mate why on earth would India launch a sudden Blietkriz like operation inside BD
.i mean we have got our hands full of problems right now.plus to launch an operation of that scale the I.A. will require to deploy at least 7-10 divisions of infantry formations why is next to impossible considering the threat that India faces in the Western and in the North Eastern theatre.most of our troops are deployed in Forward bases facing either Pakistan or China.so it won't be a child's play to suddenly withdraw them from those positions and re-deploy them in the Eastern and in the North eastern theatre.
lastly the BD Army is quite large and a well equipped one and to defeat them we have to deploy at least a hundred or so of our 4th generation front line fighters which we simply can't do in the near future.so judging by all these parameters it's quite safe to assume that an invasion of BD by the Indian Armed Forces is nearly impossible.
but you guys do face a serious threat from Myanmar whose Army is larger and more battle hardy.plus they have got pretty decent equipment at their disposal.so if an invasion does happen it will take place most probably from Myanmar(though this is my personal view)....