Science & TechnologyEnvironment
News 18 of 21

Indian Railways Launches First LNG-Diesel Dual-Fuel DEMU Train; 40% Diesel Replacement, Rs 23.9 Lakh Annual Savings

Science & TechEnvironmentInfrastructureHIGH
Target:UPSC GS-IIIMPSCSSC GATeachingPrelims HighMains MediumStatic GK Link
27 Sept 2026
~2 min
Source: Indian Express
Key Data:40% diesel replacementRs 11.9 lakh per DPC per yearRs 23.9 lakh per rake per year444 km range per DPC2,200 litres LNG tankOver 2,000 km field trials
Bodies:Ministry of RailwaysIndian Railways
Practice MCQs from today's news ▸
What This Article Covers

1.India's first LNG-diesel dual-fuel DEMU train was launched from Sabarmati to Mahesana Junction on September 27, 2026.

2.The dual-fuel system can replace about 40% of diesel consumption, saving an estimated Rs 23.9 lakh per year for an 8-coach rake.

3.This is part of Indian Railways' broader alternative fuel strategy, following the hydrogen train launched on July 17, 2026 between Jind and Sonipat.

The Big Picture
Prelims · HighMains · Medium

Indian Railways has launched its first LNG-diesel dual-fuel DEMU train from Sabarmati, Gujarat, capable of replacing 40% diesel consumption. This follows the hydrogen train launched in July 2026, marking a strategic shift towards alternative fuels to reduce costs and emissions. For exam aspirants, this is a key case study in energy transition and infrastructure modernization.

Exam Lens

Quick Exam Facts From News

Launch DateSeptember 27, 2026
Route (Inaugural)Sabarmati to Mahesana Junction, Gujarat
Diesel Replacement~40%
Annual Savings per DPCRs 11.9 lakh
Annual Savings per 8-coach RakeRs 23.9 lakh
LNG Tank Capacity per DPC2,200 litres (~950-1,000 kg usable LNG)
Range on Full LNG~444 km per DPC
Field Trials CompletedOver 2,000 km
Hydrogen Train Launch DateJuly 17, 2026 (Jind-Sonipat)

1-Minute Revision

  • ›Launch Date: September 27, 2026
  • ›Route (Inaugural): Sabarmati to Mahesana Junction, Gujarat
  • ›Target this Data: 40% diesel replacement; Rs 23.9 lakh annual savings per 8-coach rake; 444 km range per DPC on full LNG.
  • ›Target this Nodal Body: Ministry of Railways / Indian Railways.
  • ›Target this Legal Point: Not applicable (no specific legal provision mentioned).

Mastered this topic? Test your knowledge with a full MCQ quiz.

Practice exam-style questions, track your score, and strengthen your recall.

Q1Static LinkageEasy

Which ministry is primarily responsible for the development and operation of the LNG-diesel dual-fuel train mentioned in the news?

Q2Statement-basedHard

Consider the following statements regarding the alternative fuel trains of Indian Railways:

1. The hydrogen train generates electricity onboard through a fuel cell, producing water vapour as the only by-product.

2. The LNG-diesel dual-fuel train can replace up to 60% of diesel consumption.

3. The LNG train uses an internal combustion engine modified to run on both LNG and diesel.

Which of the statements given above is/are correct?

Q3Data-centricMedium

According to the article, what is the estimated annual fuel cost saving for an 8-coach LNG-diesel dual-fuel rake?

Q4Application/ImpactMedium

What is the primary operational advantage of the dual-fuel system used in the LNG train compared to a pure LNG system?

