Narasimha Jayanti is
a Hindu festival commemorating the birth of Lord Narasimha.
On the sixteenth day of the bright, waxing half of the lunar
month of Baisakh (April–May), a religious ritual is held.
Although his birthday differs from those of Vishnu's human
incarnations, this day is commemorated as the birthday of Vishnu's fourth
avatar, Narasimha.
Narasimha is a monster having the head and shoulders of a
lion and the torso and lower body of a man, rather than a human.
He isn't born in the traditional sense, but rather emerges
fully formed from a pillar to defeat Hiranyakashipu and defend his devotee (bhakta)
Prahlada.
Also also the Man-Lion avatar.