Income-tax rates and withholding rules updated, specifying TDS categories, surcharge application and agricultural income computation. The First Schedule prescribes statutory income tax rates for individuals, cooperative societies, firms, local authorities and companies; establishes specified TDS rates by income category for residents and non residents and a ten per cent. surcharge mechanism; aligns salary charging, deduction and advance tax computation with these rates and rebates; and sets detailed rules for computing net agricultural income, including classification of agricultural receipts, a special rule for tea income, set off and carry forward of agricultural losses for specified prior years, and procedural parity with assessment powers under the Income tax Act.