The global shift towards clean energy has positioned hydrogen as a leading contender in the quest to decarbonize transportation. Sectors like heavy industry, aviation, and maritime are exploring hydrogen-powered vehicles as an alternative to reduce carbon footprints. With its versatility, scalability, and potential for zero-emission performance, hydrogen is revolutionizing hard-to-electrify sectors. The market for hydrogen technologies is booming, expected to reach $410 billion by 2030 with a 25% CAGR. Breakthroughs in hydrogen technology, such as Airbus' hydrogen jet engine and Hyundai's XCIENT Fuel Cell truck, are pushing the boundaries of transportation sustainability. India is making strides in green hydrogen with initiatives like the NGHM, aiming for significant global market share by 2030. The unique properties of hydrogen, like high energy density and rapid refueling, make it ideal for heavy-duty transport on land, air, and water. Hydrogen-powered trucks and ships offer long-range capabilities and environmental benefits, while hydrogen in aviation shows promise for future commercial aircraft. Green hydrogen, produced through electrolysis using renewable energy, is becoming more cost-effective, with trends like declining production costs and increasing infrastructure investments worldwide. Policy frameworks play a crucial role in promoting hydrogen adoption, with financial incentives, public-private partnerships, regulatory support, and innovation funding driving the industry forward. India's top companies, including Reliance Industries, are spearheading the hydrogen revolution with ambitious green energy plans and collaborative projects.