Singh listed fiscal deficit, inflation and current account deficit as three barriers that can affect the realisation of the growth potential of the economy.
"Given the formidable challenges facing our economy, the Finance Minister has done a commendable job," the Prime Minister said in an interview to Doordarshan soon after the presentation of the General Budget for 2013-14.
"The Finance Minister has taken important steps to reverse pessimistic mood with regard to investment climate, with regard to the growth potential and possibilities of our economy," he said.
"We need, as the 12th five year plan has mentioned eloquently, a growth rate of about eight per cent. This is a growth rate which is consistent with our underlying potential," he said, adding it was a difficult task which cannot be achieved in a single year.
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Singh said the Finance Minister has laid out a roadmap which has "plenty of food for every ministry to chew there".
Expressing confidence that India could return to eight per cent growth within three years, Singh said all ministries needed to work together to convert the challenges identified by the Finance Minister into opportunities.