Does anyone here knows how a land conflict betwen the indian and chinese armies would develop?
Just playing an armchair general here -
If at all its planned, it won't be in the winter.
And if it's in the winter, the conflict will either fizzle out fast or will see India or China open new fronts away from Himalayas as the conflict evolves.
India can only play Defence in the northern Tibetan border (Winter or not). It doesn't have the logistics for an offensive push. Supplies are short for a very import dependant India.
South Tibet is a better area for the conflict from India's point of view (a Defensive war with pointed planned offensive thrusts) as it can leverage the forests for cover of its infantry and focus on a guerilla type offensive (VietCong anyone?). Missiles would also be stationed in East India (closest to threaten Eastern Coast of China). China won't be able to leverage its superior mechanization and logistics there.
Unless Chinese come out to be a truly unprofessional and extremely weak force, I think the odds are in favor of China.
Infact, if there are signals of a massive Chinese push, I'm pretty sure India would try to go Nuclear - India would show a readiness to use Nukes by detonating a Theatrical nuke in some secluded yet contested border region which is claimed by both India and China.
By that point, I'm sure that nations around the world would've threatened to sanction India and China (rather than jump into a fight and risk WW3).