I think Jiji thinks saloni is most inteligent and most stubborn person in the house and can go thru any level to protect her house. If she removes saloni her job becomes easier. Also she has tasted brijesh's love for tara and their relations and figured out she won't be able to break them apart. As Brijesh is too clever compare to Nahar. Nahar listens to every one and judge Saloni. So it is easier to break Nahar saloni. Jiji first wants revenge on the family so she think if she hurts Nahar then the whole family will be hurt badly and won't be able to think properly.Thanks!!
How strange! Why would jiji want Nahar and Saloni's relation to break...she would want Tara and Brijesh's relation to break so that she can move in back with him...how idiotic!!