Kalki Purana

Adharma was originally created from Brahma's back as a malinapataka (a very dark and deadly, sinful object).

After listening to accounts of violence and injustice occurring in the universe, Vishnu promises to be born into the family of Vishnuyashas and Sumati in Shambala.

[5] At a young age, Kalki is taught the holy scriptures on topics such as dharma, karma, artha and jñāna, and undertakes military training under the care of the Parashurama (the sixth incarnation of Vishnu).

[6] Soon, Kalki worships Shiva, who gets pleased by the devotion and provides him in return a divine white horse named Devadatta (a manifestation of Garuda), a powerful sword, whereby its handle is bedecked with jewels, and a parrot named Shuka, who is all-knowing, knowing the past, the present and the future.

Kalki then marries princess Padmavati (an incarnation of Lakshmi), the daughter of King Vrihadratha and Queen Kaumudi of Simhala (the island of the lion) and princess Ramā, the daughter of King Shashidhvaja and Queen Sushanta.

[8] Kalki fights in many wars, ends evil, including Kali and his entire family bloodline, which is wiped out by the avatar's generals; he perishes from wounds inflicted by Dharma and Satya Yuga personified.

Kalki then returns to Shambala to rule, inaugurates a new yuga for the good and divides the earth among his generals.

[10] According to Edwin Bernbaum, the Kalki Purana is a Hindu version of Shambala and its future references, there is no mythology in Hindi Scriptures has many features found in the Buddhist counterpart.

They combined their idea of Shambhala with Kalki to reflect the theo-political situation they faced after the arrival of Islam in Central Asia and western Tibet.