Karan Johar to host Shukravaar Ka Vaar on Bigg Boss 17 this week, schooling contestants and addressing brewing tension. In a new promo, Karan Johar fumed over Abhishek Kumar's aggressive behavior and called him out for crossing the line. Abhishek had a breakdown after a fight with Tehelka Bhai and Arun Mashetty. Karan confronted Abhishek, stating that he's always seen crossing the lines. Abhishek responded, questioning Karan's authority. Additionally, Abhishek was involved in a fight where Tehelka and Arun grabbed his collar and threatened him. Karan is filling in for Salman Khan on the Bigg Boss stage this weekend.