Wealth-tax rules establish regulatory framework under statutory authority and officially commence from April first, 1957. The Central Board of Revenue, under the authority of section 46 of the Wealth-tax Act, 1957, promulgated the Wealth-tax Rules, 1957, and declared that those rules shall be deemed to have come into force on 1 April 1957, thereby establishing the procedural and administrative framework for the operation of the wealth tax.