Opinion Polls: Do They Tell People's Mood or Create People's Mood?

What is the purpose of the opinion polls being carried out everyday in light of the upcoming elections in UP?

What is the purpose of the opinion polls being carried out everyday in light of the upcoming elections in UP? Are they meant for gauging people's opinion or are they being used to create favourable opinion for particular parties? Urmilesh discusses in a new episode of #AajKiBaat.