In the previous chapter, we read that first someone broke into Sana's house but then he/she didn't find anything there so he/she decided to go to Kashif and Kamran's then he broke into their house after searching every room, he/she went to the guest room where he/she found Sana. He/she summoned :
Grandma: Sana! Wake up!
Sana: Who is there? (rubbing her eyes)
Grandma: It is me your Granny
Sana: Grandma, What... How did you get here?
Grandma: Are you forgetting something?
Sana: I am sorry Grandma I forgot!
Grandma: Well let me remind you! I informed you on the phone that I was coming to Karachi and I had to land in the evening but my flight got delayed and I landed at night, I waited for half an hour but no one came so I got disappointed and came by myself, now what do you want to say in your favor?
Sana: I'm so so sorry grandma but I have a genuine reason for all this
Grandma: I don't think so but still I will hear you out
Sana: Kashif