Bigg Boss 15: Pratik Sehajpal's sister Prerna takes a dig at Karan Kundrra; says, 'Most insecure and jealous human being ever'

Bigg Boss 15: Pratik Sehajpal's sister Prerna takes a dig at Karan Kundrra after he reveals that Pratik was rejected from the audition of a reality show hosted by him