Airtel, one of the world's largest telecom providers, serves over 350 million customers in India and has transformed its technology environment to overcome operational challenges and improve customer experiences. Previously hindered by siloed data systems, Airtel developed the Converged Data Engine (CDE) to unify data across its services, enabling real-time transactions and intelligent decision-making. Central to this transformation is Aerospike, a low-latency database supporting Airtel's ability to process vast amounts of data quickly and reliably, which facilitates personalized customer interactions and efficient service delivery. The CDE powers key features like Customer 360, providing a unified view of customer activity and supporting applications like outage management and contextual recommendations. By integrating real-time intelligence and predictive AI models, Airtel enhances its operational agility and customer satisfaction, demonstrating the importance of a unified data platform in a competitive telecom market.