Hanuman ji is also known as Pawan Putra as he was born with the blessings of Pawan Dev. Similarly, one of the Pandav in Mahabharata, Bheem was also called Pawan Putra for the same reason.

This episode of Holy Tales by Himanshu Sharma will tell you how immortal God Hanuman ji helped his brother Bheem after the epic Mahabharata war.