Though he wonders if it is his Prachi, this Panchi (in reality it is Prachi) refuses as she is still worried about Mallika or other reasons such as per her fake marriage to Proteek, his family, kids... you know all those Prachi kind of reasons.
But Milsi falls in love with this Panchi woman though he tries to control his best. Same thing with Panchi Dasgupta.. At the end of the day, they both confess and Prachi accepts that she is Prachi and not Panchi. Proteek happily lets her go...