Commencement of tax laws: central income, wealth and gift tax applicability in Sikkim established for residents. The Income-tax Act, 1961, is appointed to come into force in Sikkim for the previous year relevant to the assessment year commencing 1st April, 1989, bringing resident incomes within the central tax charge. The Wealth-tax Act, 1957, is appointed to come into force in respect of net wealth of a resident on the valuation date of 31st March, 1990. The Gift-tax Act, 1958, is appointed to come into force in respect of gifts made by residents of Sikkim on or after 1st April, 1989.