The Aghori or Aghora are a Hindu

Hindu

Hindu refers to an identity associated with the philosophical, religious and cultural systems that are indigenous to the Indian subcontinent. As used in the Constitution of India, the word "Hindu" is also attributed to all persons professing any Indian religion...

 sect believed to have split off from the Kapalika

Kapalika

In Hindu culture, Kapalika means bearer of the skull-bowl, and refers to Lord Bhairava taking the kapala vow. As penance for cutting off one of the heads of Brahma, Lord Bhairava became Bhikshatana, an outcast and a beggar...

 order (which dates from 1000 AD) in the fourteenth century AD. Many mainstream Hindus condemn them as non-Hindu because of their taboo

Taboo

A taboo is a strong social prohibition relating to any area of human activity or social custom that is sacred and or forbidden based on moral judgment, religious beliefs and or scientific consensus. Breaking the taboo is usually considered objectionable or abhorrent by society...

 violation of orthodox practices. Aghoris or Aughads command extreme reverence from rural populations as they are supposed to possess powers to heal and relieve pain gained due to their intense practices.