Thank you for the answer. @Kushagra_Kesav It worked now if I delete user its image also deleted. can you please help me on one thing too? i have image data also in child model. And I want to implement if I delete user the child also deleted with its data image on server. I user remove middleware for cascade delete and it is working fine. On deleting parent(User) the child also deleted but its image not deleting. here is the link to my code example How to delete data from child and also its image data on server if we delete parent in nodejs mongodb