Its botanical name is ‘Fera Tinctoria’. It is hundred per cent pure herbal leaves that give deep blue color. In some countries it is called ‘Wasma’ (Arabic & Urdu). Typically Indigo plant is seen one to two meters long. When it is used for staring, it gives deep green color till 24 hours, after 24 hours it converts into deep blue. Indigo normally forming is done for a medical and fabric dyes.