1. First of all our homeland frontiers extend to the Rajmahal Hills. That was the western extent of the last sovereign state we had under the great patriot and Shaheed, Nawab Sirajuddawla.
2. If a referendum is taken today, P/bengal, Assam and Arakan would join us because of their Muslim population. Tripura is Bengalee and consider BD as their country rather than Delhi lying off further than the moon. And for reasons of economics, connectivity/logistics,etc the entire NE would want to join us.
3. Great land-masses like SA, Europe, etc are constantly changing borders within. For periods the constituent units come together, and then there is a period when they fall away. This and the results of wars within and invasions from without would throw away current demarcations.
4. We need to be alert and prepared for the inevitable moment to arrive.