Renewing your STCW certificate is essential to remain eligible for sea service and avoid delays during sign-on, COC revalidation, or port state inspections. This guide explains the complete STCW renewal process in India, including DGS e-learning requirements, required documents, refresher courses, fees, timelines, and common mistakes to avoid. Whether you're a deck officer, engineer, or tanker officer, follow this step-by-step guide to renew your certificates smoothly and stay compliant with DGS