@IamBengali you have a good point. I agree that Bangladesh can never be a fully sovereign country, but very few countries in the world are, except for regional and great powers, most of whom happen to be also very large nations.
So the destiny of Bangladesh is to be a vassal state.
From 1204 to 1757, we were either a full part of Delhi Sultanate or Mughal empire, or a vassal of those two entities. There were some periods of independence, but it did not last.
From 1757 to 1947, we were either de facto or de jure part of the British empire.
From 1947 to 1971, we were a part but more like a vassal of (West) Pakistan.
From 1971 to today, during Awami rule we were a vassal of India, at other times we were relatively more independent.
For future, there is no better option for Bangladesh than to become a full on vassal of China and form military alliance with China. To remain and become a vassal of a screwed up incompetent country like India is a bad choice that no Bangladeshi will accept, because that will mean Bangladesh will remain poor and underdeveloped. And everyone looks for their personal interest and future prospect first, so I maintain, all Bangladeshi people will choose to be a vassal of China, rather than a vassal of India.
Sir I don't think u can compare the times of delhi sultante/mugal empire with current status of BD. Besides bengal did retain soverginity for most part of its islamic history. While after 75 Pres. Zia did well to retain BD's soverginity. IMHO we were indeed relatively sovergien in most matters of international relations post-75 until 1/11 and MUA-FUA took over.
Btw many small countries do practice soverginity in intl relations eg. Malaysia, vietnam, cuba etc. What u can say is that small countries have to choose sides for the sake of its own interest which doesn't mean becoming a vassal IMO. Because when u safe guard your own economic and security interest u achieve the strenght to remain sovereign. And yeah i believe BD has to choose sides to counter Indian hegemony but whether its china or a more powerful ASEAN remain to be seem.