One of the 28 narakas. (hell) The others are Raurava, Sukara, Rodha, Tala, Vishasana, Mahajwala, Taptakumbha, Lavana, Vilohita, Rudhirambhas, Vaitarani, Krimisham, Krimibhojanam, Asipatravana, Krishnam, Lalabhaksham, Daruna, Puyavaha, Papa, Vahnijwala, Adhashiras, Sandamsha, Kalasutra, Tamas, Shwabhojana, Aprathista, Aprachi, as per Vishnupurana Ansh 2 Chapter 6.

This is a naraka for those who lie or use a false name. They are pushed into Avichi from a mountain 100 yojanas high. The Avichi seems like an ever moving ocean, but when they fall on it, their bones are broken and their bodies crushed. They are then revived and thrown again, as per Devibhagavata Ashtamaskanda.