Rupali Ganguly, star of Anupamaa, has filed a Rs 50 Cr defamation suit against her stepdaughter.Ganguly's stepdaughter, Esha Verma, accused her of being a bully in an Instagram post.Verma deleted the video and made her Instagram account private after the incident.Ganguly issued a defamation notice, claiming mental stress and humiliation due to Verma's statements.