"Given the weak growth momentum in the region and the difficulties in raising tax revenues and curbing expenditure growth, fiscal deficits will remain substantial in the near term," the report titled 'World Economic Situation and Prospects 2014' said.
"In India, the government is unlikely to meet its target of reducing the deficit to 4.8 per cent of GDP in the current fiscal year 2013-14 since growth is below projections and the depreciation of the rupee pushes up the subsidy bill," it said.
With regard to economic expansion, the report said, India is expected to grow at 4.8 per cent in the current fiscal but would rise to 5.3 per cent in 2014-15 on increased domestic demands and other factors.
"Economic growth in India is expected to accelerate to 5.3 per cent in 2014 as a result of a good monsoon season, a slight pick-up in investment activity, and stronger export growth supported by a cheaper national currency and improved demand for goods from the European Union and the US," it said.
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The report observed that the tapering of the Fed's bond buying programme could result in significant capital outflows, requiring further monetary tightening, especially in India.
"This could weigh on economic growth. In addition, higher consumer price inflation, resulting for example from subsidy cuts for food and energy or from further depreciations of currencies, could slow household spending and domestic demand, while also limiting room for monetary easing," it said.
In recent years, the government regularly missed their deficit-reduction targets by a wide margin, it said, adding growth projections proved too optimistic and expenditures on food, fuel and fertiliser subsidies were significantly higher than anticipated.