Barrister Feroze Jamal Shah took oath as the KP minister on Monday, 24NewsHD TV channel reported.
Barrister Feroze is the 10th member of the caretaker provincial cabinet.
The oath-taking ceremony was held at the Governor's House in Peshawar.
Governor Haji Ghulam Ali administered the oath. Caretaker Chief Minister Syed Arshad Hussain Shah and senior officials were also present.
The governor later greeted Feroz Jamal and expressed good wishes.
The participants also prayed for the departed soul of ex-CM Mohammad Azam Khan.