Tamilnadu Minister Balakrishna Reddy has been sentenced to three years imprisonment in a 1998 stone pelting case. Following the judgement he loses his Minister post and MLA post with immediate effect. He cannot contest polls for three to years, unless acquitted by Higher Court.
This makes 21 seats vaccant in Tamilnadu. The judgement was delivered by a special court hearing cases against MPs and MLAs. Make that 21 by-elections, guys.