A vigilance probe has been ordered again Sameer Wankhede - the Narcotics Control Bureau (NCB) officer leading the Aryan Khan drugs cases - after a Rs 8 crore payoff claim and a tweet by NCP leader Nawab Malik alleging forgery linked to a birth document. The NCB has filed an affidavit saying witness Prabhakar Sail has turned "hostile." The agency also said that Sameer Wankhede has an "impeccable service record".