With seven parties having jumped the five-per cent hurdle needed to secure a place in parliament in Friday and Saturday's vote, analysts warn the political horse-trading could end in stalemate.
To make things worse, the Social Democrats tried but failed yesterday to oust their leader Bohuslav Sobotka over their worse-than-expected election result.
Analyst said his prospects of becoming the future prime minister were growing dim.
ANO, which means "yes" in Czech and is also an acronym for Action of Alienated Citizens, wooed voters angered by recession, austerity and a dramatic spying and bribery scandal that toppled the centre-right coalition of Petr Necas in June.
The EU member state emerged from an 18-month recession in the second quarter of this year, but it remains plagued by endemic corruption.
The Social Democrats (CSSD) scored just 20.4 per cent of the vote, only 1.8 points more than ANO.
They had been pegged as runners-up, but finished third with under 15 per cent of the vote.
The Slovak-born Babis, a media mogul and food baron who is the Czech Republic's second richest man, has so far sent mixed messages about whether he will team up with the CSSD.
Analysts believe the Social Democrats will most likely strike a deal with the centrist Christian Democrats -- who scored 6.8 per cent -- and then secure backing from ANO.
Coalition governments lacking comfortable majorities are the norm in the Czech Republic, with smaller parties or independent MPs often wooed for support.
A legacy of four decades of totalitarian rule, corruption has plagued the country of 10.5 million people since its 1993 split with Slovakia.
Transparency International ranks it as more corrupt than Rwanda and a Gallup Institute survey last week showed 94 per cent of Czechs believe graft is widespread in government.
