Tata Communications is investing $152 million (around ₹1,270 crore) to expand its subsea cable network between India and Singapore, strengthening one of Asia’s busiest digital routes.
The investment will increase network capacity, improve connectivity for businesses and support the growing demand for artificial intelligence (AI), cloud services and data centres across the region.
The move also reinforces India’s position as a fast-growing digital infrastructure hub.
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India-Singapore digital corridor set for a major capacity boost
The investment will be split across two key projects.
The first involves a $63 million investment in the MIST (Malaysia-India-Singapore Transit) Cable System, which will add 20 terabits per second (Tbps) of capacity between Mumbai and Singapore during FY27.
The second is an $89 million investment in Project CS, a new subsea cable connecting Chennai and Singapore. Tata Communications is participating as a consortium member, with the project expected to become service-ready by the fourth quarter of 2029. It will contribute another 78 Tbps of capacity.
Together, both projects will add 98 Tbps of new network capacity, helping businesses handle rising volumes of data traffic generated by AI applications, cloud platforms and digital services.
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Focus on AI-ready infrastructure and enterprise connectivity
According to Tata Communications, the expanded subsea network will work alongside its terrestrial fibre network across India, extending connectivity to more than 100 data centres nationwide.
The company expects the upgrades to strengthen services used by enterprises, cloud providers and hyperscale data centre operators.
Genius Wong, Executive Vice President, Core and Next-Gen Connectivity Services and Chief Technology Officer at Tata Communications, said the investments are aimed at building digital infrastructure to support rapidly growing AI-driven services while improving the reliability, scalability, and performance of connectivity across the India-Singapore corridor.
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Builds on Tata Communications’ global network expansion
The announcement follows the 2025 integration of the TGN-IA2 (Tata Global Network – Intra-Asia 2) submarine cable. The project improved connectivity across Asia by reducing latency and enhancing network resilience.
With the latest investment, Tata Communications continues to expand one of the world’s largest privately owned subsea cable networks, positioning itself to support increasing digital traffic between India, Southeast Asia and global markets as demand for AI, cloud computing and digital infrastructure continues to grow.
As AI workloads, cloud adoption and data centre investments continue to accelerate, telecom operators are shifting focus from simply adding bandwidth to building long-term digital infrastructure. Tata Communications’ latest investment reflects that broader industry trend and signals continued confidence in India’s growing role within the global digital economy.

Samarjit Kaur is a journalist and communications professional covering technology & emerging digital trends. With a focus on clarity and context, she reports on developments shaping industries and governance. When not reporting, she chooses to plug-in and relax on her playlists and plan her next bucket-list trips!
