Tax deduction at source from salaries updated with revised exemption slab, deduction rules, and procedural safeguards for withholding. Instructions prescribe withholding of income tax from salaries for financial year 1975-76 according to the amended rate schedule, raising the no tax threshold and setting revised slab rates plus a union surcharge; disbursing officers may adjust intra year deductions to correct prior errors. Taxable salary is computed after applying a standard deduction for employment related expenditure (subject to percentage, maximum and special limits where conveyance or employer vehicles apply), excluding certain exempt payments and deferring inclusion of amounts in Additional Emoluments deposit accounts until repayment. Qualifying deductions for life insurance, provident fund and specified post office deposits are allowed subject to an aggregate ceiling, education expenditure relief for dependents is provided within limits, charitable donations are not deductible at source (with limited exceptions), rounding rules apply, and penalties attach for failure to deduct or remit tax.