Don't talk nonsense. Brahmins typically don't look different to the non-Brahmins of their regions. Generally speaking, you get higher percentage of better looking people among upper classes than lower. It's no different in Bangladesh. Some Bangladeshis also show some West Asian (Afghan) admix on their phenotype due in part to a considerable number of Afghans settling in Bangladesh over several centuries. So, if anything, I would say there is a higher percentage of Bangladeshis that look better than West Bengalis. This is why it's not uncommon to get Bangladeshis that look Pakistani whereas it's much less common among West Bengalis. That's what I've observed anyway. But all in all, west Bengalis, including Brahmins, and Bangladeshis are very similar.