Matangi is one of the Mahavidyas, ten Tantric goddesses and a ferocious aspect of Devi, the Hindu Divine Mother. She is a form of Parvati and she governs speech, music, knowledge and the arts. Her worship is prescribed to acquire supernatural powers, especially gaining control over enemies, attracting people to oneself, acquiring mastery over the arts and gaining supreme knowledge.

Matangi is often associated with pollution, inauspiciousness and the periphery of Hindu society, which is embodied in her most popular form, known as Uchchhishta-Chandalini or Uchchhishta-Matangini. She is described as an outcaste (Chandalini) and offered left-over or partially eaten food (Uchchhishta) with unwashed hands or food after eating, both of which are considered to be impure in classical Hinduism.