Former Mumbai CP Param Bir Singh MUMBAI: Maharashtra Anti Corruption Bureau (ACB) on Tuesday refuted reports about a lookout notice against former Mumbai Commissioner of Police (CP) Parambir Singh, stating that no such action was taken by the agency. "Some reports are claiming that Maharashtra ACB has issued a lookout notice against former Mumbai CP Parambir Singh. The news is false. ACB has not issued any LOC against Singh," the Anti Corruption Bureau said. Earlier on July 23, a case of extortion has been registered against Param Bir Singh at Kopari Police Station in Thane City Police Commissionerate. It was the second case of extortion in which Param Bir Singh has been named.