Blue carbon habitats are considered to have a key role in reducing climate change through carbon sequestration. To comprehend their regulating function in the regional climate change mitigation, the sequestration potential of India's blue carbon ecosystems (mangrove and sea grass coral reefs, mangroves, sea grass meadows, tidal marshes, sand dune systems, and salt marshes) has been studied and analyzed. As per various environmental and anthropogenic parameters, the study had shown considerable fluctuations in the net C flux and storage in the sediment throughout time and space. The capacity for mangroves to store carbon has been calculated to be 702.42 million tonne of CO2 e, with a total expected mangrove cover of 495,842 ha in 2020 (66% of the coastline of India) and a carbon stock value of 386 tonne/ha. In 2030, there will be a 748.17 million tonne CO2 e increase in the sequestration potential. According to estimates, there might be an additional 207.91 million tonne of CO2 e sequestered through the conservation and protection of mangrove cover. With a carbon stock of 108 tonnes per hectare and a total seagrass area of 25,378.4 ha, 10.2 million tonnes of carbon dioxide equivalent may be stored.