Credit rating agency Moody's has downgraded the local currency ratings of state-owned Oil and Natural Gas Corporation (ONGC) and GAIL, as a reflection of the risks that these two entities share with the Indian government. Moody's Investors Service has downgraded the local currency rating of ONGC to Baa1 from A2 and that of GAIL to Baa2 from A3. The outlook for both the ratings is stable.