The introduction of hydrogen-powered trains on the iconic Kalka-Shimla Railway in India's Ambala Division is facing delays despite being announced over two years ago. The project, aimed at replacing diesel locomotives with zero-emission hydrogen trains, is still in its initial stages. The railway officials have identified three sites for hydrogen fuel stations at Kalka, Shimla, and Barog, but significant progress is yet to be made. The challenging terrain of the Kalka-Shimla route, which features 102 tunnels, has made overhead electrification extremely difficult. A hired agency recommended alternative solutions like hydrogen or battery-powered trains to preserve the railway's heritage value and reduce carbon emissions. Indian Railways is committed to achieving zero carbon emissions and is actively working on introducing hydrogen-powered trains on this heritage section. The hydrogen-powered train will utilize fuel cells that combine hydrogen and oxygen to generate electricity, emitting only water vapor as a byproduct. Despite the expected high initial costs, Indian Railways anticipates cost reductions as more hydrogen trains are deployed. The project aligns with the organization's goal of reducing its carbon footprint and transitioning to cleaner energy sources. The development of a detailed project report is underway to finalize the fueling sites, capacity, and technical aspects of the hydrogen-powered train initiative.