Avadhuta

Sarat Chandra Das et al. equate Chöd practitioners (Tibetan: གཅོད་པ, Wylie: chod pa) as a type of avadhūta:

ཀུ་སུ་ལུ་པ ku-su-lu-pa is a word of Tantrik mysticism, its proper Tibetan equivalent being གཅོད་པ, the art of exorcism. The mystic Tantrik rites of the Avadhauts, called Avadhūtipa in Tibet, exist in India.[3]

The rites of Chöd differ between lineages but essentially there is an offering of their body as food, a blessing to demons and other entities to whom this kind of offering may be of benefit, in a feast called the ganachakra. This sādhanā (practice) is common to another denizen of the charnel ground, Dattātreya the avadhūta, to whom has been attributed the nondualist medieval song, the Avadhūta Gītā. Dattātreya was a founding guru (ādiguru) of the Aghori according to Barrett:

Lord Dattatreya, an antinomian form of Shiva closely associated with the cremation ground, who appeared to Baba Kina Ram atop Girnar Mountain in Gujarat. Considered to be the adi guru (ancient spiritual teacher) and founding deity of Aghor, Lord Dattatreya offered his own flesh to the young ascetic as prasād (a kind of blessing), conferring upon him the power of clairvoyance and establishing a guru-disciple relationship between them.[4]

John Woodroffe, in his translation of the Mahanirvana tantra from the original Sanskrit into English under the pen name "Arthur Avalon", may be the introduction of the archetype of "avadhūta" to the English-reading public, as none of the avadhūta upanishads were translated amongst the collections of minor upanishads such as the Thirty Minor Upanishads.[5] The Mahānirvāṇa tantra is an example of a nondualist tantra, and the translation of this work had a profound impact on the Indologists of the early-to mid-20th century. The work mentions four kinds of avadhūta.[6]

The Brahmanirvantantra describes how to identify the avadhuts of the following types:[7]

1. Brahmāvadhūta : An avadhuta from birth who appears in any class of society. Completely indifferent to the world or worldly matters.
2. Shaivāvadhūta : Avadhutas who have taken to the renounced order of life (sannyasa), often with unkempt long hair (jata), or who dress in the manner of Shaivites and spend almost all of their time in trance (samadhi), or meditation.
3. Vīrāvadhūta : This person looks like a sadhu who has put red colored sandal paste on his body and wears saffron clothes. His hair is very well grown and is normally furling in the wind. They wear Hindu prayer beads made of Rudraksha, or of bones. They hold a wooden stick in their hand and additionally they always have a parashu (ritual ax) or damaru (small drum) with them.
4. Kulāvadhūta : These people are supposed to have taken initiation from the Kaula sampradaya or are adepts in Kundalini Tantra. It is supposedly very difficult to recognize these people, as they do not wear any outward signs designating them as avadhutas. The speciality of these people is that they remain and live like ordinary people do. They can show themselves in the form of kings, warriors, householders or beggars.