India’s Climate Finance Taxonomy released in draft in May 2025 and under consultation defines which economic activities and assets qualify for green and transition finance labelling in India. For CFOs at steel, aluminium, and fertiliser companies, the taxonomy determines access to sovereign green bond proceeds, sustainability-linked lending terms, and eventual alignment with the global sustainable finance architecture. The draft thresholds are more demanding than many industry participants anticipated. This analysis maps exactly which production routes qualify, which are excluded, and what asset-level actions enable taxonomy eligibility.