Kerala, Apr 10 (ANI): Polling began in all the 20 Lok Sabha constituencies in Kerala on Thursday. Voters began to trickle in most of the polling stations as soon as polling opened at 7 am, to choose their representatives. At many booths, voters queued up well before the start of polling. Voting will take place in 21,424 polling stations and over 2.42 crore voters are expected to exercise their franchise. About 1.5 lakh officials including 10,000 women have been deployed for poll duties.