The CEOs have been told to keep voter lists of their states, published after the last SIR, ready. Several State CEOs have already put up the voter lists published after their last SIR on their websites. The website of the Delhi CEO has the voter list from 2008, when the last intensive revision took place in the Capital. In Uttarakhand, the last SIR took place in 2006 and the electoral roll from that year is now on the State CEO's website. The primary aim of the intensive revision is to weed out foreign illegal migrants by checking their place of birth.