Sapindus mukorossi, also known as Reetha, is a species of tree in the family Sapindaceae. The fruit is commonly known as Indian soapberry^[1] or washnut,^[2] and like other species in the genus Sapindus, it is called soapberry. It is also a native of Western coastal Maharashtra – Konkan, and Goa in India. Sapindus mukorrossi, known as the ritha or reetha tree in India (Hindi) and Nepal,^[3][4] is a deciduous tree that is grown in the lower foothills and midhills of the Himalayans,^[5] up to altitudes of 4000 feet.^[6] It is tolerant to reasonably poor soil, can be planted around farmers’ homes,^[7] and one Ritha tree can produce 30–35 kg of fruit per year.^[8]