What should India do to become a leader in green hydrogen?

India need to invest heavily for large scale projects to get economies of scale. The only way India can become leader in green (not grey) hydrogen generation is to reduce the cost to make it at part with petrol/diesel. There are technical issues and hopefully one day this price parity breakthrough will be achieved.

Cost of green hydrogen in India set to fall by up to 40%: Report

India's green hydrogen costs are projected to decrease by up to 40% due to government support and incentives, potentially reaching Rs 260-310 per kg. The nation's Green Hydrogen Mission, launched in January 2023 with a Rs 19,744 crore outlay, aims for 5 million tonnes of annual production by 2030.

https://economictimes.indiatimes.com/industry/renewables/renewable-energy-cost-of-green-hydrogen-in-india-set-to-fall-by-up-to-40-report/articleshow/121769933.cms?from=mdr

Green H2 production cost to fall below $3 per kg soon: Hardeep Singh Puri

Green Hydrogen Production Cost in India: The government has awarded 900,000 tonnes per annum production capacity of green hydrogen to 19 companies under the National Green Hydrogen Mission

https://www.business-standard.com/economy/news/green-hydrogen-production-cost-to-fall-below-3-per-kg-in-india-soon-puri-125092501243_1.html