According to the
Australian Government "Smart Traveller" website
Australians are advised to defer non-essential travel to Nepal. Australians who consider their travel to Nepal to be essential should exercise extreme caution. Demonstrations and civil unrest may occur at short notice. Australian should avoid all rallies and public demonstrations as they may become violent. Bans on public gatherings and government-imposed curfews can be called at short notice. Security personnel are authorised to shoot at people breaking curfews.
There is a violent Maoist insurgency in Nepal with frequent clashes between government forces and insurgents across the country, including in popular trekking and tourist areas. Maoists have targeted vehicles, including buses. There have been indiscriminate bomb attacks by Maoists, including in Thamel, the main tourist centre of Kathmandu.
Maoists call frequent national and local strikes (bandhs) during which most businesses are closed. The lack of transport during strikes can make travel very difficult.
Australians in Nepal are advised to register with the Australian Embassy in Kathmandu, via the Department of Foreign Affairs and Trade on-line registration service.
I wouldn't be going to Nepal if I didn't have to