In Urdu and Arabic Language, Indigo Powder is Called Wisma /Neel Ka Poda. Its Botanical name is Indigofera tinctoria. It is green in color because it is a grounded powder of indigo plant leaves. It releases the blue-purple dye. It is also used for coloring your hair into shades of brown to black naturally. It is100% chemical-free method to dye hair. It does not affect the hair cortex so it is damage free method for hair. Moreover, this is Halal Hair Dye too and considered to be Sunnah Because it has the same method and properties of KHATAM well known in Tib-e-Nabvi. In Tib-e-Nabvi it is mentioned as indigo or wasma too.