Acorus calamus L. (Araceae) is commonly known as "Bach" in Hindi. Rhizomes have been taken up for standardisation. The crude as well as formulated mother tincture was standardised to lay down standards in Homoeopathic system of medicine. The determined data under phyto-chemical study viz- Extractive value, Ash value, Thin Layer Chromatography and Spectrophotometry are helpful to authenticate the drug.
