The article delves into the complexities of establishing a hydrogen vehicle manufacturing plant, focusing on the detailed aspects involved in the process. Hydrogen vehicles, particularly Fuel Cell Electric Vehicles (FCEVs), are highlighted for their environmentally friendly nature, offering zero emissions with only water vapor as a byproduct, quick refueling times, and longer ranges compared to battery electric vehicles. Setting up a hydrogen vehicle manufacturing plant is described as a capital-intensive endeavor that requires advanced fuel cell technology, high-pressure hydrogen storage systems, and stringent safety protocols for handling hydrogen. The article emphasizes the importance of specialized production lines for fuel cell stacks and hydrogen tanks, along with the need for a robust supply chain for critical components like platinum catalysts. The industry outlook for hydrogen vehicles by 2025 is optimistic, driven by global decarbonization efforts and government support for hydrogen infrastructure. While passenger car adoption may be slower, commercial vehicles such as buses and heavy-duty trucks are expected to drive market growth due to the practicality of hydrogen for long-haul transportation and fast refueling. Key insights for setting up a hydrogen vehicle manufacturing plant are provided, covering detailed process flows, machinery and technology requirements, raw material and utility needs, and the overall cost breakdown. The article outlines the essential components for plant setup, including capital investments, operating costs, revenue projections, and profitability analysis. Moreover, economic trends influencing the costs of establishing a hydrogen vehicle plant are discussed, with a focus on factors like hydrogen production costs, fuel cell manufacturing equipment, hydrogen storage systems, assembly line automation, research and development investments, and skilled workforce requirements. The importance of environmental and safety compliance systems is also highlighted to ensure the safe handling and operation of hydrogen vehicles.