THE Shiv Sena and its parliamentary party leader Madhukar Sarpotdar are heading for trouble for publicly spouting their brand of communal politics. First, the Shiv Sena MP justified his party’s use of retaliatory violence while deposing before a judicial commission about his role in the January ’93 riots. Aghast, lawyers and civil rights activists are examining the possibilities of getting the Sena disqualified as a political party with no right to representation in Parliament or the state legislature.