As the error was performed because of the god Indra, he grants Hanuman a wish that his overall body could be as solid as Indra's Vajra, and that his Vajra also can not hurt him. Together with Indra other gods have also granted him wishes: the God Agni granted Hanuman https://vashikarantotke34554.livebloggs.com/43488385/bhairav-secrets