The suspected mastermind who paved the way for the escape of several high-profile convicted Tehreek-e-Taliban Pakistan (TTP) terrorists by plotting and executing the 2013 Dera Ismail (DI) Khan central jail (Khyber Pakhtunkhwa) attack was arrested during a raid by Counter Terrorism Department (CTD) on Boster Link Road in Sukkur town(Sukkur District) of Sindh on January 18, reports Pakistan Today.The suspect has been identified as Waqar Amin, a militant, who had been on the run since the attack seven years ago.Around 150 TTP militants armed with mortars and grenades had launched a major attack on the Dera Ismail Khan central prison on the midnight of July 20, 2013, freeing top figures of the terrorist outfit along with other inmates after a gun battle with Security Forces.At least 12 people including four Policemen were killed and seven others wounded in the attack by the militants disguised in Police uniforms.