Circular : No. 537-Income tax . Reference is invited to this Ministry’s Circular No. 517, dated 16-6-1988 and Circular No. 527, dated 9-12-1988 wherein the rates of income-tax deduction during the year 1988-89 from payment of income chargeable under the head “Salaries” under section 192 of the Income-tax Act,1961, etc., were intimated