This book, Objective Vegetable Science, has been thoughtfully designed as a comprehensive, concise, and exam-oriented resource covering all major aspects of vegetable science, from fundamental principles to advanced technologies. It systematically presents topics such as classification, crop production practices, breeding, seed science, plant protection, post-harvest management, and emerging areas like protected cultivation, hydroponics, and precision farming in a simplified and objective format. Special emphasis has been placed on clarity, accuracy, and inclusion of frequently asked concepts to help readers grasp and retain key information efficiently. The inclusion of diverse vegetable crop groups, along with integrated pest and disease management and value addition aspects, ensures a holistic understanding of the subject. This book is specifically tailored for undergraduate and postgraduate students of agriculture and vegetable science, aspirants preparing for competitive examinations such as ICAR JRF, SRF, NET, ARS, and other allied services.