Eighty protesters were rounded up from different parts of Kathmandu on Wednesday, police said, for trying to enforce a general strike that disrupted areas of the Nepalese capital.
Transportation, schools and markets were forced to shut down in Kathmandu and some other parts of the country as student unions took to the streets to protest against petroleum price hikes.
Heavy security was deployed in the capital and police said some vehicles were torched and vandalized.
The government raised the price of petroleum by 10 rupees (0.10 dollars) last week.
The move was also criticised by lawmakers in the parliament on Tuesday, with the opposition stalling proceedings in the hope of forcing a revocation of the measure.
The government said it was compelled to raise the price of fuel to make up for a heavy loss faced by Nepal Oil Corporation.
