CCTV footage shows an individual suspected of being the suicide bomber who targeted Turi market in Parachinar on June 23.
The suspected individual can be seen dropping from a white car, wearing a Levies uniform and running on the road.
Levies and political administartion have said the individual is not a member of the Levies force.
The twin blasts rocked Parachinar on the last Friday of Ramazan, killing at least 75 people and injuring over 300.
The first blast occurred as people were busy shopping for Iftar and Eid in the Turi Bazaar area, close to a crowded bus terminal in Parachinar.