"Men and women in large numbers queued up in front of many polling stations well before polling opened at 7 am in the entire state. Polling ends at 4 pm," said Sriram Taranikanti, Chief Electoral Officer. He said the authorities are not taking any chance and due to rise of trouble from some groups, 50,000 paramilitary and other state security personnel have been deployed while two air surveillance team led by senior officials are conducting recce by helicopters.