India Unveils First LNG-Diesel Dual-Fuel Train

The Indian Railways has made a groundbreaking move by launching its first LNG-diesel dual-fuel train, flagged off by Union Minister Amit Shah. This innovative train can operate on both LNG and diesel, enhancing fuel flexibility and efficiency. With significant potential for reducing diesel consumption and emissions, this initiative marks a pivotal step towards sustainable rail transport in India. The train's inaugural journey will connect Sabarmati and Mehsana, covering 62 kilometers in just over an hour. As the railway explores alternative fuels, this dual-fuel system aims to lower operational costs while maintaining performance. Read on to learn more about this exciting development in India's railway sector.

By Narendra Chaudhary Sep 27, 2026, 14:45 IST

Introduction

In a significant advancement towards alternative fuels, the Indian Railways has launched its first LNG-diesel dual-fuel train. On September 27, 2026, Union Home and Cooperation Minister Amit Shah flagged off this innovative train from Sabarmati station in Gujarat. This train is designed to operate on both LNG and diesel, depending on availability.

What is the LNG Dual-Fuel Train?

This train is a DEMU (Diesel Electric Multiple Unit) equipped with an LNG-based fuel system in its Driving Power Car (DPC). The engine is engineered to utilize both LNG and diesel, allowing for flexibility in fuel usage based on availability.

The advantage of this technology is that the train does not solely rely on LNG, enabling it to switch between fuel types as needed.

Power and Engine Specifications

As part of this initiative, two Driving Power Cars have been converted to the LNG-diesel dual-fuel system, each boasting a power capacity of 1,400 horsepower. Over 2,000 kilometers of field trials have been conducted to test the technology.

According to railway officials, this system could potentially reduce diesel consumption by approximately 40%, although actual savings will depend on operational conditions and fuel availability.

LNG Tank Capacity

Each DPC is fitted with an LNG tank that has a capacity of around 2,200 liters, which can hold approximately 950 to 1,000 kilograms of usable LNG.

Based on the approved design, a fully filled tank could support daily operations for about 444 kilometers, minimizing the need for frequent refueling.

First Journey from Sabarmati to Mehsana

The inaugural journey of India's first LNG-diesel dual-fuel DEMU is set between Sabarmati and Mehsana Junction, covering a distance of approximately 62 kilometers in about 1 hour and 20 minutes. The train consists of 8 non-AC chair car coaches.

Future routes and operational schedules will be determined by the railway authorities.

Fuel Cost Savings

The introduction of LNG is expected to lower fuel costs for the railways. Based on testing, savings of around ₹11.9 lakh annually per DPC have been projected, with estimates for an 8-coach rake reaching approximately ₹23.9 lakh per year.

These estimates may vary based on actual fuel prices, usage, and operational factors.

Environmental Benefits

This project aims not only to reduce fuel costs but also to decrease emissions of carbon dioxide (CO₂), nitrogen oxides (NOx), and particulate matter. The use of LNG is seen as part of the railway's efforts towards cleaner alternative fuels.

Impact on Speed and Power

The dual-fuel system has been designed to maintain the power, reliability, and operational efficiency of traditional diesel engines, ensuring that the transition between fuels does not compromise the train's performance.

Advancements in Alternative Fuels

India has already initiated the use of hydrogen-powered trains, and the launch of the LNG-diesel dual-fuel train further propels the railway's exploration of alternative fuels. The goal is to reduce dependency on diesel, lower fuel costs, and minimize emissions.

Note: The route, fuel savings, and operational data for the LNG train are based on design and trial estimates provided by the railway; actual results may vary during regular service.