Lord Kalki: The prophecy of the Kalki avatar is believed mostly by the followers of the Vaishnavism sect of Hinduism (Sanatan Dharma), as a part of the ten avatars of Vishnu, who is the chief deity in Vaishnavism. Kalki, also called Kalkin, is the prophesied tenth avatar of Hindu god Vishnu who will take birth to end the Kali Yuga, one of the four and the last era in the endless cycle of existence in Sanatan Dharma/Religion, and start a new cycle with Satya Yuga.