When will  Lord Vishnu come back as Kalki Avatar ? Unveil ancient Sanatangyan prophecies of the Puranas and shashtras foretelling the birth, mission, and divine omens of Vishnu's last incarnation. In Sanatangyan tradition,  every Yuga (era) finds Lord Vishnu descending to reform dharma (righteousness) when adharma (unrighteousness) dominates. As Kali Yuga advances and darkness increases, the scriptures predict the advent of His tenth incarnation— Kalki Avata r, the eliminator