In the Indo-Tibetan Vajrayana Buddhist tradition, there are thirty-two Kings of Shambhala, a mythical kingdom.
The first notable king of Shambhala, King Suchandra (sometimes wrongly Sanskritized as "Chandrabhadra," Tib. Dawa Sangpo), requested teaching from the Buddha. In response to this request the Buddha gave the first Kalachakra root tantra. By practicing the Kalachakra the whole of Shambhala became an enlightened society. Suchandra was followed by an additional six Dharmarajas (Truth Kings), with his eighth successor, Manjushri Yashas (sometimes wrongly Sanskritized as "Manjushrikirti"), the first of the 25 Kalki Kings (Tib. Rigden, wylie: rigs ldan) (see below).
The most recent 25 of the 32 Kings of Shambhala are known as Kalki kings (Tib. Rigden, wylie: rigs ldan), meaning "Holder of the Castes." The Kalki King is said to reside upon a "Lion Throne" in Kalapa, the capital city of the Kingdom. The Kalki are holders of the Kalachakra (Wheel of Time), which are the teachings of Buddha Shakyamuni passed down from the original seven Dharmarajas of Shambhala.
As explained by Buddhist scholar John R. Newman, the Kalki are often erroneously termed "Kulika" by Tibetan Buddhist scholars unfamiliar with the original Sanskrit texts:
".. . so far no one seems to have examined the Sanskrit Kalachakra texts. The Buddhist myth of the Kalkis of Shambhala derives from the Hindu Kalki of Shambhala myths contained in the Mahabharata and the Puranas. The Vimalaprabha even refers to the Kalkipuranam, probably the latest of the upapuranas. This relationship has been obscured by western scholars who have reconstructed the Tibetan translation term rigs ldan as "Kulika." Although Tibetan rigs ldan is used to translate the Sankrit kulika in other contexts, here it always represents Sanskrit kalkin (possessive of kalkah; I have used the nomininative kalki)."