Was reading all the comments flowing in and out on the shooting, predictions etc.
If you check the below link, Shooting happens after Dilshad brings Mariam home as we all know, But Dilshad holding the phone, Asad also there talking to someone on phone at his house...
So i guess Asad knows Zoya sent Mars off to the other relative ,Dilshad brings her back etc..etc..etc...
Check the link..here
http://www.india-forums.com/forum_posts.asp?TID=3416779