How can I missed it that In og they showed that FL and Bhagodi sister identity were hidden from the society because FL was younger and they can't tell that she married ML because her older sister ran away. So in og Grandparents and ML never said infront of society or in media that these two are sisters and their marriage is done like this as it will affect on Sahiba Image which ML don't want it.
Plus FL will be given as Badi Bahu or Mrs Brar title while Bhagodi sister will given as Choti Bahu or Garry's Wife. Keerat will get the youngest daughter in law and inspector. ..
So Seerat left the opportunity of becoming Queen.