World Resources Institute India is honored to support the Ministry of New and Renewable Energy (MNRE), Government of India, as a knowledge partner for green hydrogen to the Energy Transition Working Group under India’s G20 presidency. We are thankful to the Shri Bhupinder Singh Bhalla, secretary MNRE, Shri Ajay Yadav, joint secretary, MNRE, and Shri Dinesh D. Jagdale, joint secretary, MNRE, for entrusting WRI India for commissioning of this technical report on green hydrogen for the G20 nations.