ATTOCK - All arrangements have been finalised for by-elections scheduled to be held tomorrow at PP-16 Attock II where two candidates Jahangir Khanzada of PML-N and an independent candidate Dr Naeem Awan would try luck. District Election Commissioner Rai Sultan Bhatti said registered voters are 2,06,669 including 1,14,027 male and 92,642 female voters. He said 137 polling stations have been established including 54 male, 47 female and 36 combine polling stations.