Hungarians vote Sunday in parliamentary elections that are expected to produce a landslide victory for conservative Prime Minister Viktor Orban party.

Since the last elections in 2010, Orban and his Fidesz party have governed with a more than two-thirds majority in parliament.

According to opinion polls, the only uncertainty is whether Orban will again have the same strong backing in parliament.

Surveys have tipped Fidesz to win 47 per cent of the votes, the opposition Socialist Party 23 per cent and the far—right Jobbik party 21 per cent.

All other parties will struggle to overcome the 5—per—cent hurdle and win seats in parliament, with the ecological party LMP having the best chance, pollsters predicted.

With votes of parties that fail to qualify distributed according to the electoral result, experts estimated that Fidesz may win a two—thirds majority by claiming 45 per cent of the ballots cast.

Some 8 million people are registered to cast ballots for 199 seats.

For the first time nearly 200,000 ethnic Hungarians from neighbouring countries have been allowed to vote.