Small cardamom is one of Kerala’s most important spice export commodities, with Idukki district functioning as the major production and export center. Although global demand remains strong, exporters face several supply chain inefficiencies related to production uncertainty, post-harvest handling, auction systems, logistics limitations, and regulatory compliance. This study examines the supply chain efficiency of small cardamom exports from Idukki district and its impact on export performance. A descriptive research design was employed using primary data collected from registered cardamom exporters through a structured questionnaire, supported by secondary data from Spices Board reports, government publications, and academic sources. The study focuses on key supply chain components such as production and post-harvest practices, auction and procurement mechanisms, logistics and transportation facilities, and export regulatory requirements. The findings reveal that efficient post-harvest management, transparent auction procedures, reliable connectivity to Kochi port, and strict compliance with export regulations significantly improve supply chain efficiency. Enhanced supply chain coordination leads to timely delivery, reduced costs, consistent product quality, and greater competitiveness in international markets. The study concludes that strengthening supply chain integration and infrastructure is crucial for improving export performance and ensuring the long-term sustainability of small cardamom exports from Idukki district.