"Jayalalithaa won't quit as Chief Minister to face a court case, but should Maran do the same? People will understand this," the DMK said in a statement.
In a joint statement, party spokespersons Muthuramalingam and K S Radhakrishnan sought to remind Jayalalithaa that she herself was facing a disproportionate assets case in a Bangalore court.
On Jayalalithaa's demand for Maran's resignation, they said it would not be proper on her part to make such statements without considering that she herself was facing corruption charges.
On Wednesday, Jayalalithaa had demanded Maran's resignation following reports that his family-owned Sun TV Network was a beneficiary of pay-offs by a Malaysian company which benefited from equity sold by Aircel and had demanded that Prime Minister Manmohan Singh seek Maran's resignation.