Tata Communications to Invest ₹1,442 Crore in India-Singapore Subsea Cable Expansion

Tata Communications has announced plans to invest ₹1,442.33 crore (US$152 million) to strengthen digital connectivity between India and Singapore by expanding its subsea cable infrastructure. The investment is aimed at meeting the growing demand for artificial intelligence (AI), cloud computing, and high-capacity digital services across the region.

As part of the expansion, the company will enhance its Tata Global Network (TGN) by integrating the MIST Cable System between Mumbai and Singapore. The project will add 20 Tbps of network capacity through an investment of ₹594.47 crore (US$63 million).

Tata Communications will also participate as a consortium member in Project CS, a new subsea cable system connecting Chennai and Singapore. The company will contribute 78 Tbps of capacity to the project with an investment of ₹839.80 crore (US$89 million). Together, the two initiatives will increase network capacity on the India-Singapore corridor by nearly 98 Tbps.

The expanded infrastructure is designed to support AI-driven workloads, cloud platforms, data-intensive applications, and enterprise connectivity by delivering faster, more resilient, and low-latency network services. The company expects the enhanced network to strengthen digital links between India and Singapore, two rapidly growing technology and AI hubs.

According to Tata Communications, the MIST Cable System is expected to be ready for service by the fourth quarter of FY27, while Project CS is targeted for completion in the third quarter of FY31. The company said the investment reflects its long-term strategy to build future-ready digital infrastructure, improve network resilience, and support the continued growth of Asia’s digital economy and data centre ecosystem.