As the mistake was accomplished by the god Indra, he grants Hanuman a desire that his body could well be as sturdy as Indra's Vajra, Which his Vajra could also not harm him. Along with Indra other gods have also granted him needs: the God Agni granted Hanuman a desire https://laxmi70123.blogolize.com/examine-this-report-on-hanuman-75929834