Mangala and Kamili are fighting against Akheraj
Urmi is fighting for her own rights as beendini She despises Kundan fr what he did to Nimboli but she has not yet dislodged him from the place of husband.
She has her own ideas about how women should be treated which she has seen in her father's home. Her father seems to respect his wife's wishes despite having old fashioned beliefs
She wants to be treated with respect and that includes both Kundan and Akheraj
Nandini is fighting against the circumstances as well as the system. If going by the spoilers Nandini is cursing her mother for putting her in an environment like this.Even her fight doesn't seem to be against Akheraj or Kundan but the whole circumstances that she finds herself in and holds her mother responsible for all this(which we all wanted to see😛)
Akheraj considers Kamili a big threat right now. So to scare her he is putting Pushkar in danger because that is the only weakness/fear that Kamili has.
Mangala - She has only fear - fear of separating from Nandini so he may use that.
Nimboli - Nimboli has no fear of losing anything so she will continue to raise her voice.She may be a child but she has the habit of opening her mouth at the most inappropriate times. So he may want to get rid of her and that way Kundan also can be kept out of trouble.
But will Kamili run away from her father is the question.
If she runs away who will she take with her apart from Pushkar?
Does Mangala want to leave that house? I don't think so.