As the error was done because of the god Indra, he grants Hanuman a want that his overall body could be as robust as Indra's Vajra, Which his Vajra may also not harm him. Together with Indra other gods have also granted him needs: the God Agni granted Hanuman a https://hanumanmandirinadelaide.blogspot.com/2025/01/hanuman-mandirs-centers-of-devotion-and.html