Blue bonds: India’s new ocean of finance
The Securities and Exchange Board of India (SEBI) has formally recognised blue bonds as a category of sustainable finance instrument.
Blue bonds are debt instruments whose proceeds are earmarked exclusively for ocean, marine, and water-related sustainable projects, distinguishing them from broader green bonds.
The recognition is aimed at unlocking dedicated capital for India's blue economy, covering areas such as sustainable fisheries, marine conservation, coastal infrastructure, and water management.
The move builds on SEBI's existing green debt securities regulatory framework, extending it to cover ocean-linked sustainability themes.
Blue Bonds and SEBI's ESG Debt Securities Framework
A blue bond is a debt instrument narrower in scope than a green bond — its proceeds must be used only for ocean, marine, and water-related sustainable projects (marine protected areas, sustainable fisheries, coastal infrastructure, water management), rather than the wider basket of climate and renewable-energy projects a green bond can fund. SEBI first introduced a regulatory framework for green debt securities in 2017 under its Non-Convertible Securities (NCS) Regulations, 2021, and in 2023 amended this framework to explicitly recognise blue, yellow, and transition bonds as sub-categories of green debt securities — yellow bonds for solar energy financing, and transition bonds for financing a shift to more sustainable operations.
Key Details
- SEBI's original Green Debt Securities framework: 2017 (revised 2023 to widen the list of eligible project categories and formally add blue/yellow/transition sub-categories)
- Blue bonds fund: sustainable water management and sustainable maritime/ocean-linked activities
- Governing regulation: SEBI (Issue and Listing of Non-Convertible Securities) Regulations, 2021
- In June 2025, SEBI separately introduced a Framework for ESG Debt Securities (other than green debt securities), extending regulatory coverage to social bonds, sustainability bonds, and sustainability-linked bonds (SLBs)
SEBI's recognition of blue bonds gives Indian issuers (ports, municipal bodies, port-sector financing institutions) a defined, SEBI-compliant route to raise capital specifically for ocean and water-sector projects, rather than having to rely on the broader and less-targeted green bond category.
India's Blue Economy and the Draft Blue Economy Policy (2021)
The "blue economy" refers to the sustainable use of ocean and marine resources for economic growth, improved livelihoods, and employment, while preserving the health of ocean ecosystems. India's Ministry of Earth Sciences released the Draft National Policy for India's Blue Economy in 2021, outlining seven priority themes including a national accounting framework for the blue economy, coastal marine spatial planning, fisheries, ocean-linked manufacturing, logistics/infrastructure, coastal and deep-sea mining, and maritime security.
Key Details
- India's blue economy currently contributes an estimated 4.1% of GDP
- Government ambition (via Draft Blue Economy Policy, Sagarmala, and the Deep Ocean Mission) is to substantially scale this contribution over the coming decade
- India's Exclusive Economic Zone (EEZ) spans roughly 2.02 million sq km, giving it sovereign rights over marine resource exploration and use in that zone
- Around 95% of India's trade by volume moves through maritime routes, underlining the strategic weight of ocean-linked infrastructure
Blue bonds are a direct financing mechanism for the priority themes identified in the Draft Blue Economy Policy — giving projects like port modernisation, coastal protection, and sustainable fisheries a dedicated capital-raising instrument aligned with SEBI's sustainable finance taxonomy.
Global Precedent: The Seychelles Sovereign Blue Bond (2018)
The world's first sovereign blue bond was issued by the Government of Seychelles in October 2018, with support from the World Bank, raising US$15 million for marine conservation and sustainable fisheries governance. It set the template that blue bonds globally now follow, including partial credit guarantees to make the instrument attractive to investors despite the narrower environmental use-of-proceeds restriction.
Key Details
- Issued: 29 October 2018; amount raised: US$15 million
- Structure: partially guaranteed by a US$5 million World Bank (IBRD) guarantee, with a further US$5 million concessional loan from the Global Environment Facility (GEF) to partly cover interest payments
- Proceeds use: expansion of marine protected areas and improved governance of priority fisheries
- Cited by the World Bank as a template for other small island and coastal developing states
India's move to formally recognise blue bonds under SEBI's framework follows this established international template, positioning India's blue economy financing within a globally recognised sustainable-debt category rather than creating an entirely new instrument.
- India's blue economy contributes an estimated 4.1% of GDP
- India's EEZ spans approximately 2.02 million sq km
- Roughly 95% of India's trade by volume moves via maritime routes
- SEBI's green debt securities framework dates to 2017, revised in 2023 to add blue/yellow/transition bond sub-categories
- World's first sovereign blue bond: Seychelles, October 2018, US$15 million
- India's first Sovereign Green Bonds (a related but distinct RBI/Government instrument) were issued in January 2023, raising ₹16,000 crore across two tranches under the Sovereign Green Bond Framework of November 2022