Key Takeaways
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World record for climbing all 14 peaks in 6 months
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Former Gurkha and Special Forces operative
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Star of the Netflix documentary 14 Peaks: Nothing Is Impossible
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Pioneer in high-altitude Himalayan mountaineering and safety
Have you ever looked at a massive mountain and wondered what it takes to stand on top of the world?
When we talk about high-altitude climbing, one name immediately changes the entire conversation: nims dai. He is the fearless Nepali climber who completely turned the mountaineering world upside down by summiting all 14 of the world’s 8,000-meter peaks in just six months and six days.
In this article, we dive deep into the nims dai biography, tracing his journey from the Gurkha military ranks to global fame. At Mariano Iduba, we love stories of human endurance, and his legacy shows us that nothing is truly impossible.
AI Overview
Nims dai, legally known as nirmal purja, is a world-renowned Nepali mountaineer who shattered high-altitude records. In 2019, he completed “Project Possible,” climbing all 14 of the world’s 8,000-meter peaks in just under seven months. A former Special Boat Service operative, nims dai mountaineer extraodinaire redefined modern climbing through elite leadership, oxygen strategy, and pioneering high-altitude rescue missions.
Who is Nims Dai? The Man Behind the Legend
Before he became a global sensation, nims dai was just a determined young man growing up in Nepal.
Born in the Myagdi District, his early life was rooted in discipline and hard work. He didn’t actually grow up climbing big mountains in his backyard. Instead, he chose a military path early on.
He joined the legendary Royal Gurkha Rifles in 2003, a force known worldwide for toughness and bravery.
Later, he passed the brutal selection process for the UK’s Special Boat Service (SBS). He was the first Nepali ever to join this elite unit. His military background gave him the mindset needed for extreme survival.
The Birth of “Project Possible”
Most people spend an entire lifetime trying to climb just one 8,000-meter mountain. Many world-class climbers take decades to hit all 14.
The previous world record stood at seven years and 310 days.
Nims dai looked at that timeline and asked a bold question: why not do it in seven months?
People called him crazy. Experts said it was physically and logistically impossible. But with his trademark positive attitude, he launched “Project Possible 14/7.”
Breaking the 14 Peaks Record

On April 23, 2019, the journey began on Annapurna one of the deadliest mountains on Earth.
By October 29, 2019, he stood on the summit of Shishapangma in Tibet. He had finished all 14 peaks in 6 months and 6 days.
| Mountain | Height (Meters) | Country | Summit Date |
| Annapurna | 8,091 m | Nepal | April 23, 2019 |
| Dhaulagiri | 8,167 m | Nepal | May 12, 2019 |
| Kanchenjunga | 8,586 m | Nepal | May 15, 2019 |
| Mount Everest | 8,848 m | Nepal | May 22, 2019 |
| Lhotse | 8,516 m | Nepal | May 22, 2019 |
| Makalu | 8,485 m | Nepal | May 24, 2019 |
| Nanga Parbat | 8,126 m | Pakistan | July 3, 2019 |
| Gasherbrum I | 8,080 m | Pakistan | July 15, 2019 |
| Gasherbrum II | 8,035 m | Pakistan | July 18, 2019 |
| K2 | 8,611 m | Pakistan | July 24, 2019 |
| Broad Peak | 8,051 m | Pakistan | July 26, 2019 |
| Cho Oyu | 8,188 m | China (Tibet) | September 23, 2019 |
| Manaslu | 8,163 m | Nepal | September 27, 2019 |
| Shishapangma | 8,027 m | China (Tibet) | October 29, 2019 |
He didn’t just break the record; he completely smashed it into pieces.
Famous Achievements of Nirmal Purja
The story of nirmal purja doesn’t stop at Project Possible.
In January 2021, nims dai led a team of Nepali climbers to achieve what many considered the last great mountaineering challenge: reaching the summit of K2 in winter.
K2 in winter is a nightmare of hurricane-force winds and minus-60-degree temperatures.
Yet, his team sang the Nepali national anthem as they walked step-by-step to the top together.
Key Highlights of His Career
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Everest-Lhotse-Makalu Speed Run: Climbed all three in a mind-blowing 48 hours and 30 minutes.
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First Winter K2 Summit: Co-led and completed the first winter ascent without supplemental oxygen.
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Famous Traffic Jam Photo: Took the world-famous 2019 viral photo showing the human queue on Everest’s summit ridge.
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High-Altitude Rescues: Paused his own record runs multiple times to save abandoned climbers on dangerous slopes.
Impact on the Mountaineering Community
For decades, Western climbers dominated high-altitude headlines. Local Sherpas were often viewed merely as support staff, despite doing the heavy lifting.
Nims dai changed that narrative forever.
He put local Nepali climbers front and center on the global stage. He showed the world that Nepali guides are elite world-class athletes.
At Mariano Iduba, we deeply respect how his work brought well-deserved recognition and respect to local guiding communities.
The Legacy of a Modern Pioneer

What can we learn from the nims dai biography?
His legacy is built on determination, humbleness, and raw willpower. He demonstrated that limits are often just mental barriers we place on ourselves.
Today, he continues to lead expeditions, mentor young athletes, and advocate for safety standards across the Himalayas. The nims dai mountaineer identity is now synonymous with modern, high-speed alpine exploration.
Through his leadership, he opened new doors for future generations of climbers worldwide.
Frequently Asked Questions
What is Nims Dai famous for?
He is famous for climbing all 14 of the world’s 8,000-meter peaks in just 6 months and 6 days, as featured in the Netflix film 14 Peaks.
Is Nirmal Purja his real name?
Yes, his full legal name is Nirmal Purja, while “Nims Dai” is his widely known friendly nickname, meaning “Brother Nims” in Nepali.
Did he use bottled oxygen during his 14 peaks record?
Yes, he used supplemental oxygen above 7,500 meters during Project Possible to complete the extreme speed schedule safely.
Did Nims Dai climb K2 in winter without oxygen?
Yes, during the historic 2021 winter ascent of K2, he completed the final climb without using supplemental oxygen.


















