in response to anju212121: you are free to stick to your opnion.
i'd say saloni's character is perhaps a bit exaggerated but you can't call her stupid. if i'm not mistaken saloni was the one proved that kakisa was behind chandni's death and she proved nahar's innocence.
if that's stupid you'd have to call brijesh's whole family stupid as well since they knew kakisa a lot longer than saloni they had no idea what they were getting with kakisa.
as for bringing kaveri home saloni could be employing a certain strategy that's taught in business: keep your friends close but keep your enemies closer.
saloni probably figures that if kaveri is upto something its easier for her to know Kaveri's evil plans (if she has any) while she's staying with her than if kaveri was living at her father's house.