So, I think we all have a feeling that the woman Razia killed was Zoya's mom except that the timeline doesnt make sense. In the beginning of the show we were told that Zoya lost her mother 20 years ago and the doll factory murder happened three years after the fact. There's is also the very confusing bit that Zoya doesn't seem to find anything about the doll factory story familiar (if we have her age right, she would have been 6).
My theory is that Zoya's mom didn't die 20 years ago but pretended that she was. She may have done so to save her daughter. What if the doll factory wasn't the first time Razia and Siddiqui had plotted the murder of her and her daughter? Maybe they set fire to the house hoping to kill both...except Zoya escaped thanks to her mother and her mother disappeared. I am guessing Aapi's family knew that Zoya's mom was alive but to protect Zoya didn't tell anyone...not even Zoya. Maybe Zoya's mother went into hiding and everybody assumed that they were dead until she resurfaces which makes Razia and Siddiqui plot to kill her again. There is definitely money involved but I am not entirely sure now that Zoya is Siddiqui's daughter (and I always thought she was).
What do you guys think?
Also regarding the article that says that Zoya's relationships with Dilshaad, Asad and Rashid are changing...it could also be a positive change.