The owner gives her two new clothes and tells her that they will make a new dress from the design, after that the design is never mentioned again.
What the original Anu don't know is Sarita just improved her design and earn lots of money as those designed and idea are unique.
Anu might not do anything to Sarita if this is all she does, but no, when the original Anu is in trouble and come to Sarita to ask for money for the treatment of her nephew, Sarita doesn't give her any money, instead, she accuses her of stealing money from her.
Anu understands that Sarita wanted to get rid of the original Anu, that's why she does this. Very well this Anu will remember it.
When Anu occupies this body, the original Anu already shows her one design, and the remaining are still yet to give. Anu now decided that she will teach this woman a lesson.