The presidential election-meddling scandal, which had dropped out of the limelight in recent weeks, has reemerged as a burning issue following the acquittal last Thursday of former Seoul police chief Kim Yong-pan.
Kim was charged with scaling back and whitewashing the results of a police investigation into allegations of state meddling in the 2012 presidential campaign.
The main opposition Democratic Party is furious and is demanding key figures in President Park's cabinet resign and a parliamentary probe be launched into the case.
The ruling Saenuri Party says it's not open to launching an investigation into the matter.
With the interpellation session kicking off on Monday, the National Assembly is expected to be locked in a political standoff with the Democratic Party demanding an investigation into the acquittal.
The Democratic Party has also submitted motions to dismiss the Minister of Justice Hwang Kyo-ahn for his role in the state probe into the government agencies' alleged interference in the 2012 presidential election.
The party is also demanding dismissal of the Minister of Education Seo Nam-soo for defending right-wing high school history textbooks.
The party is also planning on submitting another motion for the dismissal of Finance Minister and Deputy Prime Minister Hyun Oh-seok as the government investigation on the biggest personal information leak in the nation's history comes to an end.
Prime Minister Chung Hong-won and Cabinet members will be in attendance for foreign, unification and national security interpellation session.
Shin Se-min, Arirang News.