It would really be just desserts for Kinjal to have to move in with Urmila and be her servant and treated badly by her.
She has had no sympathy with Gopi and has made her life difficult in the Modi house because of her love life (Umang telling her to do so), she cannot distinguish right from wrong (would hurt her own family for her love life) and therefore needs to have her eyes opened about her Umang and deserves what what he has got planned for her.
Kokila also is too much, constantly mocking Jigar for not being hard working like her son, Rashi for not being able to do any work and she constantly tells Mota Bhabhi that she should but out of anything to do with her children and her daughter in law, because of her character, she deserves the shame that is coming her way to do with Kinjal.