In a big sentiment booster, global rating agency, Standard & Poor's on Friday raised its credit outlook on India to 'stable,' from 'negative.'A stable outlook reduces the risk of a sovereign rating downgrade.S&P said the stable outlook for the next 24 months reflects its view that the new government has both the willingness and capacity to implement reforms necessary to restore some of the country's lost growth potential, consolidate its fiscal accounts, and permit the Reserve Bank to carry out effective monetary policy.But S&P also cautioned that it could lower the rating in case the government's structural reform agenda stalls.S&P further said that it could raise the rating itself if the economy reverts to a real per capita GDP trend growth of 5.5 per cent per year and fiscal, external, or inflation metrics improve. The revision in outlook comes ahead of Prime Minister Narendra Modi visit to the US.