The Nepal police on Friday used tear gas and water cannons to disperse pro-monarchy demonstrators who torched a house and tried to break security barricades in Kathmandu, witnesses said.
District authorities first imposed a curfew at 4:25 pm till 100ey, later extending it until 7 AM on Saturday. Nobody was allowed to move about in certain areas.
Sabin Maharjan, 29, from Kathmandu, died at a hospital after sustaining a bullet injury during the clash, authorities said.
One person was injured in the clash, an eyewitness said.
Hundreds of riot police personnel were deployed in Kathmandu to avert a clash as pro and anti-monarchy supporters held separate demonstrations.
The police detained several youths for defying restrictions when demonstrators attempted to move towards New Baneshwor, a restricted area.
Pro-monarchy Rastriya Prajatantra Party and others joined the protest.
Nepal's political parties through a Parliament declaration abolished the 240-year-old monarchy in 2008 and turned the erstwhile Hindu kingdom to a secular, federal, democratic republic.
The monarchists have been demanding the restoration of the monarchy since the former king appealed for support in his video message telecast on Democracy Day (February 19).
The pro-monarchy activists also held a rally on March 9 in support of Gyanendra who landed at the Tribhuvan International Airport from Pokhara after visiting religious places in different parts of the country.
Some supporters displayed photographs of Uttar Pradesh Chief Minister Yogi Adityanath's image alongside Gyanendra's.
On the other hand, thousands of anti-monarchy supporters led by the Socialist Front gathered at Bhrikutimandap, chanting slogans like "Long live republican system", "Take action against corrupt people", and "Down with Monarchy".
The anti-monarchy front was joined by political parties such as the Communist Party of Nepal (Maoist Centre) and CPN-Unified Socialist.
CPN-Maoist Centre chief Pushpakamal Dahal Prachanda among others addressed a public meeting organised by the Socialist Forum at Bhrkutimandap.