As the error was done because of the god Indra, he grants Hanuman a want that his body could be as powerful as Indra's Vajra, and that his Vajra can also not harm him. As well as Indra other gods have also granted him wishes: the God Agni granted Hanuman https://pressnewsportals.blogspot.com/2025/06/silent-strength-and-living-devotion.html