Ginger is a tropical perennial herb, rhizome is considered as important spice in the world. In India 70% of the total ginger production is from the North-East. Ginger rhizome contains many important volatile and non-volatile oils along with other compounds such as pungent compounds, resins, proteins, cellulose, pentosans, starch, gingerol, shogaols, etc. Three varieties of ginger are cultivated in different areas of Golaghat district of Assam, locally called as Zeng Ada, Bhola Ada and Moran Ada (Ada = ginger). Bhola Ada plants were found to have more height and rhizome size. Moran Ada was found to have more economic importance than other two varieties due to higher amount of oil content. This variety has less quantity of edible part due the presence of more fibers, roots and bulks. But still it has more economic value because of great taste and medicinal demand. Extraction of oil was done by using Clevenger’s apparatus. Oil content extracted from dry ginger rhizome was 1.2% in Zeng Ada, 1.1% in Bhola Ada and 1.5% in Moran Ada.
