Miley Jab Hum Tum S04 E21 Nupur Suspects Something Fishy

During the party, Nupur suspects Sheena of planning something. Meanwhile, Benji calls and fools Uday into thinking that he is a girl. Later, Diya announces the start of a game. Sheena devises a plan to make Gunjan stand near the swimming pool. What is Sheena planning?