An electoral roll is a list of all eligible citizens who are entitled to cast their vote in an election. The electoral rolls are prepared Assembly Constituency wise. An electoral roll for any Assembly Constituency is subdivided into parts corresponding with the polling booths. The Election Commission of India has decided to generally have a maximum of 1200 electors per booth. The polling booths are so set up that no voter should ordinarily travel more than 2 kms. to reach the polling booth. Normally, one part will correspond with one polling booth.