Chhepu is one among the three brothers Garuda, Chhepu, and Hitimanga. It is told that once the mother of these brothers, requested her husband to give birth to such a son who would be the bravest, most truthful, and entitled with all superior marks. Her husband told her to wait for a certain period. She is impatience to wait for a long period and looked the nest to whether he was born or not. She found Chhepu in a premature condition only with the formation of the head.

It is also told that Chhepu disappeared from the world as he did not want to see the kali yuga, the great yuga when the evil would be completely triumphant over the good and the world would be destroyed by Vishnu in his incarnation as Kalki, the destroyer. Knowing his bravery, truthfulness, and entitlement to all the superior marks Manjushree wanted to see him and requested Chhepu to show his full form. Chhepu appeared slowly amidst the cloud. Manjushree, as a veteran artist, immediately drew his form by his foot secretly without the knowledge of Chhepu. When Manjushree could finish drawing his head only Chhepu came to know Manjushree's deception and immediately disappeared. Due to his bravery, truthfulness, and all superior marks, he was given a place at the top of the main entrance of the shrines for protection from all the dangers, Nagas are the food of Chhepu.