The Kalki Purana (Sanskrit: कल्कि पुराण Kalki purāṇa) is a prophetic work in Sanskrit that details the life and times of Kalki, the tenth and final of the Dashavatara (the ten Avatars) of the Hindu deity Lord Vishnu. The narrative is set in near the end of the Kali Yuga or Dark Age, as revealed by the storyteller Suta.
The extant text comprises three aṃśas (sections) consisting 7, 7 and 21 chapters respectively. Although it is considered an Upapurana or 'Lesser Purana', it is derived from passages taken directly from the 18 'Major' Puranas, including the Vishnu Purana and the Bhagavata Purana ascribed to Vyasa. It is believed that the Kalki Purana existed prior to the 16th century CE as parts of it were referenced to in the Avadhi.
As a prophetic work, the Kalki Purana writes details about events believed by Hindus to occur in the future. The work is essentially a derivation of passages collected from various Puranas describing the same subject. The work primarily describes the onset and exponential increase of evil and sin on the earth during the Kali Yuga, and the life of Kalki, who is said to bring an end to the darkness of the Kali Yuga, destroying evil and sin, and beginning a new yuga (age) of sinlessness and peace known as the Satya Yuga.
Chronologically Krishna is described as the eighth Avatar of Lord Vishnu. This happens in Dvapara Yuga. According to Kalki Purana, Kali demon will rule the earth and bring sin and misery to the people. When the first stage of the Kali Yuga begins, the varna system will deteriorate. Soon after this, the second, third, and fourth stages of the Kali Yuga begin. During the second and third portions, men will forget the name of God and no longer offer Yagna to the Devas. During the fourth portion, Canibalism will be virtually universal among the humans. To solve this problem the pious Devas will gather before Brahma for a solution. Near the end of this yuga, the Devas will then journey to Vaikunta to seek help from Lord Vishnu. Lord Vishnu will then descend to Earth to end the Kali Yuga.