The blue economy, which refers to the sustainable use of ocean resources for economic growth and livelihoods while maintaining marine ecosystems, has grown substantially, reaching an estimated value of US$1.5 trillion. This value is expected to double by 2030, fueled by rapid advancements in offshore wind energy, marine aquaculture, and fish processing. With its extensive coastline and exclusive economic zone, India has recognized the blue economy as a critical aspect of its development agenda. Global initiatives, such as the G20’s Chennai High-Level Principles and Brazil’s OCEANS 20, emphasize the importance of sustainable finance for ocean conservation. Blue carbon, derived from coastal ecosystems like mangroves and seagrasses, offers a promising solution to close the ocean finance gap. This chapter delves into blue carbon ecosystems and markets, evaluating their role in the blue economy, especially in India. It discusses their status, challenges, and opportunities, stressing the need for strategic interventions and policy frameworks to unlock their full potential. Additionally, it proposes a business model to accelerate blue carbon credit projects in India, fostering the growth of the blue economy.