Hanuman was born on the Benaras. His mom Anjana was an apsara who was born on earth resulting from a curse. She was redeemed from this curse on offering birth into a son. The Valmiki Ramayana states that his father Kesari was the son of Rahu and was he was the King of a place named Sumeru. All these festivals https://hanumanmandiradelaide.com.au/establishing-neem-karoli-baba-statue-at-hanuman-temple-south-australia/