|Botanical Name ||Strychnos potatorum Linn.|
|Common Name||Clearing nut tree, Nirmali (Hindi), Tettrankottai (Tamil), Katakah (Sanskrit)|
Distribution Deciduous forests of West Bengal, central and southern India
Religious association The tree is associated with Lord Thyagesar.
Uses The decoction of the fruit pulp is used to treat dysentery, cough and diabetes. The seeds are used to turn muddy water clear.