Marine heatwaves can severely impact marine biodiversity, including coral reefs and fish populations. Coastal communities reliant on fishing and tourism may face economic challenges due to declining fish stocks and damaged ecosystems. Additionally, altered ocean temperatures can influence monsoon patterns, potentially affecting agriculture and water resources in India. The risks are particularly high for states with extensive coastlines, such as Odisha, Kerala, and Tamil Nadu, where livelihoods are closely tied to the health of marine ecosystems.