Bigg Boss Synopsis: Day 73: Seeing the budding friendship of Manu Punjabi and Nikki Tamboli, Kashmera Shah questions what's brewing between them, which lights a spark in the house about their growing closeness. Subsequently, when Nikki tries to clear the air with Kashmera, a volcanic feud erupts and the latter threatens to use physical violence against her. Also, watch the entertaining episode as Rahul Vaidya returns to the BB house,