Adani Defence & Aerospace has entered into a strategic collaboration with Sparton DeLeon Springs LLC, a subsidiary of US defence company Elbit Systems, to jointly develop and manufacture sonobuoy systems in India. The move will enable the private sector to locally produce these advanced underwater surveillance tools for the first time, in a bid to enhance the Indian Navy’s anti-submarine warfare (ASW) capabilities.
The agreement supports the Government of India’s ‘Aatmanirbhar Bharat’ (Self-Reliant India) and ‘Make in India’ initiatives, which aim to foster indigenous defence production. The localisation of sonobuoy technology is viewed as critical for ensuring national security in increasingly contested maritime environments.
Sonobuoys are specialised, expendable electronic devices deployed by aircraft or ships to detect and track enemy submarines. They are essential to modern underwater surveillance and serve as a key component of integrated intelligence, surveillance, and reconnaissance (ISR) operations.
Naval forces around the world rely on these systems to protect strategic assets, such as carrier strike groups, from underwater threats.
Jeet Adani, Vice President of Adani Enterprises, emphasised the strategic importance of the development.
“In an increasingly volatile maritime environment, strengthening India’s undersea warfare capabilities is not merely a strategic priority but an imperative for safeguarding sovereignty and national interests,” he said.
He further noted that India needs mission-ready ISR and ASW systems that are indigenously developed, quickly deployable, and globally competitive. “This initiative reflects our Group’s vision of empowering India’s armed forces with world-class capabilities that are designed, developed, and delivered in India, for India and the world,” he added.
The partnership is expected to facilitate local assembly and eventual full-scale manufacturing of sonobuoys within India. This would mark a shift from decades of dependence on foreign suppliers for such critical technology.
Ashish Rajvanshi, Chief Executive Officer of Adani Defence & Aerospace, called the collaboration a “step towards building self-reliant capabilities” in a critical defence domain.
“For decades, India has been dependent on imports for such critical technology. This partnership to bring world-class sonobuoy technology and integrating it with India’s defence ecosystem is a step towards building self-reliant capabilities,” Rajvanshi said.
Donnelly Bohan, President and Chief Executive of Sparton DeLeon Springs, highlighted the localised benefits of the project.
“This partnership will enable both companies to localise assemblage, create high-technology skill sets, and deliver reliable ASW solutions tailored to the Indian Navy’s needs,” Bohan stated.
The deal also signals the growing role of private enterprise in India’s defence manufacturing landscape, traditionally dominated by state-run entities. By combining Sparton’s expertise in underwater acoustic technology with Adani’s industrial base and strategic vision, the collaboration is expected to enhance India’s status as an emerging hub for advanced defence technologies.
India’s efforts to modernise its naval forces have gained momentum in recent years amid regional maritime tensions and the increasing presence of foreign submarines in the Indian Ocean. The shift toward indigenous production of critical defence systems such as sonobuoys is intended to reduce vulnerability to supply chain disruptions and enhance strategic autonomy.
Sparton, which has supplied underwater acoustic sensors to the US Navy for decades, brings technical depth and domain knowledge to the partnership. Elbit Systems, its parent company, is a leading global defence technology firm with operations across several continents.
This development also aligns with broader global trends, where countries are seeking to domestically manufacture sensitive military technologies to maintain control over their defence infrastructure and data security.
With the first locally produced sonobuoys expected to be tailored to Indian Navy specifications, the partnership may pave the way for future exports and a strengthened defence manufacturing ecosystem within India.