It is all hashim's plan, then i think that qazi also was his man only.
This is all hashim's plan and is using rukhsaar.
Remember, his first meeting with kabeer he said that he knows everything about kabeer personal life and everything.
Rukhsar is a pschyco path. Her end is either death or assylum, just can't handle her screen space so much. Miraj is quite better though he is also and obsessive lover to some extent.