Well, the idea of India invading Bangladesh is hypothetical at best. And if it does happen, most Indians would oppose it. Let alone reunification of Bangladesh with India, which I don't think even Bangladeshis want. Also, an addition of 160 million people plagued with many problems would be a big burden on India.
Bangladesh military overall is technically no match against the military of India in a head-on confrontation. It can fight a long enduring guerrilla war at best within Bangladesh's own territories. Unless of-course a greater power intervenes.
It can potentially also make India look bad in the face of the globe.
I agree about the Awami League part though. It is no doubt pro-India, and even more so with its damaged relations with the USA. But I think matters in Bangladesh are handled independently for the most part.
Bangladeshi politicians only think about money, that's all they stand for really. Ironic that they happen to be Muslims, and all that lust for some worthless pieces of paper? Total falsehood I'd say, total falsehood. I hope they just disappear someday.