"Ignorance of fact on ground" is only what comes to my mind reading your post.
Anyways, china might have got FC to LAC, you still need soldiers and equipment to fight and occupy the territory.
FYI - April to September is summers in Leh . So much for your knowledge of terrain and our troops are well acclimatize and trained to live in those subhuman temp.
17 of your troops who were "well acclimatize and trained to live in those subhuman temp" died of exposure and hypothermia, otherwise commonly known as having frozen to death, right in the middle of your "Leh summer". Did they just play dead, or stay dead?