"Bring back our brothers and sisters now,” one placard read. “Unite in Light for Nepali lives," said another.
The Israeli volunteer at a local hospital was found dead in a forest near the Chitwan national park.
The worst plane crash to hit the country in 30 years had a fatal end.
There were 72 people on the twin-engine ATR 72 aircraft operated by Nepal's Yeti Airlines, including two infants, four crew members and 10 foreign nationals.