As the error was finished because of the god Indra, he grants Hanuman a wish that his entire body could well be as robust as Indra's Vajra, Which his Vajra may not damage him. As well as Indra other gods have also granted him wishes: the God Agni granted Hanuman https://mynichedirectory.com/listings13329668/not-known-factual-statements-about-hanuman