Hello,
As we have witnessed parallel track between Asad/ Ayan households before and I am thinking it is happening again with Badi Bi and Zoya:
Badi Bi knew about razia, her evil intentions and how she is responsible to trap her son rashid all his life which caused tremendous hurt to his loved ones ( dilshaad/asad/najama). So she always tried to outsmart razia with the hope to get her family saved from razia's claws. She was successful to some extent when she sent razia to pagalkhana.
Same way zoya knew about tanu and her intentions. Zoya knew tanu is creating misunderstandings between her and asad by creating sympathy drama with him.Zoya tried to play tanu's game. She was also successful to some extent towards her mohabbat with asad until their nikah point. As all the functions happened with her and everyone's love was in zoya's favor.
Badi bi and Zoya both were so confident in their abilities to defeat razia/ tanu accordingly.
When razia's secret about humiera's disappearance was realized by badi bi which she wanted to tell the rest of the family in order to expose razia, razia tried to kill badi bi where razia thought badi bi was dead. Same way Tanu tried to kill zoya by pushing her off the cliff when zoya came to know about tanu's dirty game to trap asad and was about to tell asad. Tanu also thought that zoya was dead.
After these incidences, badi bi was paralyzed and lost her ability to speak. Same way, when zoya came to talk to asad but then asad's decision to marry tanu suddenly and then tanu's claim about knowing zoya's dad's address kept her mum.
Thus both badi bi and zoya could not communicate due to the circumstances.
Now here come smart/ witty and curious Rajani who is with the help of Ayan is after Razia to find out more as she believes that something is wrong and razia is not trustworthy.
May be the same way, handsome/fun and smart Farhaan who might be zoya's friend will doubt Tanu. ( hearing from zoya all about tabu and how she is blackmailing zoya giving her father's info and because of that how zoya can not share with asad and his family how evil tanu is ) and with the help of najama he will help zoya to expose tanu.
We have seen how Ayan is developing certain feelings for rajani may be the same way Frahan and najama might end up together.
Ayan/ Rajani and Farhan/Najma could be the voices of badi bi and zoya in order to expose razia/tanu.
What do you guys think?