Lord Hanuman was son of Maharani Anjana and Maharaj Kesari. The epics also mention Hanuman as “ansh” of Lord Shiva, also described him as son of Lord Pavandev and there are lots of stories describing the roles of devtas in his birth.

The viraat roop of Lord Hanuman has been referred to as Panchmukhi Hanuman. In one roop or form all the heads are of Hanuman but in the other one the heads are of Varah(वराह), Garuda(गरुड़), Narsimha(नरसिम्हा), Hayagreeva(हयग्रीव) and Hanuman, hence depicting a combination of Lord Hanuman and Lord Vishnu.

According to a story from Ramayana, Lord Rama was in war with Ravana, the Lanka King. Ravana asked for Ahiravana’s help. Ahiravana(अहिरावण) took the form of Vibhishana(विभीषण),fooled Lord Rama and his brother Lakshman and took them away to paataal lok with him.

Lord Hanuman went to paataal lok in search of Rama and Lakshman. He fought a battle against Ahiravana, king of paataal lok but to kill him he had to extinguish or blow off 5 lamps in 5 directions simultaneously. It is said that life of Ahiravana was in three lamps out of those five and since they had to be put off all at one go, Lord Hanuman took the form of Panchmukhi Hanuman, extinguished the lamps all together and killed Ahiravana.