As the mistake was accomplished from the god Indra, he grants Hanuman a would like that his human body would be as sturdy as Indra's Vajra, and that his Vajra could also not hurt him. Along with Indra other gods have also granted him needs: the God Agni granted Hanuman https://hindutempleinsouthaustralia.blogspot.com/2024/07/the-power-and-influence-of-lord-shanidev.html