As the error was accomplished from the god Indra, he grants Hanuman a would like that his entire body would be as sturdy as Indra's Vajra, and that his Vajra also can not damage him. Coupled with Indra other gods have also granted him wishes: the God Agni granted Hanuman https://hanumantempleinsouthaustralia.blogspot.com/2024/07/the-spiritual-haven-of-hanuman-mandir.html