West Bengal’s formal entry into the Centre’s Sagarmala 2 programme marks an important shift in the state’s development strategy. Originally launched in 2015 as a ₹8 lakh crore port-led development initiative, the programme seeks to strengthen India’s maritime infrastructure and logistics networks. For a state positioned at the intersection of riverine, coastal and cross-border trade routes, the decision creates an opportunity to reconnect one of India's most strategically located regions with evolving patterns of trade and logistics, and regional integration.
The significance of this moment lies in a long-standing paradox. Few states possess geographic advantages comparable to West Bengal's, yet the state has struggled to convert those advantages into sustained industrial growth and employment generation. Sagarmala 2 therefore raises a larger question: can improved maritime connectivity help Bengal recover some of the economic might that geography once made possible?
The Erosion of a Maritime Advantage
West Bengal's location at the mouth of the Ganges-Brahmaputra river system and along the Bay of Bengal gives it strategic access to northeastern India while positioning it within a wider network of trade and connectivity spanning Bangladesh, Nepal, Bhutan and Southeast Asia.
Geographic advantages create economic opportunities when they are supported by efficient connectivity and integrated into wider production networks. Modern ports do more than move cargo. They reduce logistics costs, attract firms, deepen supplier linkages and create specialised labour markets. Economic history repeatedly shows that ports are most valuable when they become part of wider economic ecosystems that connect logistics, manufacturing and services. As these networks expand, they generate agglomeration economies that strengthen productivity, competitiveness and industrial growth over time.
West Bengal's recent experience illustrates the costs of losing some of these advantages. While cargo volumes expanded rapidly across India and coastal states invested in maritime infrastructure, the relative importance of the Kolkata-Haldia port system diminished over time. This is especially because of ageing infrastructure, draft limitations and inadequate hinterland connectivity, reducing its ability to compete with more efficient port systems elsewhere in the country. For exporters, these constraints translated into higher logistics costs and weaker competitiveness. Tea producers in North Bengal, jute manufacturers in Murshidabad and engineering firms in Howrah increasingly faced disadvantages relative to producers operating closer to more efficient port systems. The result is a gradual weakening of Bengal's ability to convert its geographic position into sustained economic growth.
What Sagarmala Changes
Sagarmala 2 seeks to address many of these constraints through an estimated investment of ₹22,700 crore over the next five years. The proposed deep-sea port at Dadanpatrabar in Purba Medinipur, the Kolkata Water Metro and the expansion of riverine and coastal infrastructure are intended to strengthen connectivity between production centres, markets and trade routes.
The economic significance of these investments lies in their ability to reduce transport costs, improve the movement of goods and people, and expand access to domestic and international markets. Better connectivity can increase the attractiveness of locations for investment, strengthen supply-chain efficiency and create conditions that support new industrial activity. For firms, these improvements can enhance competitiveness by reducing the frictions associated with moving inputs and finished products.
The implications of stronger maritime connectivity extends beyond West Bengal. As India deepens economic engagement through the Act East policy and regional frameworks such as BIMSTEC, improved connectivity in eastern India could strengthen economic integration across the Bay of Bengal region and contribute to a more balanced geography of trade and investment.
Converting Connectivity Into Growth
The creation of infrastructure, however, does not automatically generate economic transformation. Transport investments expand possibilities, but their economic effects depend on how firms, investors and workers respond to the opportunities they create.
West Bengal’s own experience illustrates this distinction. The state’s strategic location has remained largely unchanged, yet economic activity has not always evolved in ways that fully leveraged that position. Geography can create opportunities, but sustained growth depends on whether businesses expand production, new firms enter the market and supply chains become more deeply embedded within the state’s economy.
The central challenge therefore lies not in building infrastructure alone, but in creating conditions that encourage productive economic activity to cluster around emerging transport and trade corridors.
Making Maritime Growth Durable
Whether Sagarmala delivers lasting economic gains will depend on a broader set of institutional and governance conditions.
The first concerns integration between ports and the wider economy. Maritime infrastructure generates larger economic benefits when it is connected to logistics networks, warehousing facilities, industrial clusters and transport corridors. The gains from improved connectivity are greatest when ports operate as part of a wider economic ecosystem rather than as standalone infrastructure assets.
A second condition concerns who participates in the opportunities created by maritime growth. Farmers, fishermen, transport workers, small businesses and young job seekers all have a stake in how port-led development unfolds. This issue carries particular significance in West Bengal, where major development projects have often generated debate around land, livelihoods and distributional outcomes. Maritime development is more likely to endure when local communities gain access to new employment opportunities, stronger market connections and expanding economic activity. The durability of maritime growth will depend on whether these groups become participants in economic transformation rather than observers of it. The success of Sagarmala in West Bengal will therefore be measured not by the infrastructure it builds, but by the economic opportunities it creates.