As the mistake was accomplished because of the god Indra, he grants Hanuman a desire that his system would be as robust as Indra's Vajra, and that his Vajra might also not hurt him. Together with Indra other gods have also granted him wishes: the God Agni granted Hanuman a https://vashikarantotke34541.blogpixi.com/37253370/hanuman-for-dummies