Sajeevan, who runs the Nilgiri Furniture World in Coimbatore, is believed to have had easy access to the Kodanad bungalow as he had supplied furniture to the estate.
The police team had grilled Sasikala with the questions about the documents and valuables that were robbed from the Kodanad estate and the officials said that she was cooperating.
While speaking to the reporters after interrogation, Sasikala said, "I have responded to the questions that were asked since the morning. The interrogation isn't over yet and it will continue tomorrow."
The summon to VK Sasikala has come days after the probing team had interrogated former ADMK MLA Aarukutty for nearly ten hours in connection with the case.
Edappadi Palaniswami and O Panneerselvam are still finding it hard to stand in the same line regarding the political future of the party and Sasikala's plan to take over the party.