You would have to ask Tagore saab that. Depending on your age and your health, you may have to wait few or many years for that.So if the British had invaded Uzbekistan that would have been included? Seems to me the anthem was shaped by the tips of British bayonets. Whoever got conquerd got to be included in the anthem.
And please tell me you included the dharmic Burmans? Or did Tagore discriminate against them?