Demonstrators hold a poster depicting Hungarian Prime Minister Viktor Orban as Matyas Rakosi, the communist-era dictator of the 1950s, during an anti-government march in Budapest.

Budapest - Tens of thousands of Hungarians protested in central Budapest on Sunday against the centre-right government, demanding more transparent legislation and protection for the country's free-market democracy.

The rally was timed to coincide with the 55th anniversary of Hungary's 1956 revolt against Soviet rule.

Protesters, organised mainly through Facebook, came from a loose alliance of liberal intellectuals and unions, which has grown in recent months alongside deep discontent with all political parties.

Hungary's ruling Fidesz party has lost more than a million voters since it won a two-thirds majority in parliament last year, alienating them with measures many feel have been forced on them after little or no consultation.

The government has said it has done more than previous administrations to listen to voters.

To reduce public debt and the budget deficit, Fidesz grabbed about $15-billion worth of private pension fund assets. It plans a series of tax hikes and austerity measures next year to contain spending. Fidesz has restricted the powers of the top court, and has rewritten the constitution.

Earlier this year it passed a controversial law on the media and it is about to change the electoral system.

“We have come together to show again after 55 years that we stand up for our rights, for democracy,” Peter Juhasz, spokesperson for the organisers, told the crowd of about 25 000.

“Many people would like to talk for the citizens, but it is we citizens who have to show that we don't like the system,” said Juhasz.

Protesters said they wanted to show the government that its practice of legislating without consultation was unacceptable.

“It is very important that we give a signal,” said Andras Forgach, a 59-year-old writer and dramatist from Budapest.

“These demonstrations allow new faces to appear. It's like a casting, and we are the ones who do the casting... Something is brewing here, a formation that might have a shot at the next elections,” he said.

Hungary holds its next parliamentary elections in 2014.

Reka Papp, a senior member of the University Students' Association said, “In the prior two (previous Socialist government) terms we stood by, looking on like idiots as they stole the shoes off our feet. Our passivity led to this two-thirds (majority of Fidesz). We didn't show an alternative to Fidesz then; it's time to start.”

Balazs Denes, Chairman of the Hungarian Civil Liberties Union, called for the organisation of a new opposition to form a coalition and take power.

Across town, outside the headquarters of the Hungarian Banking Association, far-right opposition party Jobbik, which has 46 seats in the 386-seat parliament, held a rally with the slogan “we drove out the tanks and were subjugated by banks”. - Reuters