Bengalis are a diverse bunch, mongoloids and caucasoid (indo aryan) groups. Dravidians subtypes exists tooAre you joking mate? Bengalis look like your archetypical "pajeet", DNA studies have shown you guys are on the Indo-Mongoloid cline.
98% of the "Indian" restaurants in the UK are run by Bengalis from Bangladesh and nobody even notices the difference.
As for differences between Indian food, most of it is borrowed from cultures they despise.
Unlike Indians and you guys, we don’t trigger bomb alerts when we pass by, nor do we feel compelled to knock off someone’s head at stupid excuses