[16] In 2014, Joisher survived a failed attempt during which 16 Sherpa climbing guides died in the Khumbu Icefall section.

In October 2014, Joisher became the first vegan and the second Indian civilian to summit Manaslu at 8163 m, the eighth highest mountain in the world.

[19] In an interview about his 2015 attempt, Joisher declared that his motivation to climb Everest was to disprove the notion that a vegan diet is nutritionally deficient,[14] and wanted to use clothing and equipment not made from animal products.

[17] This attempt also saw Joisher reach for crowd funding; he offered to give away his Everest summit ice-axe to anyone who donated over Rs.

[20] His attempt to be the first vegan to summit from the south side failed due to an avalanche that was caused by the 2015 Nepal earthquake, which resulted in 21 deaths.

[14] Joisher trekked with his fellow survivors for 3–4 days from EBC to Lukla from where they were transported to Kathmandu by IAF helicopter.