A voter casts his ballot at a polling station during the by-election in Mingala Taungnyunt township, constituency of Yangon region, Myanmar, April 1, 2012. A multi-party parliamentary by-elections began across Myanmar Sunday morning at 6 a.m. local time with over 6.4 million eligible voters of 45 constituencies starting to go to polls and cast votes at respective polling booths.[Xinhua]