Behind the Blue Economy: Coastal Communities Raise Alarm Over Chennai’s Industrial Expansion

A series of testimonies from Ennore highlights how industrial projects and state-led development are encroaching on the traditional livelihoods and health of Tamil Nadu’s coastal residents.

In a small, crowded hall in Ennore, the narrative of India’s "blue economy" took a sharp, uncomfortable turn this week. For the policymakers in Chennai, the term signifies a strategic pivot toward maritime resources, infrastructure, and sustainable growth. But for the hundreds of fishers and residents gathered at a two-day public hearing organised by the Neithaliyal Collective, the reality on the ground feels less like progress and more like a systematic dispossession.

The testimonies presented to a panel—which included activist Fatima Babu, filmmaker Gopi Nainar, and coastal activist Jesu Rathinam—painted a grim picture of a shoreline under siege. From Tiruvallur to Villupuram, the refrain remained consistent: whether it is the expansion of ports, power plants, or the controversial Blue Flag certification at Marina Beach, the local population says these projects are affecting their livelihoods and health.

The Cost of Contamination

At the centre of the discourse is the state of the Kosasthalaiyar river. Subhashini, a resident of Periyakuppam, offered a harrowing account of daily life near the water. She alleged that industrial units and medical facilities are pumping untreated effluents directly into the river, leading to widespread health issues. For the residents, this isn't just an abstract environmental concern; it is a visceral experience of wheezing and chronic illness, with pregnant women and children bearing the brunt of the polluted environment.

The grievance extends to proposed infrastructure, most notably the ₹342.60-crore Mamallan reservoir project. Residents like Saraswathi from Choonambedu and Mohan from Marakkanam argue that the reservoir threatens vital salt marshes and marine breeding grounds. These ecosystems are the backbone of traditional fishing and salt pan work; destroying them, they contend, is a direct assault on their economic survival.

A Pattern of Insecurity

The hearing also brought to light the precarious nature of employment in these industrial hubs. Speakers noted that as traditional fishing space shrinks—a claim echoed by Nochikuppam resident Mullai regarding the Marina Beach beautification—communities are being pushed into high-risk, low-security jobs. This shift is not just about losing autonomy; it is about physical safety. The memory of the recent ammonia leak at a seafood export unit in Tiruvallur, which claimed the lives of 18 women workers, loomed large over the discussions.

The Bigger Picture

Why does this matter? The tension in Ennore reflects a recurring friction in India's industrialisation drive: the trade-off between macro-economic goals and micro-local realities. When large-scale "blue economy" initiatives are planned without accounting for the granular, traditional use of these spaces, the resulting displacement is rarely just economic. It is social and environmental. The demand from the Neithaliyal Collective to re-examine these projects through the eyes of fisherfolk is a signal that the governance of our coastlines needs a paradigm shift. If the state continues to prioritise industrial output over the ecological and human health of the coastal belt, the cost of these projects may eventually outweigh the economic value they promise to deliver.