Airtel implemented an Oracle CRM system to centralize its customer relationship management processes across India. This was done to improve customer service and retention as the company was facing issues with a decentralized, manual system. The implementation involved restructuring processes, integrating different systems, overcoming technical challenges, and training employees. Since rolling out CRM, Airtel has seen benefits like increased first contact resolution, customized offers, and a consistent customer experience nationwide. It aims to further enhance CRM through e-commerce initiatives and analytics to maximize customer lifetime value.