How a trekker was rescued from deathly clutches of HAPE

A trekker, Taposh Giri, finds difficulty in walking near Patar Nachauni – a campsite on Roopkund trail. He is exhausted, and walking a few steps drains him out. He asks for a mule to take him further, towards the upper camp. However on reaching the camp at Bhagwabasa he starts feeling disoriented. And does not respond to any questions posed by the trek leader.