DAP has given Kota Melaka parliamentary candidate Sim Tong Him and former Teratai assemblywoman Jenice Lee 24 hours to withdraw as independent candidates and apologise to the party.
Its National chairman Karpal Singh said the party will not hesistate to expel them for going against the party.
Sim filed his papers as an Independent for the Kota Laksamana state seat.
He will also defend the Kota Melaka parliamentary seat under the DAP.
Lee who was dropped by the party, will defend her Teratai state seat in Selangor as an Independent.
Karpal warned that both will face disciplinary action if they fail to obey the party's instructions.