This document provides a review of premature graying of hair (Akala Palitya) according to Ayurveda. It begins with an introduction discussing the importance of hair and the prevalence of premature graying. It then covers definitions, classifications, etiological factors including diet, lifestyle, environment and psychological causes. The pathogenesis or samprapti of premature graying involving the doshas, dhatus and dushyas is explained. Finally clinical features and types of premature graying according to the doshas are described based on Ayurvedic texts.