Income tax rates and surcharge framework updated, with TDS schedules and agricultural income computation rules clarified. Prescribes progressive income-tax slabs for individuals by age categories, distinct rates for co-operative societies, firms, local authorities and companies (with turnover-linked domestic company relief and special rates for certain foreign-company receipts), multi-tier surcharge bands with caps on incremental tax-plus-surcharge, comprehensive TDS rates for residents, non-residents and companies across interest, winnings, dividends, royalties, technical fees and capital gains, and detailed rules for computing net agricultural income including specified percentage treatments for tea, rubber and coffee, loss set-off, carry-forward rules and assessment procedures.