This isn't so important in the context of India. In India political parties have better and more effective methods to influence the voters. One method that is currently the favorite is to bribe the voter. In the currently held election political parties were offering $8 to $16 per vote. Another method is called as "booth capturing". Where a bunch of goons or politically influential people storm a polling booth and start pressing the buttons on the voting machine in their favor. The prime ministerial candidate from the currently ruling party was caught doing exactly that. The penalty would be that he might have to privately apologize. Another popular method is to spread fear among the voters. Some employers have threatened their employees to vote for a particular party or risk losing their job. Most people are not aware that its a secret ballot and hence comply. May be its true too, who knows? The voting machine could be watching you.
The rich become powerful and the powerful become rich. Democracy is a charade.