The correct answer is the Reserve Bank of India. The Reserve bank of India manages the public debt of central as well as state governments. Reserve Bank of India is the Central bank of India and plays an important role to maintain the economy in various ways. It issues new currency notes, interest payments, and repayment of loans. The total amount borrowed by the government is known as Public debt. The list of main sources of Public Debt is government securities or G-secs, Treasury Bills or T-bills, External Assistance, Short term borrowings, Public Debt definition by Union Government. Additional InformationFunctions of RBI include:Issue of Bank NotesBanker to Government i. e. manages the banking needs of the governmentRepresents the Government of India as a member of the IMF and the World BankCustodian of Cash Reserves of Commercial BanksCustodian of Countrys Foreign Currency ReservesLender of Last ResortController of Credit i. e. Managing money supply (Liquidity)General information about RBI:Headquarters- MumbaiGovernor- Shaktikanta Das (present)Established on 1 April 1935 in KolkataMoved to Mumbai in 1937