Reacting to the poster controversy of her upcoming movie "Madam Chief Minister", actor Richa Chadha on Friday said it was an "unintentional oversight" and it was regrettable.

The film''s poster, which was released on January 5, was slammed by many on social media for apparently showing the Dalit community in a stereotypical way as Chadha''s character is shown holding a broom in her hand.