Microsoft joins consortium backing undersea cable to link India with Singapore and Malaysia for AI traffic

Microsoft has joined a group of Asian telecommunications and infrastructure firms to build a new undersea cable connecting India with Singapore and Malaysia, according to a market report published alongside Microsoft’s involvement.

The project is described as a “high-speed” submarine link intended to carry more data across the region as AI workloads and other bandwidth-hungry services increase. The report says the initiative is being carried out by a consortium that includes Singapore Telecommunications, Tata Communications and telecom startup Lightstorm, with Microsoft participating as a technology partner.

The reporting frames the connection as support for “AI payloads,” using the term to refer to the data and compute results that must move between data centers for machine learning training, inference and other AI services. In that context, the cable is positioned as an upgrade to long-haul network capacity and latency between major hubs.

While the consortium’s membership suggests a blend of local carrier and international connectivity expertise, the public details in the market post do not specify the cable’s landing points, length, design capacity, or timeline for construction and commissioning. The report focuses on the regional purpose and on Microsoft’s participation rather than engineering specifications.

For Microsoft, involvement in undersea connectivity reflects how major cloud and AI providers increasingly treat network infrastructure as part of their service delivery. Faster and more reliable international links can reduce the friction of moving large volumes of data between cloud regions and partners, which is relevant for both consumer and enterprise AI use cases that rely on continuous connectivity to distributed compute.

The wider telecom and connectivity sector has also been indicating growing demand from data-intensive applications, including AI. Undersea cables remain a critical bottleneck for cross-border bandwidth in Asia, and projects linking multiple countries can give carriers and cloud providers more options for routing traffic.

Still, key items are not disclosed in the market coverage, including the exact commercial role Microsoft will play, whether Microsoft is funding any portion of the build, and how the cable’s capacity will be allocated among consortium members and end customers. Without an official consortium announcement or regulatory filing visible in the available material, the project’s scope and economics remain unclear.

Investors and industry watchers will likely watch for additional confirmation from the consortium partners, including project milestones, capacity targets, and service plans. Those details would indicate whether the project is aimed primarily at wholesale capacity for carriers, direct network commitments for cloud operators, or a mix that could shape how AI and other data traffic is delivered across the India-Southeast Asia corridor.