For ten days, Chandika Kumari Shrestha's family believed the worst. The 64-year-old woman was presumed dead after a catastrophic flood swept through her home in Nepal's Betrawati. The deluge buried homes, shops and entire stretches of the town under mud, rocks and debris.Nepal Police officers assist Chandika Kumari Shrestha after she was rescued alive from a damaged house following deadly flash floods and mudslides, in Betrawati in Nuwakot district, Nepal. (via REUTERS)The family had begun observing the traditional mourning period for her death when rescuers searching the ruins of her home heard a voice. “Save me.”Police officer Mahendra Darnal and…