BN coalition members are obliged to resign as an MP if they are expelled from their respective parties.<br /><br />This was part of a bai'ah (oath of allegiance) that BN candidates had to publicly take at a ceremony at the coalition headquarters in Kuala Lumpur last night.<br /><br />Non-Muslim BN component party members also appeared to have taken the oath.<br /><br />Recent amendments to the Federal Constitution stipulated that MPs who switch parties mid-term or become an independent will be forced to vacate their seat.