A perennial plant known as Indigofera tinctoria, or true indigo, matures to a height of 1-2 metres. Branches are typically woody, spreading or rising. They have pinnate leaves. It is a significant source of the deep blue dye. In terms of medicine, it’s used to treat a variety of problems including epilepsy, mental disorders, asthma, bronchitis, fever, stomach ache, liver, kidney, and spleen diseases, skin conditions, wounds and sores, haemorrhoids, gonorrhoea, syphilis, and snake bites. The plant is also utilised as green manure as a cover crop. Additionally, it collaborates with specific soil bacteria to produce rood nodules and fix atmospheric nitrogen.