The whitepaper 'Role of Green Hydrogen in Indian Steel Sector' prepared by Ernst & Young (EY)-Parthenon in collaboration with WWF-India highlights the pivotal role of green hydrogen in transforming India's steel sector towards sustainability. The analysis within the paper outlines how the adoption of green H2-DRI and electric arc furnace (EAF) routes could significantly impact the steel industry's carbon footprint. By 2070, these green hydrogen-based methods are expected to contribute up to 41% of India's total crude steel output. Furthermore, the paper projects a 13% CAGR in green hydrogen demand, showcasing the potential growth in this sector. Investments totaling US$297-US$304 billion are deemed necessary to achieve a 245 MMTPA H2-DRI capacity by 2070. Despite initial higher costs, the decreasing trend in green hydrogen prices and the rise in global carbon prices are anticipated to enhance the cost competitiveness of green hydrogen-based steelmaking by 2035. The shift towards the green hydrogen DRI-EAF route not only promises a substantial reduction in emissions but also forecasts a decrease in production costs, making it a viable alternative to traditional steelmaking methods. The whitepaper concludes by emphasizing India's opportunity to drive sustainable steel production through green hydrogen, aligning with global carbon emission reduction goals. By overcoming economic, technological, and logistical challenges strategically, India can position itself as a leader in sustainable steel production, contributing to industrial innovation, energy security, and climate action for a greener future.