The polling process began on vacant seat of Punjab Home Minister Shuja Khanzada, who embraced martyrdom in terror attack.
The constituency PP-16 Attock had fallen vacant after martyrdom of former Punjab Home Minister Shuja Khanzada in a terror.
The voting which began at eight in the morning will continue till five pm without any break.
Jehangir Khanzada of Pakistan Muslim league Nawaz (PML-N) and Dr Naeem Awan Independent are in the arena.
