India's First LNG Dual-Fuel Train Flagged Off at Sabarmati, Gujarat

What happened

India's first Liquefied Natural Gas (LNG) dual-fuel train was formally flagged off by Union Minister of Home Affairs and Minister of Cooperation, Amit Shah, alongside Gujarat Chief Minister Bhupendra Patel at Sabarmati Railway Station in Ahmedabad. Operating under the Ahmedabad Division of Western Railway, the inaugural run of the 8-coach non-AC chair car Diesel Electric Multiple Unit (DEMU) rake was conducted on the route between Sabarmati and Mahesana Junction.

The project was executed by the Sabarmati Integrated Coaching Depot (ICD), which converted and retrofitted two 1,400 HP Driving Power Cars (DPCs) into a diesel-LNG dual-fuel traction system. Prior to commissioning, the retrofitted power cars successfully cleared more than 2,000 km of field and mainline safety trials. The dual-fuel mechanism substitutes approximately 40 percent of standard diesel consumption with LNG. Each converted DPC is fitted with a 2,200-litre insulated cryogenic tank that stores LNG at –162°C, holding roughly 850 to 900 kg of fuel. This transition is estimated to generate annual fuel savings of approximately ₹11.9 lakh per DPC, translating to roughly ₹23.9 lakh per 8-coach rake.

The train launch formed part of a broader rail infrastructure and safety package valued between ₹1,472 crore and ₹1,542 crore inaugurated across Gujarat. Key elements included the inauguration of a ₹700-crore maintenance shed for WAG-12 locomotives at Sabarmati and the commissioning of a 12,000-horsepower twin-section WAG-12 electric freight locomotive. In terms of passenger safety, the indigenous automatic train protection system 'Kavach' was operationalised on the Sabarmati–Kalol–Sabarmati section at an investment of ₹48 crore. In addition, foundation stones were laid for Kavach expansion across 404 km in Ahmedabad division (157 km on Ahmedabad–Palanpur and 247 km on Ahmedabad–Samakhiali) at an estimated cost of ₹411 crore.

Additional operational enhancements announced at the event included the commissioning of Automatic Block Signalling across 122.57 km (Sabarmati–Kalol–Bhandu Motidau and Sabarmati–Sanand–Jakhwada sections) costing ₹118.83 crore, and the start of doubling work on the Sabarmati–Sarkhej section. The event also highlighted the successful trial of India's first long-haul double-stack container train run between Vadodara and the Jawaharlal Nehru Port (JNPT) near Mumbai.

This development aligns with Indian Railways' broader objective to achieve net-zero carbon emissions by 2030, following the rollout of the nation's first hydrogen-powered train on July 17, 2026. Supported by route electrification reaching 99.6 percent, the national transporter's annual diesel consumption dropped from 293 crore litres in 2015–16 to 108 crore litres in 2024–25.

📅 Important dates

📝 What candidates should do

• Note down the exact horsepower rating (1,400 HP), fuel substitution ratio (40%), and depot name (Sabarmati ICD) for SSC and Railway recruitment exams.
• Review Indian Railways' green initiatives chronologically, connecting the 2030 net-zero target, 99.6% electrification milestone, and the July 2026 hydrogen train launch for UPSC and State PSC mains answers.

🔍 PrepZen analysis

The induction of an LNG-powered dual-fuel DEMU rake marks an important technological bridge in Indian Railways' decarbonisation journey. While complete route electrification stands at 99.6%, non-electrified spurs, shunting yards, and multiple-unit passenger corridors still rely on conventional diesel traction. Introducing a system capable of substituting 40% of diesel with cleaner-burning natural gas reduces particulate emissions and lowers operational expenditure by nearly ₹24 lakh per rake annually.

Exam question setters frequently focus on 'first-in-India' infrastructure achievements, technical metrics, and safety initiatives. Aspirants should expect questions addressing the location of conversion (Sabarmati ICD), the power rating of the power cars (1,400 HP), and the storage conditions of LNG (–162°C). Furthermore, the simultaneous expansion of Kavach across 404 km in the Ahmedabad division and the commissioning of Automatic Block Signalling underline the integrated approach of upgrading both speed and safety on key freight-passenger arteries.

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Prepared by the PrepZen Editorial Team from official releases and verified reports, for exam preparation. Spotted an error? Write to prepzen.app@gmail.com.