In section 16 of the Income-tax Act, for clause (i), the following clause shall be substituted with effect from the 1st day of April, 2004, namely:--
"(i) in the case of an assessee whose income from salary, before allowing a deduction under this clause,--
(A) does not exceed five lakh rupees, a deduction of a sum equal to forty per cent. of the salary or thirty thousand rupees, whichever is less;
(B) exceeds five lakh rupees, a deduction of a sum of twenty thousand rupees;".