Narasimha jayanti:

Narasimha Jayanti, a deeply revered day in the Hindu calendar, marks the divine incarnation of Bhagwan Vishnu as Narasimha, the man-lion. This incarnation is celebrated for its embodiment of the power and protection of the Divine, symbolizing the victory of good over evil. Vaishakha Shukla Chaturdashi is celebrated as Narasimha Jayanti. According to Drik Panchang, "Lord Narasimha was the 4th incarnation of Lord Vishnu. On Narasimha Jayanti day Lord Vishnu appeared in the form of Narasimha, a half lion and half man, to kill Demon Hiranyakashipu." Sri Narasimha Jayanti is the auspicious appearance day of Lord Narasimha, the half-man, half-lion incarnation of Lord Vishnu. Lord Narasimha appeared at dusk on the Shukla Chaturdashi (the fourteenth day of the bright fortnight) in the month of Vaishakha. The Supreme Lord appeared as Narasimha to protect His dear devotee Prahlada from the persecutions of his demoniac father, Hiranyakashipu. By performing severe penances, Hiranyakashipu had received a benediction from Lord Brahma that he ... Hindus regard this as the day the deity Vishnu assumed his fourth avatar in the form of a "man-lion", known as Narasimha, to vanquish the oppressive asura king Hiranyakashipu and protect his devotee Prahlada.