As the error was completed by the god Indra, he grants Hanuman a want that his body can be as strong as Indra's Vajra, and that his Vajra may not harm him. Along with Indra other gods have also granted him wishes: the God Agni granted Hanuman a want that https://jaidenkmfct.blogoscience.com/43470842/the-smart-trick-of-hanuman-that-no-one-is-discussing