GYIRONG / KATHMANDU — Search and rescue operations entered their third day on Saturday across the rugged Nepal-Tibet border, where 77 pilgrims associated with the Isha Foundation remain untraceable following a catastrophic flash flood that swept away a border immigration center. The group was returning from the Kailash Mansarovar Yatra when a sudden glacial outburst and debris flow struck the border town of Gyirong, washing away critical infrastructure and severing all local communications.A Sudden Disaster at the BorderThe tragedy unfolded when the 77-member pilgrimage group—designated as group "S3" under the Isha Sacred Walks program—arrived at the Gyirong immigration facility on the Tibet-Nepal border after completing their pilgrimage.According to Isha Foundation officials, the last contact with the group leader occurred at 9:05 AM. Just nine minutes later, a massive surge of water and mud—believed to have been triggered by a glacial collapse upstream—rushed down the river valley. The torrent inundated the town of Gyirong, completely destroying the multi-story immigration building where the group was clearing border control.The missing cohort represents a diverse international gathering. While 53 of the travelers are of Indian origin, the group holds passports spanning 19 countries, including 22 citizens from the United States, 12 from Canada, 11 from Australia, and nine from the United Kingdom.Rescue Efforts Hampered by Damaged InfrastructureSearch and rescue personnel from the Nepal Army, Armed Police Force, and Chinese emergency services have deployed heavy equipment and aerial reconnaissance to the border zone. However, operations face extreme operational bottlenecks:Infrastructure Destruction: Key road access points along the Rasuwagadhi-Syabrubesi corridor have been washed away, isolating border hamlets.Communications Blackout: Fiber-optic cables and cellular towers along the Bhote Koshi river valley were destroyed, preventing real-time ground tracking.Extreme Debris Accumulation: Thick layers of mud, boulders, and river silt have covered the former site of the Gyirong port facility.Isha Foundation founder Sadhguru Jaggi Vasudev, who was personally present in the region supervising broader Yatra logistics, issued an emotional appeal to diplomatic authorities in India, China, and Nepal."There were no warnings, no alerts, and no indication that anything was wrong," stated Maa Gambhiri, coordinator for Isha Sacred Walks. "The group had only seconds to react as the building was swept away. We are working closely with all embassies to gain access to the ground site and assist rescue teams in any capacity."Yatra Operations OverviewStatus / CountTotal Kailash Pilgrims (2026 Season)21 Organized BatchesPilgrims Returned Safely495 IndividualsDevotees Currently En Route in Tibet743 IndividualsDevotees Currently Staged in Nepal148 IndividualsStatus of Missing S3 Batch77 missing at Gyirong facilityWidespread Impact Across the Himalayan BorderThe disaster along the Bhote Koshi river basin extends far beyond the border facility. Regional authorities in Nepal's Rasuwa district report that the sudden deluge destroyed multiple bridges, swept away construction camps, and displaced thousands of residents in riverbed communities.Government spokespersons in Kathmandu confirmed that more than 160 fatalities have been documented across affected northern districts, with over 300 individuals—including local border officials and security personnel—still listed as missing.As search teams enter a critical window on Day 3, diplomatic channels between New Delhi, Beijing, and Kathmandu remain open to coordinate cross-border disaster response, clear heavy landslides along the highway, and bring clarity to the 77 anxious families awaiting news of their loved ones.Also Read :- 77 Isha Foundation Pilgrims Still Missing After Nepal Flash Floods