This book examines the application of bio-edible and nano-enriched coatings to extend the post-harvest shelf-life of guava Allahabad Safeda. It focuses on the formulation and effectiveness of natural and nano-based coatings in preserving fruit quality, delaying physiological deterioration, and minimizing microbial decay. By leveraging sustainable, eco-friendly technologies, the book offers innovative strategies for enhancing post-harvest management and supporting the commercialization of guava.