Mumbai attack mastermind and Lashkar-e-Taiba operations commander Zaki-ur-Rehman Lakhvi was sentenced to 15 years in jail on Friday by a Pakistani anti-terrorism court here in a terror financing case. UN proscribed terrorist Lakhvi, 61, who was on bail since 2015 in the Mumbai attack case, was arrested by the Counter-Terrorism Department (CTD) of Punjab province on Saturday.