientific siting using aquifer maps.
• Maintenance: desilting and upkeep of millions of small structures is a recurring cost that campaigns often neglect.
• Legal gap: most States have not enacted groundwater regulation on the lines of the Model Bill; ownership tied to land encourages unchecked pumping.

Way Forward

• Track outcomes — water-table levels and well yields — with public dashboards and third-party audits.
• Link recharge with demand-side reform: metered or rationed farm power, crop diversification and micro-irrigation.
• Use NAQUIM aquifer maps for siting; build a maintenance fund through Panchayats.
• Strengthen participatory groundwater management on the Atal Bhujal model and State groundwater laws.

✎ Mains Practice Question

Community-led campaigns such as Jal Sanchay Jan Bhagidari have created lakhs of recharge structures, yet groundwater depletion continues in many regions. Critically examine the role of supply-side and demand-side measures in achieving groundwater sustainability in India. 15 marks · 250 words