Yamlok is the underworld in Hindu mythology, ruled by the god of death, Yama.

Yama is the ruler of Yamlok and is responsible for judging the souls of the dead.

The four main divisions of Yamlok are Svarga (heaven), Naraka (hell), Patala (the underworld), and Atala (the lowest level of the underworld).

Vaikuntha is not a type of Naraka (hell) in Hindu mythology. It is the abode of Vishnu, the preserver god.

The river Vaitarani separates the world of the living from the world of the dead in Hindu mythology.

Chitragupta is the guardian of the gates of Yamlok and is responsible for recording the deeds of the dead.

The Kalpavriksha is the celestial tree that grows in Yamlok and is said to grant any wish.

Gandharvas are celestial musicians and are not associated with the underworld in Hindu mythology.

Yama is the god who punishes the wicked in Naraka (hell).

Yakshas are not a type of preta (ghost) in Hindu mythology.

Mara is the demon who rules over the underworld in Buddhist mythology.

Svarga is not a type of hell in Buddhist mythology.

Avalokiteshvara is the bodhisattva who helps the dead cross the river Vaitarani in Buddhist mythology.

Yakshas are not a type of preta (ghost) in Buddhist mythology.

Mara is the demon who rules over the underworld in Jain mythology.