Can control, you mean. BD is pretty much an Indian puppet state, both sides are only pretending otherwise.
I would say it other way around...As you can see BD is a puppet state, India's N-E can be puppet of BD, if BD plays its card rightly...Indian N-E requires support of BD, and BD can make their wild card to India by creating more dependancy of itself with right price and allowing transport corridor to India's N-E....And if i am not wrong, Mrs Hasina is doing exactly the same now...She is just playing with India by her strength...Allowing transport access to India and then demand something more tangible from India in return...