Jayal was the founder principal of the Himalayan Mountaineering Institute at Darjeeling, with Tenzing Norgay of Everest fame as the Chief Instructor. Both of them were invited by the Swiss Government to Switzerland where they spent three months seeing new things and having new experiences. Maj Jayal became the only non-Swiss to win the coveted Swiss Guide's Diploma and Badge. Jayal led the 1955 Kamet expedition as the Director HMI. Jayal organised an expedition to Nanda Devi in 1957. Bad weather thwarted the expedition but Jayal, never one to give up, went next to the Karakoram where he conquered Saken (24,130 ft) and Sakang (24,150 ft), the third highest peak in the Karakoram range.