Xia Boyu suffered severe frostbite and lost both his feet in a 1975 expedition. Pic/AFP

A Chinese climber who lost both legs to frostbite on Everest four decades ago is hoping to finally reach the summit after Nepal's top court overruled a controversial government ban on blind and double amputee climbers. Xia Boyu is the first double amputee to be given a permit to climb the world's highest mountain after the ban was revoked. The 69-year-old said the measure, introduced in December, was "discriminating against the disabled".