Indian Railways achieved a significant milestone by testing the first hydrogen-powered train coach in the country at the Integrated Coach Factory in Chennai. The coach, originally used in a diesel-powered train, has been modified to operate on hydrogen gas, offering a more eco-friendly alternative. The hydrogen train utilizes a Hydrogen Fuel Cell System, combining hydrogen gas stored in special tanks within the train with oxygen from the surrounding air to generate electricity that powers the train, with water vapor being the only emission. This clean technology makes the hydrogen train a sustainable choice for Indian Railways, not emitting smoke or harmful gases, and being cost-effective in the long term. The chemical reaction between hydrogen and oxygen inside the fuel cell produces electricity, heat, and water vapor, making the operation efficient and environmentally friendly. Additionally, the train incorporates a battery system that supports power requirements, aiding in situations like uphill travel and ensuring a continuous and smooth operation.