Regulatory Disclosure Details

Strategic Investments Overview

Tata Communications is making two significant subsea cable investments to strengthen the India-Singapore digital corridor:

MIST Cable System (Mumbai-Singapore)

  • Capacity Addition: ~20 Tbps
  • Investment: USD 63 million
  • Expected Ready for Service (RFS): Q4 FY2027
  • Initial lit capacity: 2 Tbps with subsequent upgrades in future years

Project CS (Chennai-Singapore)

  • Capacity Addition: ~78 Tbps
  • Investment: USD 89 million (from FY2027 to FY2031)
  • Expected Ready for Service (RFS): Q3 FY2031
  • Initial lit capacity: ~4 Tbps with subsequent upgrades in future years

Existing Network Capacity

  • Total existing capacity: ~270 Tbps across Tata Communications Global Subsea Network
  • Current capacity utilization: ~172 Tbps (lit in cable systems)

Financing Mode

Both investments will be funded through internal accruals.

Technical Implementation

The new cable systems will integrate with:

  • Tata Communications India Terrestrial fiber network for onward connectivity across India
  • Connection to 100+ Data Centres nationwide
  • Tata Communications Global TGN Subsea network

Enhanced Capabilities

The investments will enhance the company's IZO™ connectivity solutions portfolio, including:

  • IZO™ DC Dynamic Connectivity
  • IZO™ Multi-cloud connectivity solutions
  • Self-healing, always-on, and self-provisioning capabilities across DCs and Cloud ecosystems

Network Infrastructure Context

Tata Communications Network Fabric operates:

  • 500,000+ km of subsea optical fiber
  • 200,000+ km of terrestrial fiber
  • The largest wholly-owned and most advanced subsea fiber network underpinning the internet backbone

Management Commentary

Genius Wong, Executive Vice President – Core and Next-Gen Connectivity Services, and Chief Technology Officer, stated: "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. 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."