Tata Communications to invest $152 million in India-Singapore digital corridor, add 98 Tbps AI-ready subsea capacity

Tata Communications will invest $152 million to strengthen the India-Singapore digital corridor, expanding its subsea cable infrastructure with an additional 98 Tbps (terabits per second) of capacity to support the growing demand for AI, cloud computing and data-intensive enterprise applications.

The investment includes $63 million towards acquiring 20 Tbps capacity on the MIST (Malaysia, India, Singapore Transit) cable system connecting Mumbai and Singapore, and $89 million as a consortium member in Project CS, which will add 78 Tbps of capacity between Chennai and Singapore. The Chennai-Singapore cable is expected to be ready for service in the fourth quarter of 2029, according to the company.

$152 million investment to expand AI-ready connectivity

The expansion comes as AI workloads, hyperscale cloud deployments and data centre growth drive an unprecedented surge in international bandwidth demand. Tata Communications said the India-Singapore route is expected to become one of the world's most critical digital corridors, carrying enterprise, cloud and hyperscaler traffic between India, Southeast Asia and global markets. The additional capacity is expected to improve network diversity, resilience and low-latency connectivity while supporting the next phase of enterprise digital transformation.

Genius Wong, executive vice president – core and next-gen connectivity services and chief technology officer at Tata Communications, said the company is investing ahead of demand as AI reshapes global digital infrastructure requirements.

"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," stated Wong.

She said the strategy combines immediate capacity augmentation with long-term infrastructure creation.

"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," added Wong.

According to industry estimates, Tata Communications currently operates around 270 Tbps of global subsea capacity, with nearly 172 Tbps already lit, making it one of the largest international network operators serving enterprises and hyperscalers.

Strengthening India's data centre ecosystem

The new cable systems will integrate with Tata Communications' terrestrial fibre network, providing seamless connectivity to more than 100 data centres across India. The company said enterprises will be able to access dynamic data centre and multi-cloud connectivity through its IZO platform with self-provisioning, self-healing and always-on network capabilities.

Wong said the investments are also aligned with the company's broader ambition of expanding its global digital infrastructure footprint.

"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."

The company currently operates one of the world's largest wholly owned subsea networks, spanning over 500,000 km of subsea optical fibre and 200,000 km of terrestrial fibre. It had also integrated the TGN IA2 submarine cable in 2025 to improve latency, redundancy and network diversity across Asia, reinforcing its strategy of building AI-ready global connectivity infrastructure.