SEDEX Certification In Ludhiana. SEDEX is a not for profit organisation involved in the field of reforms in labour’s working conditions worldwide. The objective of formation of SEDEX is to improve working conditions. SMETA audit is based on ETA base code & environment management system. ETI (Ethical trade initiative) has developed a code of practices to ensure CSR & to improve workability in as organisation. We provide ETI audit services in Ludhiana.