This book contains the description about the fruit tree species Syzigium cumin (Medan / Jamun) including origin and distribution in the world, botany, medicinal uses, phytochemical compositions, agronomical aspects, pest and diseases, food value. Increasing the diversity of available food plants is highly beneficial for future world to treat boosting the human population. St. Cumin is such a food plant which require more attention. As a fruit crop potential it has a tremendous contribution to healthy life of the consumer. Further, wide variation of the tree in nature could potentially be support to reinforce the food security even in occurrence of global climate change scenario which the globe is being seriously affected at present. It is necessary to have more attention on this than the plant received attention at present concerning its multipurpose benefits. Scientist have more responsibility to exploit the plant on a scientific basis. This book gives supportive hand to the people who are working and to thinking to start work on this important plant. As this book includes wide range of disciplines, it could be used as a text book for students in high Study Institutes.