Protesters, who say his December 20 decision was unconstitutional, gathered outside his office, despite coronavirus edging at rallies.
Oli says his internal quarrels and lack of cooperation from his party have paralyzed the decision-making process, forcing him to seek a new popular mandate.
Security officials said at least 10,000 people were on the streets to take part in the march – one of the most intense protests the country has witnessed since Oli dissolved parliament.
“We tactfully managed to rally about 10,000 protesters,” said Basanta Bahadur Kunwar, a police spokesman.
The country’s top court will continue to hear dozens of petitions against Oli’s political movement in January and its plans to continue parliamentary elections next year, on April 30 and May 10, less than two years ahead of schedule. .
“The prime minister does not have the authority to dissolve parliament under the constitution. Therefore, he should reverse the decision immediately,” said Rajesh Thapa, a 19-year-old student, waving a flag with a red hammer and a sickle printed on it. , a symbol of the ruling communist party.