"BJP is aware of our position (of being with Congress) and knows there will be no dilution in our stand," Karuna said.
The DMK on Wednesday ruled out the possibility of returning to the NDA fold after Lok Sabha poll results were declared.
Dismissing reports that the BJP had sent feelers to the the party, DMK president M Karunanidhi told reporters after a DPA meeting in Chennai that "there is no question of joining the NDA."
"BJP is fully aware that we are strong on our position and also know that there will not be any dilution in our stand."