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 '''Asita, Nili''', Indigo, of which this species is a major source, has a very long history of use as a dye. Because of its fascinating deep blue colour, its Its great colour fastness to light and the wide range of colours obtained by combining it with other natural dyes, it has been called 'the king of dyes' and no other dye plants have had such a prominent place in as many civilizations as this genus.  

{{Common names|kn=ajuraAjura, anjooraneeli, bangaali neeli, hennu neeliAnjooraneeli ಅಂಜೂರ ನೀಲಿ|ml=madhuparnnikaMadhuparnnika, nilamNilam, niliNili|sa=anjanakesika, asita, bhadra, bharavahi, neelaAnjanakesika, neelineeAsita, nila, nilam, nilapushpika, shyamalika|ta=avuriAvuri, avuri Avuri ilai, nilamNilam|te=aviriAviri, konda Konda nili|hi=neelNeel, nilNil, nilNil-ka-jhar|en=Indigo|mr= Neel, Nili|gu=Gali}}

{{Leaf|pinnatePinnate|alternateAlternate|leaflets Leaflets opposite, 5-22 x 5-12 mm, elliptic to obovate, base and apex rounded, darkening on drying; stipules c. 2 mm long, subulate. }}<ref name="Leaf"/>

{{Flower|Bisexual|axillary Axillary spicate racemes|Reddish||Flowers 5-7 mm long, red; pedicels c. 1 mm long. Calyx 2-3 mm long, pubescent; lobes narrow lanceolate, acuminate. Petals reddish; standard c. 4 mm long, suborbicular. Ovary 8-12-ovuled, hairy.Flowering through out the year}}

{{Fruit|A Pod|2-3 cm long, c. 2 mm wide||linearLinear||Straight or slightly curved, 8-12-seeded, straight or slightly curved, 8-12-seeded.|Fruiting through out the year}}

Seed - pre-soak overnight in warm water and sow in a seedbed with partial shade. Germination takes about 4 days. Semi-ripe cuttings of lateral shoots with a heel. Root cuttings.<ref name="Cultivation details"/> ==Season to grow==<ref name="Season to grow"/> ==Required Ecosystem/Climate==<ref name="Required Ecosystem/Climate"/> ==Kind of soil needed== 

* [http://tropical.theferns.info/viewtropical.php?id=Indigofera+tinctoriaIndigofera tinctoria on theferns.info] * [https://www.indianmedicinalplants.info/herbs/index.php/978-indigofera-tinctoriaIndigofera tinctoria on medicinalplants.info]