I saw very little variation in bengalis of West Bengal. One type is people from north bengal of "West Bengal" & other type is rest of "West Bengal". Even there is less variation in their accent too. On the other hand, there is more variation in Bangladeshi people. People from Dhaka, Chittagong, Sylhet, Noakhali, Greater Mymensingh, Rangpur Division, Khulna Division or Barisal Division can be differed by their attitude, culture or accent. People from Noakhali is more workaholic than any other Bangladeshis. You will find people from greater Noakhali in every district of BD & every part of world. Population & GDP is higher in middle & eastern part of BD. Mongoloid feature in face is more visible in Sylhet & Chittagong Division. Original Dhakaya guys are minority in Dhaka city. 90% of original Dhakayas are businessman. People from Chittagong & Sylhet have tendency to invest in their own city. On the other hand, people from other areas have more tendency to migrate and buy property in big city. Unfortunately, ladies from all over the country watch boring serials of Star Jalsa, or Zee Bangla. I dont know about ladies of West Bengal.I doubt, they dont watch those boring serials.