Now...to be fair on Bangladesh (even though I keep poking them all the time...but that's because they act funny here
), they haven't repaid us anything extra, it's just a relation of mutual cooperation that should exist between two close neighbours for both countries' benefit. You can say that being a much bigger neighbour we have some influence over them, but that's true all over the world. A smaller country picks up fight with its much bigger neighbour only to its own peril, and we have an example in our hand right across the border.