Nila is the third consort of Vishnu. The first two are Shri (Goddess Lakshmi) and Bhudevi (Mother Earth). Information about Nila Devi is found in the Vedic hymn Nila Sukta. Nila pardons the mistakes and shortcomings of devotees.
Nila symbolically represents Daya (compassion) and Kripa (Grace) aspects of Vishnu.
Nila Sukta is chanted to propitiate Nila Devi. Those people who live in remorse and shame of sins committed get relief after chanting Nila Sukta.
Andal who is worshipped in
especially in Tamil Nadu, is combined form of Bhudevi and Nila.
Nila Devi is also addressed as Grithavati (intelligent and gentle), Mahadevi (chief goddess), Nappinnai (consort of
Payasvathi (source of milk), Vishnupatni (consort of Vishnu), Asha (All
pervasive) and Manota (Worshipped in mind).