Tata Communications has announced strategic investments in subsea cable infrastructure, acquiring significant fiber capacity to strengthen connectivity between the AI hubs of Mumbai and Chennai in India and Singapore. The move aims to address growing bandwidth and AI-driven data demands from enterprises across Asia and beyond.
Investment Details and Timeline
The company is enhancing its Tata Global Network (TGN) capabilities by integrating a new subsea cable system between Mumbai and Singapore, and investing as a consortium member in a new subsea cable system connecting Chennai to Singapore, with expected Ready for Service (RFS) in Q4 2029. These investments are designed to build a high-capacity, low-latency pathway for enterprise, cloud, and hyperscaler traffic between India, Southeast Asia, and global markets.
Strategic Importance of the Corridor
The India-Singapore subsea route is set to become one of the world's most critical digital corridors. By enhancing capacity on its TGN network, Tata Communications aims to deliver diverse, agile, and high-performance connectivity to customers. The investments will support the growing Data Centre (DC) ecosystem, offering scalable, reliable, and future-ready connectivity between India and Singapore.
"As global demand for digital and AI-driven services continues to accelerate, these investments reinforce our commitment to building future-ready digital infrastructure at scale," said Genius Wong, Executive Vice President - Core and Next-Gen Connectivity Services, and Chief Technology Officer, Tata Communications. "By combining subsea capacity enhancement with both short-term and long-term strategic investments, we are strengthening the reliability, scalability, and performance of connectivity solutions for our customers across one of the world's busiest digital corridors."
Integration with Terrestrial and Cloud Ecosystems
The new cable systems will connect with Tata Communications' India terrestrial fiber network for seamless onward connectivity to other parts of the country and to over 100 data centres nationwide. Combined with the global TGN subsea network, this will enhance the company's full suite of IZO connectivity solutions, including IZO DC Dynamic Connectivity and IZO Multi-cloud connectivity solutions, providing self-healing, always-on, and self-provisioning capabilities across DC and cloud ecosystems. Customers will be able to activate and integrate these capacities on demand.
Network Fabric and Recent Milestones
Tata Communications' Network Fabric remains the backbone of its portfolio, operating the largest wholly-owned and most advanced subsea fiber network, spanning over 500,000 km of subsea optical fiber and 200,000+ km of terrestrial fiber. In 2025, the company integrated the new TGN IA2 (Tata Global Network - Intra-Asia 2) submarine cable, improving latency for faster performance, enhancing reliability through greater redundancy, and increasing network diversity through seamless interconnection with TGN IA.
These enhancements align with Tata Communications' long-term strategy to expand its global subsea network footprint, provide business outcome solutions to customers, and reinforce India's position as a digital hub.
