Care to explain this part.
Look at the map. All your political people's talks about a trade route with ASEAN rest on quick sand unless Bangladesh wants it to happen. How your export/import commodities will move to and from ASEAN without a route through BD? Yes, you can do it via sea routes without BD. But, if it is low cost land route, it must cross BD. Alternatively, you can use the chicken neck and detour the route. But, will it benefit India and its trading partners in any way?
So, demobilize your 300,000 troops from our border, get rid of DADA mentality, talk in a friendly tone with BD and request for a passage. A superficial leopard skin does not suit a poor and developing India. Discard this skin of yours and come down to the real world. Only then India will be respected and co-operated.