New SWRO facility in Tuticorin aims to ease water scarcity under public-private partnership model.
CHENNAI — IDE Technologies has signed a contract to design, construct and operate a new seawater desalination plant in Tamil Nadu, marking a significant addition to the state’s water infrastructure as demand continues to rise.
The agreement was awarded by the State Industries Promotion Corporation of Tamil Nadu Limited (SIPCOT), the state’s industrial development body. The project will be developed in Mullakadu, Tuticorin, and is designed to produce 60 million liters per day (MLD) of freshwater.
Officials say the plant is expected to help address growing water scarcity challenges in the region by providing a sustainable source of potable water.
RELEVANT SUSTAINABLE GOALS
Partnership With Local Infrastructure Firms
The desalination facility will be implemented in collaboration with Jindal Water Infrastructure Limited (JWIL) and Vishnusurya Projects and Infra (VPIL).
The initiative is structured under a Hybrid Annual Model within a Public Private Partnership (PPP) framework, combining public oversight with private-sector expertise.
In addition to engineering and construction, the contract includes a 15-year operation and maintenance period after completion.
Expanding Access to Freshwater
Seawater reverse osmosis (SWRO) desalination works by pushing seawater through semi-permeable membranes under high pressure. The process removes dissolved salts to produce freshwater, while generating a concentrated brine stream as a byproduct.
The Mullakadu plant will rely on this SWRO technology to convert seawater from the Bay of Bengal into potable water suitable for local consumption and industrial use.
Nayan Shah, Director of Sales and Marketing at IDE India, said the project aligns with the company’s broader mission.
“Solving water challenges for regions in need is at the core of IDE’s mission to make clean, high-quality water accessible to anyone, anywhere,” Shah said. “Our team looks forward to working alongside our industry partners, JWIL and VPIL, to bring a new, state-of-the-art SWRO desalination plant to Tamil Nadu and to expand our global footprint in the region.”
Competitive Selection Process
IDE Technologies secured the contract after competing against two other strong contenders in the market, underscoring the competitive nature of large-scale desalination projects in India.
The selection signals SIPCOT’s confidence in the consortium’s technical capabilities and operational track record in advanced water treatment solutions.
Addressing Regional Water Scarcity
Tamil Nadu has increasingly turned to desalination as a strategic response to periodic droughts, industrial growth and urban expansion. By adding 60 MLD of freshwater capacity, the Mullakadu plant is expected to strengthen local water management systems and reduce pressure on existing freshwater sources.
The project represents a continuation of India’s efforts to diversify water supply sources through technology-driven solutions, particularly in coastal states where seawater desalination offers a scalable alternative.
As climate variability and industrial demand reshape water planning across South Asia, large-scale SWRO facilities like the one in Tuticorin are becoming central to long-term resilience strategies — pairing engineering innovation with structured public-private collaboration to secure future supply.
You may also be interested in :
ITDC Turns Seawater Into Clean Water, Securing Supply For Nusa Dua’s Tourism Hub
