As the error was completed because of the god Indra, he grants Hanuman a wish that his overall body might be as sturdy as Indra's Vajra, and that his Vajra may not damage him. In conjunction with Indra other gods have also granted him needs: the God Agni granted Hanuman https://laneswxit.blogdal.com/37542078/not-known-factual-statements-about-hanuman