Hiranyakashipu was the demon who was killed by the Narasimha Avatar of Bhagwan Vishnu. The story of Hiranyakashipu begins with Sage Sanaka cursing the doorkeepers of Vishnu, Jaya and Vijaya. The doorkeepers once did not give entry to Sage Sanaka to Vaikunta, the abode of Vishnu. Jaya was born as demon Hiranyaksha and Vijaya was born as demon Hiranyakashipu as a result of the curse. Vishnu appeared as Varaha to annihilate Hiranyaksha. To avenge the death of his brother, Hiranyakashipu undertook severe penance and secured several boons from Lord Brahma. The most important boon was that he could not be killed by man or beast, or by a weapon, during day or night, on the earth or in the sky, inside a house or outside. After receiving the boon, he conquered the three worlds and prevented all forms of Vishnu worship including utterance of the name of Vishnu. But his youngest son Prahlada had heard about the story of Vishnu when he was in the womb of Kayadhu. Hiranyakashipu