As the mistake was finished from the god Indra, he grants Hanuman a desire that his system will be as robust as Indra's Vajra, and that his Vajra also can not hurt him. Coupled with Indra other gods have also granted him wishes: the God Agni granted Hanuman a wish https://hanumantemplessydney.blogspot.com/2024/07/the-multifaceted-role-of-hanuman-mandir.html