i said she wants to seperate sharmista and shekhar i guess. as she feels that her sister died because of shomi,
she is trying to hurt swara as she feels swara is the weak point of shomi. she wants to destroy swara life to the core and wanna hurt shomi very badly.
and inorder to destroy swara she is trying to prove her as a bad omen for everyones life and then when everyone disowns her in mm and in baadi swara will be all alone so inorder to support swara shomi might leave shekhar and then her revenge will be fufilled.
i guess this is her plan that is why she is trying to impress dadi as aged people are the ones who easily fall for this crap of shagun and apshagun and is using ragini's feelings by taking her jiji's crap.
i feel she has very big intentions but one think she underestimated is swara's strength to fight and her protector hubby sanskaar. till they are together they can defeat all the odds just like swasan are engaged even after all the stupid twists.