Just watched BTS for upcoming epis, plus promo and stuff.
My take, she will refuse to marry Arshad as seen with Waseem. She'll then go Janmashtami celebrations, have fun, Arshad will also be invited via Anjana.
They will have the dahi breaking thing, Arshad will win. He will probs be wet from that hence the kurta change from blue to white as in the promo.
Prank will be revealed to Zoya, she will charge up to Adi and then slap him as seen in promo. As a result changing her mind and finally agreeing to marry Arshad.
Put all scenes together this will be the case i'm sure...
What do you guys think?