b) Modi is playing up to his "no nonsense tough guy" image. The danger is whether he will become hostage to that image and make some rash moves -- especially if there's trouble on the domestic (economic) front.
Overall, though, I don't expect any serious military issues between China-India-Pakistan. A prolonged war would be bad for India's economy and Modi would lose the support of the business community. It would be political suicide for him.
Nehru didn't want a war either. According to the Indian Army's own internal Henderson-Brooks report, he "didn't expect any resistance" from the Chinese, basically he thought he could walk in and just take what he wanted.
Bear in mind China at that point was in the worst famine of our history, and many international observers expected the Chinese state to collapse, so obviously a good opportunity for those who seek our lands without resistance. Nehru was not wrong to pick that moment, it was our weakest point.
But, like I said, imagine Mexico started setting up military outposts in Texas (or the Indian Dhola post which was far beyond the MacMahon line), and ordered the Mexican Army to "throw out the Americans" from their own soil.
Even a starving China could not back down from that kind of a war declaration, otherwise we would have been eaten alive by our Cold War rivals (USA and USSR) who had already surrounded us in literally every single direction.
We even fed and clothed the Indian soldiers we took prisoner, giving up our own precious food when there was hardly any to spare for ourselves.
The OP is 'highly impressed' with one of the esteemed Admins (and owner). So don't be surprised if his anti India rhetoric rises exponentially.
They had multiple discussions and well - you see the results here.
You are right to an extent, I do agree with some of the theories given by @
Horus.
However it's not simply that I looked at his theory and thought "well that must be right"... no it's because it is also fairly similar to my own theories on the border issues.
Which seems to be coming true, see the original quote from the Reuters source. Modi's "new assertive posture" is causing an escalation in border tension, seen recently in the nature of both his border clashes with China and then Pakistan, including the killing of 20 civilians by firing on civilian villages across your LOC.