No one in the world cares about BD, whereas there is a whole propaganda campaign behind each side of the Palestine/Israel situation.
Sorry if BD asks for it (which they won't because no one in BD power structure is as stupid as the trolls here), India will oblige and crush that nation quickly, withdraw even quicker and leave it to the wolves.
Not one other country is going to care about what happens to BD during that or after.
They (whatever fragmented anarchy is prevalent afterwards) will pose little threat to our bordering areas given we will be occupying our border areas and probably whatever required buffer zone into BD....while leaving the core areas to forment, churn and tear itself apart over and over. Seeing how viciously polarised the BD people are in this very forum, they really shouldn't want to create a situation for India to have no other option.
Knowing them and knowing India, India will probably already have intervened in various other ways covertly beforehand in such a brewing situation (over months and years possibly)...to the point that they will be looked upon as liberators just like in 1971...given how we turned BD people masses against each other in that one as well (with Pakistan army being one more ingredient to the mix) knowing fully well which side had more numbers and will thus over time prevail with final Indian overt military support.
Why do you think the outright hate of "Indian-loving dalal/BAL agents" is on full unabashed display here? Its sheer frustration at the level of polarisation of the country. A polarisation that India knows and utilises all too well....mostly to stop the need for any overt conflict (given the other bigger threats to India).
But BD as a whole wont start anything with India either no matter how many BD posters here dream, speculate and project otherwise. It will be the end for them....and it will be a completely one-sided ending.
X million soldiers means little in this era of warfare of high technology, force integration, control and high end investment/capacity. Case in point, BD has absolutely no defense against missile (guided and unguided) barrages...and everything they have is densely packed into a small area. India is not going in there without landing all the softening blows that are required first. We will not fight fair in that sense, we will completely obliterate everything possible from a distance first (be it air, land or sea). Without even a semblance of modern military structure remaining after such an onslaught and next to no strategic depth available in BD (unlike say the USSR when they faced the wehrmachts in barbarossa with much larger numbers than 2 million with much more maneuvering space even in the frontlines)....it will not be strategically difficult for India to complete a liquidation of BD armed forces and its reserves in a short amount of time.