At least 77 pilgrims from Sadhguru's Isha Foundation's Kailash pilgrimage group are missing after a massive flash flood swept through parts of central Nepal on Wednesday, the foundation said. The group was at an immigration office on their way back when the flood struck, inundating the building and much of the town, according to a post by Sadhguru on X. There has been no official information so far on the whereabouts of those at the immigration office. The foundation is working with authorities to reach the location and is ready to join rescue efforts regardless of the risk, Sadhguru said. Of the 21 groups in the sojourn, 495 people have already returned safely, he added. Sadhguru said all volunteers and support teams are deeply anguished and are doing their utmost to assist in the rescue.