AIMIM chief Asaduddin Owaisi, who has cast his vote in Hyderabad, has appealed voters to exercise their franchise. The high-stake political battle to choose the 17th Lok Sabha began on Thursday with 91 constituencies going to polls in the first phase of voting. Other than Lok Sabha seats, voting for Assembly polls will also be held in Andhra Pradesh, Sikkim, Arunachal Pradesh and the first phase of Odisha. The polling will begin at 7 am and continue till 6 pm. Elaborate security arrangements have been made and lakhs of security personnel have been deployed to ensure free and fair polls.