The company will build a 10,000-km network with 7.2 petabytes of capacity across key data centre and AI hubs, with meaningful revenue contribution expected from FY28-29. Tata Communications will invest $400-450 million over the next three to five years to build a 10,000-km fibre network with 7.2 petabytes of capacity across India, connecting key data centre and artificial intelligence (AI) hubs, the company said in a statement on Monday.