Bulgarian train

Bulgarian train (Bosnian, Macedonian, Montenegrin and Serbian Cyrillic: бугарски воз, romanized: bugarski voz; Croatian: bugarski vlak), in Bulgaria known as Indian string (Bulgarian: индианска нишка, romanized: indianska nishka), is a method of vote-rigging with the goal of influencing the election process through the control of ballots. The term was coined by the media in Bosnia and Herzegovina ahead of the country's general election in October 2010, and has since been used to refer to similar techniques used during elections in some of the ex-Yugoslav republics. The name of the method originates from its widespread use during the European Parliament election held in Bulgaria in June 2009, at which analysts' estimates indicate that 200,000-350,000 votes were sold or coerced.