Notification No.S.O.489(E) – Income Tax In exercise of the powers conferred by clause (v) of the Explanation to section 48 of the Income-tax Act, 1961 (43 of 1961), the Central Government, having regard to seventy-five per cent. of the average rise in the Consumer Price Index for urban non-manual employees, hereby specifies the Cost Inflation Index as mentioned in column (3) of the Table below for the financial year