PATNA: Voting for the five Lok Sabha seats in Bihar to decide the fate of 50 candidates began, amid tight security on Friday morning.Polling started at 7 am in Kishanganj, Katihar, Purnia, Bhagalpur and Banka and will continue till 6 pm, a senior official said.Over 93 lakh voters, including 45.15 lakh women and 306 belonging to the third gender, will decide the fate of 50 nominees, including three women, in these five seats.