GURGAON: A months-long investigation and an undercover operation to dismantle one of NCR's largest organised extortion rackets at Khandsa Mandi led Gurgaon police to arrest 13 suspected members of the notorious Kaushal gang this week.Police said Atul Khatana, allegedly responsible for operating the racket and collecting the money, and Sujit alias Bullet, believed to be a trusted associate of Kaushal,...