As the mistake was performed because of the god Indra, he grants Hanuman a want that his human body will be as robust as Indra's Vajra, and that his Vajra could also not damage him. Coupled with Indra other gods have also granted him wishes: the God Agni granted Hanuman https://shanidevmandirinadelaide.blogspot.com/2025/05/temples-that-transcend-time-and-space.html