Termination of tax treaty requires diplomatic notice and causes treaty to cease applying to subsequent fiscal and calendar year incomes. Termination of the India-Armenia double taxation convention is effected by diplomatic notice after an initial five year period with six month advance notice. The Convention ceases for India as to income of fiscal years beginning on or after the first day of April following the calendar year of notice; for Armenia it ceases for withholding taxes on income from the first day of January in the calendar year following notice and for other taxes on income for tax years beginning on the first day of January in that calendar year.