Anti-Defection Law is contained in the Tenth Schedule of the Constitution, which was introduced nd 7 by the 52 Amendment in 1985. It lays down the process by which legislators may be disqualified on grounds of defection by the Presiding Officer of alegislature (Speaker of the Lok Sabha or the Chairman of the Rajya Sabha) based on a petition by any other member of the House. The Chairman or the Speaker of the House takes the decision to disqualify a member