Neelini / Indigo / Indigofera Tinctoria – Classification, Ayurvedic Properties & Dosage Description Ayurveda is a holistic science that many people widely follow all around the globe. This is a natural system of medicine that started many years ago, this term directly means to spread the knowledge of life that helps to gain longevity. Neelini is Indigofera tinctoria, popularly known as true indigo, belongs to the family Fabaceae or Leguminosae, this herb is widely famous for its treatment properties of