More than 600 polling booths have been set up in the sensitive areas of Maoist-hit Bastar division, which will vote on November 7 in the first phase of Chhattisgarh assembly elections. They will be under a three-layered security cover, the police said on Sunday. As the first phase of Chhattisgarh elections is about to kickstart, IG Bastar Sundarraj P spoke to NDTV on security arrangements.