As climate policies tighten, Indian refiners are embracing decarbonization efforts, with green hydrogen playing a key role in the country's net-zero target by 2070. The sector aims to reduce dependency on fossil fuels and scale up renewable energy use for long-term economic benefits. To succeed, refiners need policies, incentives, pricing systems, and infrastructure support. India's refining industry, the world's fourth-largest hub, ensures energy security for domestic and export markets. Refineries vary in complexity, with some like RIL's Jamnagar complex having high capabilities for processing low-quality crudes efficiently. Despite investments in cleaner fuel production, the sector's carbon footprint persists due to process inefficiencies and fossil fuel reliance. Hydrogen consumption is essential for refining processes, with most currently produced through carbon-intensive methods. India's significant hydrogen demand offers opportunities for green hydrogen adoption, which is produced using renewable energy sources. However, challenges like high costs and infrastructure gaps hinder widespread adoption. Part 2 of the article will explore obstacles to green hydrogen implementation and proposed solutions.