Polling process concluded at 514 polling stations in Multan for by-election in NA 148 and 149 constituencies besides 238 polling stations in NA-168 in Vehari. Entrance was banned at the polling stations at 5 pm today evening, however, the voters who were within the premises of polling stations were allowed to cast vote. Except a few incidents in which supporters of some candidates tried to disrupt the process and left some people injured, overall situation remained peaceful and people used their right to vote in a trouble-free manner.