This book is about Economical studies of Makhana (Euryale ferox Salisb.) also known as Gorgon Nut or Fox Nut, is one of the most important economic herbs of Nymphaceae family Makhana (Euryale ferox. Salisb.) is an aquatic and floating leaves, emergent macrophyte and grown in stagnant perennial water bodies like ponds, land depressions, oxbow lakes, swamps and ditches. A few studies have been conducted with respect to the economics of Makhana (Euryale ferox Salisb) production in India as well as in all over the world. Hence, the need for a comprehensive study with respect to economics of Makhana production in Bihar (India) was felt and that is why it has been considered worthwhile to conduct a study on economics of Makhana (Euryale ferox Salisb) production in Bihar (India) with the some important objective of studying the economics of Makhana (Euryale ferox. Salisb) production. This book will helps to the researcher, scientist, farmers as well as the students to know about the economics of Makhana (Euryale ferox Salisb) production and they could be take advantage. Thanks.....