"Lord Hanuman was born in Anjanadri hills. There is proof in the form of Kishkindha [the current day Hampi]. It is believed that Lord Hanuman was born on Saturday, Krishna paksh Chaturdashi during the month of Kartik. The legend has it that Lord Hanuman was born on this day to Anjana and Kesari, when the mother was meditating for a child on Anjanadri hill.
Anjana was his mother and kesari was his father.Vayu was his spiritual father.
With the rising crime rate of ravan almighty vishnu thought of taking the avatar of ram and shiva thought of helping ram by taking the avatar of hanuman. while dashrath was distributing the birthgiving sweet to his wives, he gave half of it to his eldest wife Kaushalya and distributed the another half between sumitra and kaikeyi.Kaikeyi argued that she got less,because of this god thought that she was very ungrateful so he sent garuda as a normal eagle and garuda took half of kaikeyi's birthgiving sweet to anjana who was at penance for a son. AND LIKE THIS THE SHIVA INCARNATE HANUMAN WAS BORN.