billo rani could be the new girl
she impresses asad to gain entry in the house
posing as a well mannered cultured and traditional girl(just as asad likes)
she procures the doll (of course it takes months ,its a serial )
asad starts respecting her and planning his future
but her work being done she leaves the house and somehow her secret is disclosed.
this is all written to make it compatible with the synopsis.