From what I understand there has been casualties on both sides. We had 1-2 & Chinese had more. There was 25-30 Chinese POWs too, which have been returned. GoI hasn't claimed any of that, presumably to give a China a chance to de-escalate. But de-escalating would mean the peaks that were captured would remain with the Indians. A fait-accompli so to speak. It would also mean whatever gains the Chinese have made earlier this year would be essentially nullified as the peaks overlooks all of that and more. Operators on these peaks can open fire directly with ATGMs, Snipers, MANPADS etc. They can also direct artillery shells right on target with laser marking. All this combined with Apaches flying around with Hellfires soon to be joined by LCH. Not looking good for those Chinese light tanks. That's why the Chinese are pissed, months of their work un-done in one night. Not to mention loss of face.
Curiously the Chinese govt. spokesperson also claimed India had no casualty. Revealing casualty put pressure on GoI for further action, so maybe the Chinese want to give room to de-escalate. Or maybe we used the POWs as bargaining chip. I betting on the later.
The Tibetan origin member who died is probably a member of the SFF working under Indian intel agency R&AW. He was definitely a part of that mission that night. Of course in India censorship is meaningless. We are no China & we do have a free media. Thus news of his death will get out, only a matter of time. Part of me thinks its good, we should know our heroes.