An intelligence-based operation led security forces to a cave in Mastung District, where they killed at least 12 key ISIS commanders plotting attacks on Pakistan, according to officials.
Operation Radd-ul-Fasaad effectively stopped a surge in terrorist violence in February, data shows.
Long delayed, the project is finally taking off with plans to install 5,000 CCTV cameras throughout the city.
From 2005 through 2016, militants and gunmen killed 149 tribal elders nationwide.
The security crackdown leaves no room for militant safe havens on either side of the Pakistan-Afghanistan border.
The former Tehreek-e-Taliban Pakistan (TTP) spokesman surrendered to Pakistani authorities and called on other militants to follow his lead.
Security forces killed or apprehended a number of militants in March, while security analysts recorded a drop in militant attacks.
The al-Qaeda leader, killed in Afghanistan, was behind the 2008 Marriott bombing in Islamabad and the 2009 attack on the Sri Lankan cricket team in Lahore.
Pakistani security analysts welcome the dropping of the bomb on 'Islamic State of Iraq and the Levant' (ISIL) hideouts in remote Afghanistan.
Military and intelligence-based operations have weakened militants' ability to hit hard targets, security analysts say.