Airtel Mobile Phone Services in Chandigarh, India manufactures electronic assemblies for automotive customers with stringent quality requirements. To improve quality, the firm switched from a multiple supplier system (MSS) to a single supplier system (SSS) with one additional supplier as an emergency backup. Some of the benefits of switching to SSS include reduced variation, better availability of resources, captive assembly lines, faster training of technical personnel, improved document and sample control, and reduced cost of quality. Despite these benefits, there were some limitations the firm has successfully overcome. Overall, there has been a direct, positive impact on the bottom line, and efforts continue toward quality and cost improvement.