The death toll was expected to go up, with around two dozen other people missing and feared dead after three days of heavy downpours in at least nine southern districts of the Himalayan country, said police spokesman Pushkar Karki.
Home Minister Janardan Sharma on Sunday visited the flood affected areas to review the situation.
Flood and landslide triggered y Monsoon rain has left at least 49 people killed, media reports said on Sunday.
The Nepal Red Cross Society is also working with local authorities to warn thousands of people of further threats from rising rivers and further landslides.
Numerous people being rescued from the hotels are tourists.
Five thousand and six hundred trained personnel of the Nepal Police, one thousand 700 APF personnel, and 8,300 Nepalese Army personnel, as well as helicopters, have been mobilized for search and rescue operation, the Ministry has stated.More news: Iheanacho vs Iwobi: as Leicester battles Arsenal in EPL opener
More news: Trump Intensifies Feud With Senate Republican Leader McConnell
More news: British Columbia opposition leader resigns after fall from power
The heavy rain, which mainly hit the country's southern plains, led to the evacuation of 5,000 people, a Home Ministry official said. Other roads remain blocked by the landslides, slowing down the rescue efforts.
Nepal's National News Agency reported Sunday that 600 tourists, including 400 foreigners, are trapped in the town of Sauraha in southwestern Nepal.
According to the ministry, some 35,843 houses have been inundated while 1,000 houses have been damaged in the low-lying areas known as Terai region of Nepal.
Meanwhile, Nepal Cabinet held an emergency meeting during which Prime Minister Sher Bahadur Deuba ordered the local district administrations to intensify the rescue and release activities.
Almost 100 people died a year ago in Nepal during the rainy season, which typically begins in late June and lasts until the end of August.