Indigo dye is an organic compound with a distinctive blue color. At once evidenc of blue found in primitive caves had proved that you can find a indigo color soil around few parts of India around 9000-8000 years age,but now it is extinct.Today, Indigo is a natural dye extracted from the leaves of some plants of the Indigofera genus, in particular Indigofera tinctoria. Dye-bearing Indigofera plants were commonly grown and used throughout the world, particularly in Asia, with the production of indigo dyestuff economically important due to the historical rarity of other blue dyestuffs. History word indigo is derived from Greek, meaning from India. Indigo cultivation is thought to have existed in the Indus Valley (present-day Pakistan and northwest India) more than 5,000 years ago. There, the color was called nila meaning “dark blue” and, as good things often do, it spread.By the time European traders arrived in Goa in the early 1500s, Indian indigo was one of the goods they to...