Show evidence Bangladeshis were Hindus ever in history before 1000 AD invasion of caste Hindu Sena dynasty. Show archaeological data of Hindu worshiping places which suggests that Hindu worshiping places existed before 1000 AD. Your masters in Pakistan maybe were Hindus not Bangladeshis. Hindus are alien to BD and very recent migrants, mostly during British time the caste Hindus settled in Bengal. Similar to Myanmar and Sri Lanka. The settled Hindu converts may have roots in Hinduism but not Bangladeshis in general. Even pure convert Muslim from Hindu is hard to find. As Bangladeshis are mixed people and close to East Asia. Im working on a project which suggest Human migration occurred from Bangladesh region who defeated Neanderthal and spread-ed Human all over the world, similar to today.