SOFIA, July 5 (Xinhua) -- Several exit polls indicated the center-right Citizens for European Development of Bulgaria (GERB) party got a overwhelming win in Sunday's parliamentary elections.

    Five Bulgarian parties will certainly make their way to the next parliament, according to the exit polls conducted by several famous polling agency like Gallup International and Alpha Research.

    The opposition GERB party won a landslide victory over the ruling Socialists with some 40 percent of the vote, but not an outright majority. GERB, whose founder, informal leader and most popular face is Sofia mayor Boiko Borisov, is expected to secure between 90-106 seats in the national parliament.

    It is followed by the ruling Socialist Party, which garnered around 18 percent of the vote and will capture as many as between 56-68 MPs in Bulgaria's 240-seat unicameral parliament.

    The ethnic Turkish Movement for Rights and Freedoms (DPS) of Ahmed Dogan is third with 11.6-13.5 percent of the vote. The nationalist "Ataka" party of Volen Siderov is fourth with about nine percent of the vote. The rightist "Blue Coalition" made up of the Union of Democratic Forces, led by Martin Dimitrov, and the Democrats for Strong Bulgaria, led by former Prime Minister, Ivan Kostov, are fifth with some 7.5 percent.

    "We will begin work on the formation of the future government immediately," Borissov said on Sunday evening. He added that the party will wait to see the final results, the distribution of seats and whether it will be able to form a government on its own.

    He noted that he could call at any moment any of the leaders of the Right parties entering Parliament.

    "I hope the negotiations would be useful," Borissov also said.

    Taking a question, Borissov stated that if he declines a nomination for the position of a prime minister, this would mean an attempt to avoid responsibility at a very difficult moment for Bulgaria.

    In a separate development, GERB leader Tsvetan Tsvetanov said that the next government will be right-of-centre one and will be formed as soon as possible.

    Boiko Borissov is one of the likeliest nominees for a prime minister, Tsvetanov said, but refused to comment on the possible negotiations on a future government.

    Everything that is to the detriment of the Bulgarian society would be revised, Tsvetanov went on to say. It is high time to held someone liable, he added.

    According to the data released by the Central Electoral Commission, a total of 4.14 million Bulgarians, or 60.2 percent of the eligible voters, turned out for Sunday's parliamentary elections, which is also the first general elections after the country's accession to the European Union.

    The Socialist-led three-way coalition of the outgoing Prime Minister Sergei Stanishev managed to usher Bulgaria into the European Union in 2007, but has been harshly criticized both at home and abroad for its failure to reform slow and corrupt courts, curb the powerful organized crime and clear up its act in the absorption of EU development funds. Massive abuse by officials made Brussels suspend or scrap millions of euros in aid planned for agriculture and infrastructure.

    In contrast, Borisov's party has pledged to jail corrupt officials and crime bosses.

    Observers from the Organization for Security and Cooperation in Europe, the Parliamentary Assembly of the Council of Europe, and five Bulgarian non-government organizations were monitoring the vote and will release a report on Monday.

    Under local legislation the Central Electoral Committee has to announce the final results and the distribution of MP seats no later than July 9. The names of the newly elected members of parliament should be known on July 12 at the latest.

    Bulgaria's President Georgi Parvanov has announced plans to convene the new parliament as early as on July 14 amidst expectations that the new cabinet will be born in heavy labor.