The Narcotics Control Bureau Zonal Director Sameer Wankhede, who was leading the Aryan Khan drugs case probe has been removed from the investigation following allegations of bribery. According to reports, Wankhede was removed after being linked to an extortion bid of Rs 25 crore by some NCB officials, including Wankhede, for letting off accused Aryan Khan, son of actor Shah Rukh Khan, in the drugs case.