The article highlights the critical role of green hydrogen (GH2) in the global and Indian green energy transition. To make GH2 competitive with grey hydrogen, significant resources must be allocated to boost manufacturing capabilities and achieve a cost target of USD 1 per kilogram of GH2 in a decade. Fuel Cell (FC) technologies are identified as key enablers for the rapid adoption of GH2 in sectors like mobility, energy, and industrial processes. FCs convert chemical energy into electricity and can be deployed across various sectors, including mobility (e.g., shipping, railways), stationary power solutions, and long-duration energy storage. The article emphasizes the importance of reducing FC system costs through scaling up manufacturing and improving efficiency. It suggests that economies of scale, better stack components, and enhanced manufacturing processes can help achieve cost targets and maximize the potential of FC technology. India is encouraged to align its technology development programs with initiatives like 'Make in India' to establish world-class FC manufacturing units and drive down costs by almost 30%. The roadmap for FC technology development should focus on achieving performance, cost-competitiveness, and durability targets collaboratively agreed upon by various stakeholders in the industry.