Celebrated climber Nirmal 'Nims' Purja today scaled Mt Shishapangma becoming the fastest climber in the world to complete all 14 peaks above 8,000 m without using bottled oxygen. CAAN imposes ban on Nims Purja's Mustang Helicopter CIAA told to take action against Nims Purja, tourism ministry officials According to the base camp officials, Purja scaled Shishapangma at around 4:15pm becoming the fastest climber to complete all 14 peaks without oxygen in just two and a half years. Without using oxygen in 2022, Nims climbed Mt Kanchenjunga on May 07, Mt Everest on May 27 and Lhotse on May 28. In 2023, he also made it to the summit of Annapurna on 15 April and Mt Makalu on June 05 without using O2. Last year in October, he made it to the summit of Cho Oyu in Tibet. In just 26 days in 2023 (June - July), he made the fastest ascent of 5 peaks – Nanga Parbat, K2, Broad Peak, G1, and G2 in Pakistan without using oxygen support.