The IHEC has approved 276 political entities to run in the elections this year.
The approved list include the prime minister's State of Law Coalition, the Sadrist Movement (Ahrar), President Jalal Talabani's Kurdistan Democratic Party, and the Iraqi National Accord.
New parties, including the former militant group Asa'ib Ahl al-Haq and the White Iraqiya Bloc which split from the Iraqi National Accord, also appear in the approved list.
However, militant attacks targeting candidates, election workers and political rallies have increased as the election date has neared.
Maliki has accused Saudi Arabia and Qatar of interfering in Iraq's internal affairs.
Riyadh and Doha have been trying to create chaos by sending Takfiri militants into Iraq, Maliki added.
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