Karishma Tanna will be very lonely in the Bigg Boss house from now on. Reason? Her very best friend Upen Patel has been eliminated from the show. In a surprise mid week elimination, Upen was asked to leave the house. Upen, remained in the spotlight over the last few weeks due to his changed demeanour, which exuded of aggression. The show will see few more eliminations (season 8 contestants) which will lead to the Hallo Bol series where four more challengers, namely Sambhavna Seth, Sana Khan, Rahul Mahajan and Mahek Chahal will enter the contest. Challenger no 5 Ajaz Khan has already entered the show. The Halla Bol series will be anchored by Farah Khan, who will replace Salman Khan. Bigg Boss airs on Colors and is produced by Endemol India. Keep reading Tellychakkar.com.