Prime Minister Najib Razak has been warned not to make up for the huge shortfall in his Budget 2015 with further borrowings as the country can ill afford it.

PKR's Bayan Baru MP Sim Tze Tzin said the budget shortfall caused by plummeting world oil prices, the weakened ringgit as well as the huge flood disaster recovery expense, may be as high as RM25 billion, or 9.2 percent of the budget.