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.
The three sisters are among 12 Khyber Pakhtunkhwa women who recently joined the Bomb Disposal Squad.
His province-wide counter-terrorism strategy, introduced in early 2014, is widely acclaimed for driving down terrorism.
Under the new law, police will be more independent and free from political interference, authorities say.
Security officials have vowed to avenge 'each drop of the nation's blood' following suicide bombings across the country.
Administrative restructuring, additional police patrols and sophisticated weapons have improved security in Peshawar's rural areas, police say.