I don't think this is the real Zeenat.
She might be a Zeenat Look alike.
It might be the plan of the people who trap Sagar.
Even if she is Zeenat, why she wants to kick Aman out of the house when she actual brought him up as her own kid until she died.
I think She is Zeenat, about aman she know that aman is not her son but zaaraa son so she hates him !!
Hope this Info. help!đ