Chennai: All India Anna Dravida Munnetra Kazhagam (AIADMK) chief and former Tamil Nadu chief minister J Jayalalithaa and her aide Sasikala have paid nearly Rs 20 million as compounding fee to the income tax department to ensure closure of four cases filed against them 18 years ago for not filing returns. These cases were pending before the Chennai Metropolitan Magistrate's Court, and are now likely to be closed. The income tax department is expected to pass a final order on the compounding applications. Two cases pertain to the non-filing of personal income tax returns against Jayalalithaa and Sasikala for 1993-94 assessment year and two other cases pertain to the non-filing of income tax returns as partners of Sasi Enterprises for the years 1991-92 and 1992-93.