All 15 MCQs ▸
Read original article from Indian Express
You finished this topic
Practice 3 MCQs from this newsNext Article
Explore Related Topics
Science & TechView Topic MCQs →EnvironmentView Topic MCQs →InfrastructureView Topic MCQs →
PreviousAmit Shah Launches ₹1,542 Cr Railway Projects in Gujarat: First LNG Train, WAG-12 Shed, KavachNext NTA Gets CISF Security Cover After NEET Paper Leak; CBI Chargesheet Reveals Lapses
Related Current Affairs
Science & Tech Current Affairs

India’s First LNG-Diesel Dual-Fuel Train Launched by ICF; Compare with Hydrogen Train for UPSC

Indian Railways launched its first LNG-diesel dual-fuel train from Sabarmati on September 27, 2026, following the hydrogen train debut in July. This is a high-yield topic for UPSC Prelims (Science & Tech, Environment) and Mains (GS-3: infrastructure, alternative fuels). The article also explains Kavach (Automatic Train Protection system) – a recurring Prelims favourite.

Infrastructure Current Affairs

Amit Shah Flags Off India's First LNG-Powered Train: Dual-Fuel Tech to Cut Diesel Use by 40%

India's first LNG-powered train, flagged off by Amit Shah from Sabarmati, marks a major shift towards cleaner fuel in railways. The dual-fuel system can replace up to 40% of diesel, cutting emissions and saving Rs 23.9 lakh per year per rake. This is a key initiative for sustainable transportation and energy efficiency.

Infrastructure Current Affairs

Amit Shah Launches ₹1,542 Cr Railway Projects in Gujarat: First LNG Train, WAG-12 Shed, Kavach

Union Home and Cooperation Minister Amit Shah launched railway projects worth over ₹1,542 crore in Gujarat, including India's first LNG-powered train, a WAG-12 locomotive maintenance shed, Kavach safety system, automatic signalling, and line doubling. This signals a push toward safer, greener and higher-capacity rail operations — a strong source of Prelims data points and Mains material on infrastructure modernisation.

Science & Tech Current Affairs

RDSO Deploys AI on Railways: ITMS, Kavach SIL-4, Accidents Down from 135 to 11

Indian Railways' RDSO is deploying AI-driven systems (ITMS, WILD, Tri-Nethra, Kavach) to enhance safety, resulting in a dramatic drop in consequential accidents from 135 (2014-15) to 11 (2025-26). Key for exams: data on accident reduction, Kavach's SIL-4 certification, and AI applications in railway safety.

Infrastructure Current Affairs

Indian Railways Runs First 1.3-km Double-Stack Container Train, Carrying 360 TEUs on Western DFC

Indian Railways has operated its first 1.3-km double-stack container train on the Western Dedicated Freight Corridor (WDFC), carrying 360 TEUs from JNPT to Vadodara. This milestone enhances freight capacity, reduces congestion, and supports the modal shift from road to rail—a key exam topic in infrastructure and logistics.

Infrastructure Current Affairs

Indian Railways’ First High-Speed Test Track in Rajasthan to Enable 220 kmph Trials from 2027-28

Indian Railways' first dedicated high-speed test track in Rajasthan is nearing completion. Developed by RDSO at Rs 967 crore, it will enable testing of trains like Vande Bharat at 220 kmph from 2027-28, making India the first country to have comprehensive testing facilities as per international standards. This will accelerate indigenous technology adoption and improve railway safety and performance.

Infrastructure Current Affairs

SCR Celebrates 60 Years: Kavach First Tested, DigiPay & Unmanned Crossing Elimination Achieved

South Central Railway (SCR) marks 60 years of transformation from Nizam-era narrow gauge to modern LHB trains and Kavach auto-protection system. Key milestones include first testing of India's indigenous train protection system (Kavach), elimination of all unmanned level crossings by 2018, and 100% LED-lit stations. With 93% electrification and 454 daily trains, SCR is a model zone for technological and safety upgrades.

Science & Tech Current Affairs

NPCIL Commences Fuel Loading at RAPP-8: 4th Indigenous 700 MWe PHWR in Fleet Mode

NPCIL has started initial fuel loading (IFL) at Unit 8 of Rajasthan Atomic Power Project (RAPP-8), a 700 MWe indigenous pressurised heavy water reactor (PHWR). This marks a major step in India's fleet-mode nuclear expansion, with commercial operation expected in 2026-27. For exams: understand PHWR technology, AERB's role, and the commissioning sequence (IFL → FAC → power generation).

Start Today's Quiz(15 Qs)