How do you know that the candidate you are voting for is the right one?

True.But how do you know your candidate. By reading his profile as put in the media? That would either be a window dressed one, or would contain the barest essentials like what is his present networth. If he a second or nth timer and you had kept track of his "growth" then you might have some data toroughly assess whether he is a "fit" candidate. Otherwise all you have for your choice of the "right" candidate to vote is only your hunch or some hearsay. The next best thing you can do is trust a party whose manifesto and commitments you are in line with your thinking. But even here we need to make compromises, we may not like everything that the party stands for. Recently I voted and on the basis of party and learnt that this fellow was someone who embezzled public funds.

Even I don't know that who is the candidate of out Area, Because I hadn't took intrest ever to know about this, no one speak on politics in youth crowd.