Moody Investors Service (MIS)has upgraded India’s local and foreign currency issuer ratings to Baa2 from Baa3 and changed the outlook on the rating to stable from positive.International rating agency has revised the sovereign rating of India a notch above investment grade after a long gap of 14 years.Interestingly, the last time the global rating has revised the rating was when the BJP government led by Atal Bihari Vajpayee was in power.The global ratings agency, however, cautioned that high debt burden remains a constraint on the country’s credit profile.