Malli went missing on 24 March 2015 and died inside his pitched tent on the slopes of Cerro Tres Cruces Sur in the Andes. Malli, who was climbing solo, was caught up in the exceptionally bad weather, which also led to the 2015 Northern Chile floods and mudflow, in the Andes. With all access routes to the mountain being cut, it took close to 10 days for the rescue teams to reach him. His body was found on 3 April 2015. He was supposed to have returned to India by month-end after adding the last of the ten highest peaks in the Andes to his list of conquests.