Alvira is always fishy , she does what supports her plan .
Could be hiding sahir's marital status or convincing Sahir about Arzoo when needed - when sarfaraz truth was out sahir was not happy arzoo hiding truth and trust issue .
Zaki is her favourite beta but when he wanted to marry arzoo she used her best emotional ways to stop zaki and stood by sahir. SAAZ nikaah has something to do with her plan .
When arzoo enters NH for first time anum's words to Alvira that you came with a marriage proposal to me saying I will have first right on sayaara what does that mean?
I feel zeenat and Shiraz are siblings and Alvira their step mother ...zaki is her only son ..sahir being an orphan she raised him along with all the other kids .Sahir's parents death could be related to alvira's husband too who is never shown so far .
Alvira is manipulator but planning to kill sahir confuses me bcoz she knows well non ...non other than sahir is capable to manage sayaara and will be drown for sure.