Thousands remain missing and aid is hampered by treacherous conditions in communities almost wiped out of existence

Searching for the body of his wife in the mud, Dil Bahadur Shrestha lamented that he did not even have a shovel left. For now, he has been using his hands to try to find her as he picks through the ruins of his house.

On Wednesday morning last week, Jamuna Shrestha, his wife of 50 years, had been at home in Betrawati on the banks of Nepal’s Trishuli River, feeding her beloved chickens and goats.

Dil Bahadur Shrestha, who is searching for his wife of 50 years, Jamuna.

Army helicopters ferry survivors from inaccessible areas to a camp at a barracks in Bidur

The three women sat together in the army tent and wept. They cried out for their sons, their husbands, their homes. As flash floods coursed through the Himalayan mountains on Wednesday morning, a monstrous black wave took everything from them.

As a melting glacier high up in the Himalayas between Tibet and Nepal splintered and crashed into the valley below, it set off a deadly cascade of water, mud and debris down the Bhote Koshi River. The impact of the glacier collapse was so strong that experts initially reported it as an earthquake. The Nepali village homes that lined the riverbank and clung to the mountainside stood little chance.

South Asia correspondent Hannah Ellis‑Petersen is on the ground in Bidur, one of the most devastated towns in Nepal, after the deadly flash floods that struck on Wednesday morning. Most homes were completely washed away when a tide of mud, rocks and debris flooded the river valley. Those who survived describe clinging on to buildings and trees as the water rushed over them

For the first time in more than a decade, a government minister in India has resigned following pressure from a street protest movement. The demonstrations erupted after the chief justice compared unemployed youths to cockroaches.

For many young Indians, the remark became the tipping point after years of high unemployment and repeated exam paper leaks that had shattered the hopes of millions of job seekers. The Guardian spent a week embedded with protesters as they faced police crackdowns, arrests and intimidation, documenting an extraordinary week that culminated in the education minister Dharmendra Pradhan's resignation.

The unprecedented expression of dissent against India's government, headed by the prime minister, Narendra Modi, has shown no sign of abating, as protests by the youth-led “cockroach” protest movement entered its fourth day.

The Guardian’s south Asia correspondent Hannah Ellis-Petersen was on the ground in Delhi, where thousands still thronged the streets, many having travelled hundreds of miles to be there.

While the Cockroach Janta party has primarily focused on accountability for the devastating recent leaks of exam papers and called for the resignation of the education minister, Dharmendra Pradhan, the overriding feeling as the week develops is that this is now bigger than one issue. 

For some, this is the moment that India’s youth – totalling more than 600 million – found its political voice.