Wealth tax notice demands provisional tax payment within 35 days, with 12% interest, penalty risk, and recovery measures. Notice under section 30 requires payment of tax provisionally assessed under section 15C at an authorised bank within 35 days (or a shorter approved period); a challan is enclosed. Nonpayment incurs simple interest at 12% per annum from after the due period, possible penalty up to the amount of tax after a reasonable opportunity of being heard, and recovery proceedings under the income tax recovery provisions read with the Wealth tax Act. Cheque payment must be drawn in favour of the authorised bank.