Some 6.7 million voters will be called to the polls tomorrow to elect a new 250-seat parliament in early elections called by the SNS after Belgrade launched talks in January with Brussels to join the European Union.
Long seen as a pariah for its role in the 1990s Balkan wars, Serbia, the largest country to emerge after the break-up of Yugoslavia, now hopes to join the 28-member bloc by 2020.
"We need a landslide victory to create new jobs, firmly pursue reforms and fight corruption with full force," Vucic told supporters at a final rally this week.
Vucic, now tipped to become prime minister, has spearheaded his party's gain in popularity thanks to a high-profile anti-graft drive which has led to the arrest of several tycoons and former ministers.
More From This Section
The Socialists, led by current Prime Minister Ivica Dacic, who joined forces with the SNS after elections in May 2012, are polling second with around 14 per cent.
The outgoing government won support from Brussels to begin talks on joining the EU only after a historic accord with its long-time foe Kosovo last year.
But Kosovo, once the most sensitive issue in Serbia which still refuses to recognise its 2008 declaration of independence, has now been overshadowed by the dire economic situation in the country of 7.2 million.
A fifth of Serbia's workforce is unemployed and the average monthly salary is USD 480.
With public debt rising to more than 60 per cent of GDP, the future cabinet will have to reform obsolete labour laws and cut down on red tape, experts say.