The Fiji Sun has given the head of Fiji's media authority, Ashwin Raj, a deadline for apologising over his findings against the paper.
The newspaper's lawyers have written to the Media Industry Development Authority saying its chairman had no authority or grounds to make what it calls a purported decision against the paper.
Last month, MIDA ruled an article in the Sun about the opposition was antagonistic and yoked in the logic of race and bereft of facts.
It also found a column about Sodelpa member Pita Waqavonovono was defamatory and incriminating.
The Sun's lawyers say Mr Raj's decision was erroneous and he had no right or power to make it.
It has given Mr Raj until March the 9th to retract and apologise over the findings.
The paper has also called for an inquiry into the decision by the Attorney General's office.
MIDA was set up under a decree in 2010 as an independent statutory authority aimed at regulating Fiji's media and ensuring high standards of reporting.