Kalki Jayanti is observed as the birth anniversary of Kalki, the tenth and last incarnation of Lord Vishnu. The name ‘Kalki’ is derived from the Sanskrit word ‘Kalka’. The name ‘Kalki’ represents the one who eliminates filth and dirt from the universe. It is believed that Lord Vishnu will appear in the form of Lord Kalki to remove the evil forces from the universe and bring back peace. Kalki Jayanti is celebrated in the holy month of Shravan on the sixth day of Shukla Paksha fortnight. In 2018, Kalki Jayanti falls on August 16.
According to Garuda Purana, Kalki is the tenth avatar of Lord Vishnu. Devotees worship Lord Vishnu on Kalki Jayanti and observe fast. The description of Kalki is inconsistent among the Puranic texts. In Vaishnava texts, Kalki is said to appear on a white horse, while in some texts he is said to be an invisible force destroying evils and chaos.
Kalki Purana is a Sanskrit work that details the life and times of Kalki, the tenth and final avatar of Lord Vishnu. In Kalki Purana, Kalki marries Princess Padmavati, the daughter of King Brihadratha of Sinhala. He is said to fight the evil army and then return to Sambhala to inaugurate a new yuga for the good and goes to heaven.