In a statement here, Karunanidhi said, my asset account is an open book which has been declared during successive legislative assembly polls.
"How informed Katju is could be understood as he is demanding to know the asset details now," he said in remarks laced with sarcasm.
"I have written screeplay and dialogues for 70 films and the property I own is the house that I own in Gopalapuram. No other Chief Minister is known to have spent his life in such a small house."
"Do I face a case of disproportionate assets?" he said hinting at the case against Jayalalithaa in a Bangalore court.
Former Supreme Court judge Markandey Katju in a facebook posting had wanted Karunanidhi to disclose details of his assets.